Random shutdowns: my experience, and a suggestion

I own a BlackBook whose random shutdowns began a couple of weeks ago.
During my first trip to my local Genius Bar, the guy behind the counter reset the PMU and PRAM, and was unable to reproduce the problem, and sent me on my way.
The random shutdowns continued.
During my second trip to the Genius Bar, the guy was able to boot the machine from another drive, and was able to reproduce the problem. The machine was sent to the repair center for servicing. I got it back a few days later.
Random shutdowns have still occurred, but I find that if I reset the PRAM as the machine is booting, and wait for at least three startup chimes before letting go of the key combination (control-option-P-R), the machine seems to stabilize and not shut down on its own, at least so far.
Before repair, the machine was also exhibiting the "vertical colored lines at startup" problem. Before that, it needed a replacement power adapter and a replacement battery (the battery was refusing to take a charge or even be recognized by the computer).
Various theories for the cause or causes of the problem with random shutdowns have been suggested -- along with a number of magic-bullet solutions from different sources. My guess is that even Apple isn't sure what's causing the issue, and there's certainly no foolproof solution that the user can apply. We'll just have to wait and see what comes of the investigations.
Despite these problems, I still love the BlackBook and think it's perhaps the most beautifully designed computer ever made. I assume that once these growing pains subside, Apple will have a total winner on its hands.
MacBook (black) 13" Mac OS X (10.4.7)

I have a whitebook bought in June, shutdowns started about 6 weeks after I got it. Did the whole tech support line thing several times resetting various things etc. No change. Sent it in for repair with a strong encouragement that it would only take 48 hours. It is now 10 days later and repair is still on hold. Sent in several "why is this dragging on" and got nice automatic reponse saying they would respond in a day or two. No real responses yet. Called today the helpful tech said they would check and see what was holding things up and let me know when I called back in 48 hours. Assured me I would not be without my Macbook more than a week longer. Have missed work and have a presentation on Friday that I will have to do without it. Had I known it would take this long I would have taken my chance that it would not shut down mid stream in the presentation. I am very disapointed with Apple at this point. Have been a long time user and own stock etc. This is the worse customer service I have gotten on a computer problem, personal or business. Apple needs to realize they have a batch of lemons on their hands and bite the bullet and replace them. I am not encouraged to hear others are getting their books back repaired only to find the problem on going.

Similar Messages

Random shutdown issues, battery, and overheating.

Hi,
About two weeks ago, I've experienced random shutdowns on my MacBook Pro (Bought it on October).
I am not sure if all this problem was about battery issues. First I've charged it for the first time and only lasted 1 hour. then I recalibrated it and now it last 2 hours and a bit more.
Now, apart from having battery issue, I've experienced random shutdowns from my laptop. I had installed all the available updates for my laptop.
Reading all the posted topics about heat, shutdowns and batteries, maybe my problem is just overheating.
So I've installed the fan control, adjusted the speed to 3500 rpm and worked fine.
But one thing came to my mind:
Is it safe for the fans to actually force the speed all time? if so, their cycle life could be shorter?.
On either case, what if the MBP actually has a defective factory error and if I still be using it, it could completely "melt from the inside"?
Does the battery itself has something to do with the overheating itself?
Maybe I should call for a laptop replacement as well.
Any suggestions?

Your Mac will very likely last as long as you own it or otherwise choose to upgrade. The heat issues posted here are not entirely valid. With that said, you might want to verify that your battery isn’t on the recall list by viewing the link provided below.
Excerpt:
"The affected batteries have model number A1175 and a 12-digit serial number that ends with U7SA, U7SB or U7SC. To view the model and serial numbers located on the bottom of the battery, you must remove the battery from the computer. The battery serial number is located above the barcode. See photos below. Only batteries within the noted serial number ranges need to be exchanged."
https://support.apple.com/macbookpro15/batteryexchange/
Regards,
 MBP-15"/2.16/2GB RAM/7200/W8612... Mac OS X (10.4.8) G4 Tower (OS 9/10), Dell 620 WorkStation (XP Pro), Gateway P4 (XP Home)

MacBook 3x went to service center, still random shutdown, what to do next?

Hi! Mine is week 17, and mainboard already replaced for 3 times. The last one they replaced the battery also.
There is no Apple Center in here, I deliver it to the local authorized Apple service.
I just got my 3rd replacement yesterday, and I noticed from the first place that it got blank gray screen on startup & can't sleep using the Energy Saver. But I waited long enough for the repairement, so I decided to take it home anyway. At home, I did the commandopt+pr and reinstall it back to 10.4.6 using the equiped cd. But still it can't sleep using Energy Saver..
But the blank gray screen problem is gone.
Today I calibrate (since they replaced the battery with brand new one), after the process done (5 hours sleep, zero battery), I plugged the magsafe and I heard looping click sound, and it went random shutdown again!
And it goes shutdown on: yes dev null
I just do the commandopt+pr, and the yes dev null havn't invoked the shutdown. But from my previous shutdown experiences, it will go crazy random shutdown in about 3 days ahead from now.
So what to do next? going to the authorized service again?
I'm sick and tired now.
Also the outer body case is suffers little scratches, and it's getting mucher and mucher everytime I got it back from repairement.
Oh dear God do help me! All I want is for my money back, at least a new replacement for my MacBook.
And they said Apple wouldn't allow it.

Since you're not actually turning it in to Apple for repair, I wonder if the repair shop that's doing the work knows what they're doing. Since you've had the logic board replaced three times, that's pobably not the solution. I had the random shutdowns and verticle lines on the display, and Apple replaced my heatsink and then erased the HD and re-installed to factory settings, 10.4.6. I then migrated my data from my backup HD, updated OS to 10.4.7, and installed the SMC firmware update. No problems since then.
Many other users have had their logic board replaced more than once only to continue having the problems. Some have had logic board replaced once and then no longer have problems. Others have had other parts replaced, such as in my case and have had no problems.
Apparently each MacBook has to be diagnosed individually to find the problem.

Mega 180. Randomly shutdown.

Anyone ever have this issue? The meda 180 just randomly shutdown. The light stayed on for 'PC', and the cpu fans were spinning, but the cdrom and hdd powered down, as well as there was no video. Nothing was running other than winXP, and it wasn't any hotter than normal. upon trying to boot it back up, it would sit and do nothing. i reset the cmos, and it booted again, but... odd.
amd barton 2500
corsair 2700 256mb x1 (sad, i know)
wd 120gb jb
random brand dvd 16x
mega 180, newly flashed bios
Also, while we're on the subject, the system takes forever and a year to detect ide drives. jumpers are right, and they are new units that work fine in different machines.
--> fix: me and a friend were talking. we decide the only thing I hadn't tried was changing out the jumpers themselves. to our humor, and my delight, switching the jumpers out for some newer ones laying around (same type of jumper, mind you) and the issue with ide drives taking forever to detect is fixed. however, I am still at a loss for the random shutdown..

oi, and when I have cdrom before hdd-0 in the boot priority, it will not boot unless there is a cd in the drive. boot other device is enabled... shouldn't it be cycling to the second boot device when the cd fails..? quit an annoyance.

Random Shutdowns on a MBP Core Duo, Suggestions/Help would be great

I've had two random shutdowns of my mac since purchasing it back in August. The first happened on January 11th, when it said it was at 11-12% power. The second happened about two weeks later, at 23% power. I've been looking around these forums and other pages, and haven't really found anything that has helped so far.
Details of the first crash:
Open apps- Firefox (5 windows, two had about 20+ tabs open, the rest were single page, and yes, I know it crashes often with that many), Camino (1 window with 5 tabs), and Word 2004, as well as Quicktime open to the iPhone stream.
I had an USB key plugged in, to which I was saving my Word document.
So I was working in Word while in front of the TV and during an interesting bit, didn't do anything for a minute. So, like the many times earlier, it slept the display to conserve power (in "Better Energy Savings" mode). I moved my finger on the trackpad to wake it back up, and it turned back on the backlighting, and then stopped. I thought it had just went back to sleep, but after a few key presses and a check of the light that usually pulsates when it's sleeping (plus the USB key , I found out that the computer had turned off. I let it sit for a while, and when I plugged it back into AC power and turned it on, with my USB key still plugged in, and although it booted to my desktop, the Finder never started (so no desktop icons for anything), unplugging the USB key fixed this and everything returned to normal. I then installed the only update I was missing, one for iChat, restarted, and continued working.
In the second incident, I only had my browsers open, nothing external plugged in, and my displayed was dimmed to the third darkest level. When it was at about 23% power, it once again randomly shut down. This time, I attempted to turn it back on, and nothing happened. After plugging it into AC power, it turned on and once logged in showed a very low (2-6%) power, so I guess it was reporting the power incorrectly?
Anyways, went back to look at the battery exchange on Apple's website. I had checked before when they started it, and was pretty sure mine wasn't covered, and a second check confirmed that. My Mac's serial is W8618091VWX, which isn't covered by the recall.
So, I have a few questions:
1. Is there a toll-free number I can phone Apple (Canada) at? The only number I've found seems to be only free for those who bought their computer in the last 90 days, which I'm no longer covered by, and haven't been for a while. Talking to someone at Apple would be good.
2. Otherwise, if I took my computer to an Authorized Service Provider, would they be able to take a look at it and answer some questions? I bought my MBP at a London Drugs and they aren't service providers, so how much would it cost to do this?
3. Is there a definite cause for these random shutdowns? It seems to vary among other people, so it would be helpful if I could try something to eliminate one of the causes.
4. Does Tiger report battery levels pretty accurately? In the past when I reached 6% I got a warning and was able to plug it into AC power and had no problems.
Thanks for any help you can provide.
Macbook Pro 2.16 GHZ Core Duo, 15.4", 1GB RAM Mac OS X (10.4.8)

I had this problem of RSD fixed for a while after having had the battery replaced by Apple, till yesterday, when the MBP suddenly experienced a shutdown during a meeting presentation, while it was connected to the AC power. At the first restart, as coming back from a stop-mode, for a while appeared a warning of low-battery level, with battery level indicator flashing red and showing the empty icon but with a 86% of charge level and a new shut-down definitely put the MBP out of service, no way to have it functioning again. Obviously, AC power was OK, no problem with the microphone or the projector ( I was at the podium of an international meeting) and a lucky precaution ( double save of the same presentation on a friend's twin MBP, that worked correctly) saved the job.
Then, a couple of hour later, my MBP started up normally and everything works fine, with or without MAGsafe connected to AC power, almost up to now.
I've read the post with a link to the procedure for resetting the power controller chip on the mainboard, I'll do it in a minute, hoping that this will help.
Any further suggestion?
ambabu, Italy

Macbook in repair for kernal panics and random shutdowns.....

It's been exactly one week since I sent in my macbook for random shutdowns. I called today to check on the status and they told me it was on hold because they needed more info from me as they can not replicate the problem. This thing was shutting down on me 3-4 times a day without warning. I gave them all kinds of suggestions, ie: check logic board, power management system, panic logs, etc. Don't these techs know how to troubleshoot? My biggest fear is that they won't find the problem and they'll send my defective Macbook back to me. What are my options then? It was bought for me by a friend in Denver who brought it down to Albuquerque for me (500 miles away) so returning it to a store is not an option. I know other people are having this problem so I know I'm not crazy and delusional. I don't want to be stuck with a defective computer but my 2 week grace period is over. What can I do?
MacBook Mac OS X (10.4.5)

Here's an update on my repair. It's been 2 weeks and they finally found the problem to be a bad logic board. They said it was on hold for repair to replace the board and didn't specify a return time. I expressed a concern with having a month old computer that has already been in for a major repair. After some polite but concerned dialouge between myself and a product specialist, she offered me a new one. I accepted the offer gladly. She even asked black or white? My original was white. So chalk one up for Apple customer support. They seems like they're out to make things right with their customers. You just have to remain calm and patient.

Random Shutdowns and Logs

Like some others, I have started having random shutdowns and some high fan activity. So I can probably guess that it is the power supply.
However, in previous posts on this topic, some have suggested checking a couple of different acitivity logs that exist somewhere on everyone's Mac.
My question is...what logs might they be, and how does one find them?
Thanks for any assistance....
CHUCK
iMac G5 Mac OS X (10.4.8)

Hi Chuck--
But is there a log that would show me why the
computer randomly shutdown?
Shutdowns and going to sleep are two different things. If your power supply is starting to fail, your computer will periodically just shutdown completely. Sometimes, the fans will run faster, but often, they won't. If this happens, you can find it out by looking at the system log right after you reboot, or by typing a command in the Terminal application. Terminal is found in your Utilities folder. You would just open it and type the following command, followed by the "enter" key:
<pre class="command">sudo dmesg | grep shutdown</pre>Unfortunately, those codes are not published anywhere. However, my iMac G5 has shut off a couple of times due to the UPS inexplicably draining its battery. The last time was Sunday night, and here's the code I get from that command (you'll have to type in your password when it asks):
<pre class="command">AppleSMU -- shutdown cause = -110</pre>I've also seen -118 and -122 as the error codes. I think the latter came when I had the same random shutdown problem. You can also find the same information in your system log, using the Console application. However, it's mixed in with a whole bunch of other stuff, so it's harder to find. You can use the little search window at the top right of the Console app to help you narrow it down. If your system has been on overnight since it last shut down, you may need to look at an older log, so look at the one marked system.log.0.gz for yesterday, and so on, where the larger the number in the name, the older it is.
The second problem is that the computer overheats and puts itself to sleep. This is, fortunately, easier to find in the logs. Once it cools down a bit and you can get it running again, use the Console application and see if you see lines much like this:
<pre class="command">May 28 10:49:08 localhost kernel: Thermal Manager: max temperature exceeded for 30 seconds, forcing system sleep
May 28 10:49:08 localhost kernel: SMUNeo2PlatformPlugin core dump:
May 28 10:49:09 localhost kernel: IOHWControls:
May 28 10:49:09 localhost kernel: [0] "System" Type:"fan-rpm" Id:0 TGT:1343 CUR:1343
May 28 10:49:09 localhost kernel: [1] "Hard Drive" Type:"fan-rpm" Id:2 TGT:1929 CUR:1919
May 28 10:49:09 localhost kernel: [2] "CPU" Type:"fan-rpm" Id:1 TGT:4400 CUR:4401
May 28 10:49:09 localhost kernel: [3] "sysclk slew" Type:"slew" Id:256 TGT:1 CUR:1
May 28 10:49:09 localhost kernel: IOHWSensors:
May 28 10:49:09 localhost kernel: [0] "CPU Power" Type:"power" Id:5 CUR:12.2119 W
May 28 10:49:09 localhost kernel: [1] "CPU T-Diode" Type:"temp" Id:0 CUR:85.38558 C
May 28 10:49:09 localhost kernel: [2] "CPU Current" Type:"current" Id:1 CUR:1.15552 A
May 28 10:49:09 localhost kernel: [3] "CPU Voltage" Type:"voltage" Id:2 CUR:11.64384 V
May 28 10:49:09 localhost kernel: [4] "Hard drive" Type:"temperature" Id:4 CUR:54.0 C
May 28 10:49:09 localhost kernel: IOHWCtrlLoops:
May 28 10:49:09 localhost kernel: [0] "Clock Slew" Id:0 MetaState:1 "Force Reduced Speed"
May 28 10:49:09 localhost kernel: [1] "PowerMac8,1 B System Fans" Id:1 MetaState:0 "Normal"
May 28 10:49:09 localhost kernel: [2] "CPU Fan" Id:2 MetaState:0
May 28 10:49:09 localhost kernel: ---------------------------------</pre>Your output could be somewhat different, since this is the log from an iMac running 10.3.9, not Tiger.
If you see this error, the fans can't get enough cool air flowing through the interior of the computer. Some people have reported that they've had success in fixing it by carefully cleaning out the vent holes at the bottom of the iMac, so air flows freely again. They've reported that pet hair or dust can get in there and clog it up.
On the other hand, this log is from a replacement logic board on that iMac. When I showed the techs that log, they didn't even bother with any tests, other than look to see if the interior of the computer was dirty (it wasn't) before they decided to replace the logic board as a defective.
charlie

White Macbook 2006 random shutdown solved removed cpu heatsink and more

I picked up a cheap macbook from a secondhand retailer for $300 and it regularly shutdown, froze, restarted as well as the grey kernel panic screen completely random no real pattern. I set about trying to solve the problem swapping ram and hard drive with my identical 2006 macbook (which I had similar problems with last year, fixed that one with a new battery connector cable). The ram and hard drive made no difference so I downloaded istat menus to see if any combination of cpu voltage, current and temperature were causing the random shutdowns. It seemed when the temperature reached certain values the computer would shutdown or freeze(around 30 to 50 degrees). I'd read on other forums about faulty cpu temperature diodes so I reapplied heatsink compound to the cpu heatsink and checked all the wiring for shorts but nothing seemed to solve the problem. I was ready to retire the computer and use it for spares for my other macbook when needed but I pulled the keyboard off one more time and tried something completely radical. This fix requires some forward planning and software installation but it has completely solved my Random shutdowns completely.
for instructions see my next post *Fix for random shutdowns white macbook*

Ok this is not for the non technical person but it is quite a simple process with the right instructions.
This first step is very important install the software coolbook($10) and fan control (Free)( not smc fan control). Set up coolbook to operate the cpu at the lowest speed and voltage for both power adapter and battery(1002MHz and .95Volts). Remove the keyboard to access the computer logic board (instructions can be found at iFixit). Remove the four screws and two connectors holding the heatsink to the logicboard and gently lift the heatsink out (very important that you leave the fan screwed in and connected). Close the computer back up if you wish to test just gently connect the keyboard and loosly sit the keyboard back in. Restart and reset the pram immediately. Let the computer boot up and then open system preferences and configure Fan Control to your liking. So far no random shutdowns for over a week (was getting many a day previously.

Random, Sudden Shutdowns - A redux and other things to rule out first

Do a google search for "macbook random shutdown" and you'll find many people with similar problems reporting on various forums. At present, this issue has not been picked up by the mainstream PC news media. However, one should also note that only a fraction of those with problems are suffering this particular fault. A large number of other reasons must be ruled out before a MacBook owner should become convinced their machine is one which suffers this problem. Bad RAM, poorly seated RAM, improperly installed hard drive, corrupted OS, corrupted plists, bad batteries, bad chargers, corrupted PMU, and corrupted NVRAM all need to be ruled out first!
My own MacBook suffered the random sudden shutdown malady and eventually required complete replacement after a logic board replacement did not solve the issue. Some of the MacBooks appear to have a hardware problem which surfaces after a period of use. Many reported their problems starting after a month of ownership. Coincidentally, that also coincided with the release of 10.4.7, but most likely that is not at the root of the sudden, random, shutdown problem.
(However, 10.4.7 is strongly implicated in a separate MacBook problem - colored vertical lines during boot on some machines. That is probably a separate issue.)
Description of the Random, Sudden Shutdown Problem
MacBook suddenly shuts off to a completely powered down state seemingly at random. There are no kernel panic, mouse freezing, or other premonitory symptoms. The machine simply powers down suddenly. The screen goes black. The hard drive spins down and no sleep light illuminates. The machine simply turns itself off.
The shutdowns may occur on either battery or with AC adapter attached. Some owners report their MacBook is less prone to sudden shut down while on battery vs AC adapter. My own afflicted MacBook would suddenly shutdown on a fully charged battery or on either of two AC adapters.
The shutdowns occur with either 10.4.6 or 10.4.7 OS loaded. I went through several cycles of clean installs of the base 10.4.6 and the Intel Combo update to 10.4.7 before it became clear that it mattered not which OS was running. Another indicator that this is not an OS issue is that sudden shutdowns can occur in target mode and also when running just the Apple Hardware Test - which relies on minimal software to operate.
The shutdowns tend to grow more frequent once they begin. They may worsen to the point that a machine will not complete boot up before shutting down. It may take several power up presses to start the machine. Oddly enough, a machine that had difficulty starting up, may be easy to start up several minutes later. It may run for hours or minutes before another sudden shutdown. The frequency is low and random enough that is very difficult to demonstrate this fault to a service technician.
Some users are able to induce a sudden shutdown by running their CPU's at high load and thus heating up the machine. This is easily done by running the yes command in two Terminal windows. Some users report their MacBook is more prone to sudden shutdowns when their CPU is relatively cool. The bipolar reporting is confusing. There may be more than one type of sudden shutdown being reported. One due to CPU overheating and another due to another hardware problem which has yet to be elucidated.
Resetting of the PMU and PRAM MAY temporarily reduce the frequency of the sudden shutdowns, but the effect is temporary. Indeed, the effect may not even be real given the randomness of the shutdowns. None-the-less, one must perform PMU and PRAM resets to ensure that some corruption of those devices is not creating a reason for shutdowns. On my own MacBook, resetting PMU and PRAM (four chimes) did not prevent the random sudden shutdowns.
The sudden shutdowns occur with well seated stock RAM, replacement RAM, and reseated/replaced hard drives. Swapping out and testing both RAM and hard drive helps to eliminate those as the source of the problem. On my own machine, I exchanged the RAM and the hard drive to eliminate them as the cause. This made it considerably easier for the Apple genius to decide it was an internal problem.
In my case, a logic board replacement did indeed solve the fault, but several days later, sudden shutdowns began again. Presumably either the replacement board has the same weakness as the original or some other component of the machine was the actual reason for the sudden shutdowns. The former is quite likely because the machine was made stable for several days with a new logic board. At that point, I requested to be swapped to a new machine and the Apple Store manager wisely decided to help out his customer. For that I am most grateful. However, it is unlikely that the majority of people will have their machines swapped out, but instead repaired.
At this time, no official statement regarding cause for or acknowledgment of the MacBook's sudden random shutdown problem has been made. Because the underlying cause has not been revealed, it is impossible to know that a logic board replacement will permanently solve the problem or merely result in the same fault recurring later on the replacement board. Of course, we do not know if it actually is a logic board flaw.
My advice to MacBook owners whose machines develop the sudden random shutdown symptoms are to...
1. Get your data backed up immediately. The machine will likely suffer more and more frequent shutdown events.
2. Revert to stock RAM and hard drive if you have installed after-market replacements. You must do this and see if the shutdowns continue to occur. Otherwise, the first thing blamed will be your RAM and hard drive.
3a. Perform a PMU reset, by shutting down the MacBook. Removing the battery. Disconnect the AC Adapter. Then, press the power button for five seconds. The reinstall the battery and mains adapter. Restart the machine.
3b. Reset PRAM by holding option-command-P-R keys down during startup until you hear the chime at least three or four times.
Resetting the PMU and PRAM are standard procedures you'll otherwise be asked to perform to diagnose your machine.
4. Do a CLEAN install of the OSX if you wish to totally eliminate a bad OS install as the problem. This will destroy all your data. Alternatively, an archive and install will be helpful without totally destroying your data, but that will not let you exonerate your system files and settings. An alternative is to run Apple's hardware test utility which is found on your OS installation disc. However, an extended hardware test is needed because the shutdown flaw may take hours to surface.
Note: If your MacBook has become so "narcoleptic" that it cannot even complete a boot up sequence, try holding the power button down until you hear a loud beep. That may allow an otherwise balky machine to start.
Once you have done the above, and are still seeing random sudden shutdowns, you have largely done the preliminary footwork that you'll need to prove whether your MacBook has this particular problem and not something more common. Then, call AppleCare or visit your Apple Genius to have the machine repaired or replaced. Hopefully, the root cause of this problem will be discovered, disclosed, repaired and prevented. For now, it appears only a fraction of the MacBooks are suffering this fault, but the machine population is still young. Overall, the MacBook is perhaps the finest laptop I've bought from Apple. It will be nice to trust the machine to not lose my work.
BTW - resetting PMU may induce a separate 10.4.7 related bug which results in your MacBook exhibiting a white screen with progressively more numerous vertical color lines during startup. This appears to be fixable by resetting PRAM and then temporarily changing display resolution to something other than the current setting and then back.

thanks for the comprehensive info. i experienced this for the first time today. i bought my macbook the day they were released. the shutdown happenned for me after leaving my computer on overnight with no programs running. about two minutes into web browsing it shutdown. it then shutdown in the middle of restarts. i disattached power cord, external hard drive, dvd burner & ethernet & it powered up and has been working for about 20 minutes since.
this computer has really been a lemon. first my superdrive scratches the **** (just previewed this, i can't believe they sensor the h_ word?) out of discs, then the trackpad button becomes very hard to push. i've been working around those issues using an external dvd burner and mouse, but not sure how to work around sudden shutdowns. i haven't been able to send it in for repairs yet since i bought it cause i needed it's dvd authoring capabilities for a class i was taking, plus i wanted to make sure nothing else went wrong (self fulfilling prophecy?). i was planning on taking it on vacation with me, but guess i better pack my old ibook too (which other than a cd burner which sucked from the start, has been very reliable). i'll send in my macbook when i get back.
anyway, thanks for the info & advice! i'll back up my crucial data now.
white macbook, 2GHz, 1GB ram (factory installed) Mac OS X (10.4.7)
macbook Mac OS X (10.4.6)
macbook Mac OS X (10.4.6)

My iPhone 5 randomly shutdown and rebooting doesn't seem to work for me, what should I do?

It also happens when I'm charging my phone, and also the battery percentage doesn't show that correct battery level not unless I turn off and on.. I tried rebooting the phone but it doesn't seem to work for me, random shutdown still happens..

Will not turn on, will not turn on unless connected to power, or unexpected power off
Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIsand corrosion.
Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
After at least 30 minutes, if:
The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
If the display turns on, go to step 4.
If the display remains black, go to next step.
Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.

Hello all, I saw this message in my Iphone 5 notes. it reads " Stop! who are you? And why can I read your and you my notices??" Please has anyone had any similar experience? Any suggestions/solution would be greatly appreciated. Thanks

Hello all,
I saw this message in my Iphone 5 notes.
It reads " Stop! who are you? And why can I read your and you my notices?? "
I did not write it.
Please has anyone had any similar experience?
Any suggestions/solution would be greatly appreciated.
Thanks

oliverMili wrote:
Hello all,
I saw this message in my Iphone 5 notes.
It reads " Stop! who are you? And why can I read your and you my notices?? "
I did not write it.
Please has anyone had any similar experience?
Any suggestions/solution would be greatly appreciated.
Thanks
I had a similar experience with mac e-mail where apparently someones ICLOUD id for their Iphone was created with an Alias I had @mac.com for years. Originally thought the mail was phishing and deleted without opening - then received forwarded mail from the other persons non-apple account - so gave feedback through mail to apple and also sent an email to the other persons non-apple account from a non-apple account telling them I was getting their mail because it was my alias.
That person did get apple to untangle the accounts so I did have to reset my password once it was done.
So one option would be to contact apple support to get them to find out what is going on with your account.
E-mail contact of the other person was easy once I had a legit account to send to -- don't know how you would contact the other person in notes.

IPad is a week old, and randomly closes off. Anyone have suggestions.

iPad is a week old, and randomly closes off. Anyone have suggestions.

Please make a Genius Appointment and take it in for service.

I am a new Logic user. I attempted to download the additional data (roughly 20GB) and for two days my Macbook has been alerting me that there are five seconds left for my download. Ha. I cant quit Logic, or shutdown my computer. Any suggestions?

I am a new Logic user. I attempted to download the additional data (roughly 20GB) and for two days my Macbook has been alerting me that there are five seconds left for my download. Ha. I can't quit Logic, or shutdown my computer. Any suggestions?

Sorry for the long subject line. Ha.

Random Shutdown and Mooing

I'm curious. Of those who have MacBooks that exhibit the random shutdown syndrome, how many also have the "mooing" fans? And how many shutdowns have occured to people who don't have a fan that moos?
My fan mooed and only turned on once at full throttle since I purchased my MacBook, and it started shutting down after about six weeks. I wonder if the problem involves the failure of the fan to cool the logic board (or some other part of the computer), which at some point fails due to the high head.
For now, my MacBook again works perfectly, but I wonder what will happen in six weeks' time, since I still have the moo.

I have bought a white MacBook at the Farmer's Market Apple Store in L.A. about a month and a half ago. Since last Sunday, it has been randomly shutting down on me.
It has happened both when the computer was cool (just turned on) and when the computer was hot (not alarmingly hot, though). It has happened with the computer plugged in and with the computer not plugged in. It has happened before the computer has gone to sleep and after the computer has awaken from sleep, never with any overwhelming workload.
It seems pretty random to me and, even though I almost never hear the fans, the temperature seems to have nothing to do with it.
For the past two days, the only way I had to turn it on and not get a shutdown a few seconds later, was to press the on/off button for ten seconds, until the light started blinking fast and it emitted an alien beep before turning on. Even so, it usually shut down after the first time it went to sleep.
Now that I am back in Brazil, where I live, the Apple phone service tells me they can't offer me any support (even though I bought it less than two months ago), 'cause you only get phone support for three months in the country where you bought the computer. This after two days of getting nothing but a busy signal from both numbers listed for Brazil in the AppleCare Service and Support Guide.
Granted I haven't bought AppleCare, but this is a major defect and I am appalled that they aren't dealing with this in a more forthcoming way, especially since I am still fully covered by warranty.
I have entered Brazil legally with my laptop, and for a simple lack of assistance and options, I have left it at an Apple Store in Rio for hardware tests. Unfortunately, my computer started up just fine in front of the tech support guy today, for the first time in nearly three days. Let's hope they can replicate the defect and SOLVE IT, godwilling.
But I've looked at many forums and found reports of people having to get their logic boards replaced two or three times, isn't Apple at least acknowledging that there is a problem here?

Random Shutdown and Previous shutdown cause: -x2

Hi,
I had twice "random shutdown" for now. My MacBook is about 4 month old and It happend with about 3 weeks between them.
I tried stress testing it with 'yes >/dev/null' heating it up and cooling it down several times but I could not reproduce the Problem. However, looking at older system.log files, I found the "Previous shutdown cause: -82" lines in there. My question: Some MBs seem to report -72, others -82 as the shutdown cause known as random shutdown but what actually is the difference? Is it possible to guess the time it will take to get it repaired depending on the shutdown cause (which obviously describe two different conditions)?
Thanks a lot in advance and sorry for my somewhat clumsy english;-)
Peter

I don't know where you are in Austria, but I took my RSD macbook to mcshark in Vienna, and they repaired it, replaced the case, and returned it to me in one day. That was last Friday and it's been working great since. They knew all about the heat sink problem, didn't even ask for my user name or password, left my hard drive completely intact - they were absolutely super.
If you are anywhere near Vienna, call McShark and make an appointment - they'll repair it quickly for sure.

Random shutdowns: my experience, and a suggestion

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