HT6114 Reboot loop after 10.9.2 upgrade

My 2009 (dual-quad) Mac Pro 4,1 is now stuck in a reboot loop after upgrading from 10.9.1 to 10.9.2.
//edit: I realized there wasn't a question: What is wrong with my computer and how do I fix it?
So far I have tried:
* Repairing the disk
* Repairing permissions
* Zapping the NVRAM/PRAM
* Resetting SMC
* Copying BootCache.playlist from a backup to /var/db
Other things to note about my setup:
In addition to the original hard drive, I installed a 4tb drive from which I have been working with since June. It is the 4tb drive that has 10.9.2 installed. The original 650gb still has 10.8.4 installed and all my original data pre-June.
Also installed is a VisionTek Radeon 7870 video card which powers my numerous monitors. I do not recall having to install anything extra, or modify any settings to get it to work. The only downside is you can't really see anything when booting.
In addition to the VisionTek card I also have one of the factory Geforce 120 cards installed. Using another monitor attached to that card I've been able to monitor the boot process using the command-v verbose output.
Of notable interest I get the dreaded "BootCache: unable to open /var/db/BootCache.playlist : 2" error, along with a few SMC errors. If these are important I can attach pictures taken of the boot process.
I am able to zap the NVRAM and boot the old 10.8.4 650gb drive. It loads fine. 10.9.2 will not boot into safe mode, but will boot into recovery mode.
As a final attempt to fix the BootCache error I copied it from a Time Machine backup into /var/db/ ensuring the correct permissions were set. After rebooting the file is deleted again.
I would greatly appreciate any help on this issue as this is my work computer. I do have full backups via Time Machine so I can reinstall, but I'm hoping there's another solution.

I just started a discussiion related to this topic in "Mac Pro."
https://discussions.apple.com/message/25019730#25019730
" I have a 2009 dual quad core Mac Pro (4.1) with an upgraded Radeon 7950 GPU. I use a 30" Apple Cinema display (DVI) and a 27" LED Cinema Display (Display Port). After updating to 10.9.2, the Mac would not boot, but went on a continuous re-boot cycle every 5-10 minutes without a flicker of life in either display. I unplugged both displays and the Mac booted. I could log in remotely from my laptop. I then attached the 30" Cinema Display into the DVI port and the Mac booted normally."
Dave

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Random iPhone crashes and reboot loop after iOS 7 upgrade

Hi all
Since I upgraded my iPhone to iOS 7, I suffer from random crashes/resets, where my iPhone reboots and enters a reboot loop (Apple logo, black screen, reboot, Apple logo, black screen, reboot, etc) that I can only exit by restoring the device (resetting doesn't help).
Some more information
a) The device: iPhone 4, 32 GB, has never been jailbroken, and has never shown any similar issues before.
b) The crashes/reboots: I haven't been able yet to find a pattern when and why they happen. I had reboots when searching for an app, when pluging in the wall charger, when entering the access code, and even when doing nothing at all (iPhone in my pocket). The only constant is the reboot loop after the crash.
c) What I tried so far: I restored the device several times, using normal restore (with the iTunes logo) and DFU mode (black screen). After that, I recovered from a recent backup (takes some hours), and everything is ok again - for some hours, until the next crash and reboot loop. I also set up the device as a new phone, and there it seems stable, so I exclude a hardware issue. I tried quite a few of the advices that I found when googling for reboot loops: reset all settings (this led to an another immediate crash and reboot loop), disable app background refresh, etc.
I've been using this device for my daily business. With the current instability (and the couple of hours it takes to bring it back to life again), it became more or less useless. I wish I could downgrade again (I know that I can't). My assumption is that either iOS 7, or some incompatible app or some corrupt setting is causing this situation. But I don't know how to proceed to isolate and eliminate the issue. I really would like to avoid setting up everything from scratch again.
Any advice is greatly appreciated!

All,
First of all, sorry for my half-finished post above. While typing, I was interrupted, and by reflex I hit CMD-S. Unfortunately, the stupid interface of Apple's support website interpreted that as a submit command. I tried to complete my text with the update function, but when finally hitting the submit button, I got an error message, and all my updated text was gone... No way to bring it back, and also no way to delete the half-baked posting. Quite frustrating.
Now, to complete what I started above:
In my case, the problem definitely had something to do with the springboard process (an iOS system 'app' that manages the iOS homescreens) and the watchdog process (another iOS system 'app' that monitors certain things on your phone and that can initiate a restart when it thinks the phone is frozen). In the folder '/Users/<your account>/Library/Logs/CrashReporter/MobileDevice/<your phone>' I could see what caused my crashes; they were all 'stack+SpringBoard' and the reason in these crash log files was 'Watchdog timeout'.
The following two forum posts helped me:
https://discussions.apple.com/thread/1676330?start=30&tstart=0
https://discussions.apple.com/message/20794982#20794982
I'm quite sure that my issues had to do with the 'application map' that is mentioned in the above posts. So far, Ive been thinking that it was just too large (as in the case of Andi1996 [second link above]), but jmbladen's observation seems not to support this. So, the absolute number might not the source of the problem, but I still assume that something went wrong with my application map during the upgrade from iOS6 to iOS7. I remember having stability problems before, as soon as all my 10 home screens were full of apps and newly downloaded apps would generate additional pages (only visible via iTunes). Considering that there are some fundamental changes to how we can organize apps within folders in iOS 7, it can well be that the springboard process just wasn't able to cope with my application map correctly within the 120 seconds before the watchdog process restarts the phone. My massive cleanup action must have fixed this somehow.
@jmbladen: I'm only using iCloud for the 'find my phone' functionality, so all the backup & recovery was done via iTunes from my local harddisk. And there was no temporal pattern for my crashes before. You might suffer from the same symptoms, but probably not because of the same cause.
My advice for anyone affected by random crashes and a reboot loop is to check out the directory with the CrashReporter logs mentioned above to find out what app or process causes the crash. If it's the springboard and watchdog problem, then you should try to clean up your home screens (from iTunes). Maybe the absolute number of apps is not that important, but make sure that you reduce the number of screens. And then sync and backup before you start using the phone again. In my case it helped.
Hope this helps someone else too.
P.S. Once you know the right keywords to search for, you find forum postings back to 2008 / iOS 2 describing exactly the same problem. This reboot loop is a very nasty issue, and it is hard to understand that Apple still hasn't been able to address this, or at least provide some better help on how to get out of it again.

Tour in Reboot Loop after Installing new Messenger

Hi all,
A couple of weeks ago I got a message saying there was a new version of messenger available, so of course I upgraded. After install it wanted a reboot so I did, but the phone never came back. It would start to boot for a couple of minutes but never make it to the desktop. I tried a battery pull with no change.
I ended up reloading the OS (latest Verizon 4.7 release) and all my apps and the phone was fine.
Today I got a message saying, of course, "a new version of messenger is available..." so guess what I did?!?! Yep, and bricked the phone again, it's just in a reboot loop. No error messages, it just constantly reboots without ever making it to the desktop.
I did some searching but haven't found much on this exact problem. Anybody have any ideas? I guess for now I will just avoid the new messenger as I don't really use it that much, but it would be nice if it worked.
TIA

You don't have to have it (the 5.0.0.57 version of BBMessenger) loaded, if you used it much you would see the advantages.
But, If you don't use it, don't worry.
I think there is likely some third party app conflcting with you, but that is another whole long drawn out search .
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
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[P67a-GD65] [Ivy] Infinite reboot loop after flash

MSIHQ: Information detected by MSIHQ Tool ver: 1.25g
MSIHQ: Report generated in Tue 01/01/2013 at 13:31:41.33
Mainboard: P67A-GD65 (MS-7681) - CPU i5-3570K
PCB Version: 2.0
BIOS Version: V4.2
BIOS Date: 7/16/2012
Attempted to upgrade to https://forum-en.msi.com/index.php?topic=164135.0
Due to the inability to hold any overclocks with any voltage besides auto, and because the Windows MSI control center wouldn't keep settings on startup.
Installed the forum flash tool on a USB drive and it wasn't bootable.
Tried with another flash drive and it wasn't bootable.
Used the on-BIOS tool to flash the BIOS
Flashed, rebooted, and began reboot looping.
Cleared CMOS - nope
Removed battery and cleared CMOS - nope
Removed all but one stick of RAM - nope
Is it bricked? If so, how do I get a replacement/repair?
Edit, was perusing the forums and found this:
Forum flasher defaults to looking for zip files, if you pick rar from the drop down it should accept the file just fine, if you don't use method 1 you won't get the ME flashed.
It's lovely that that's documented and pointed out in the flashing tool's post, and it's rather odd that all of the BIOSes are saved in .rar archives if the flasher looks for .zip. I used method 2.

Quote from: Svet on 02-January-13, 04:35:53
You should use "Fix My USB key" Tool's option 1st before prepare the stick if you having troubles booting from the USB key.
I realized that after the fact.
have you done >>Clear CMOS Guide<< with power cord removed and leave 1 memory stick only in 1st DIMM close to CPU socket?
I just did that, and it unfortunately continues to loop.
I guess I'll get it packaged up and into the mail. Thanks for the help guys.
When I do get it fixed, what BIOS will it come with?

PRS-T1 stuck in infinite reboot loop after failed firmware update

Hi,
I tried to update the firmware, but failed when updating to version 1.0.07.05070. Tried to 2 times. The first time it failed I simply tried again. The second time, it took a lot longer to reach the failed to update message, but it did cause the ereader to reboot.
Now, it's stuck in an infinite reboot loop on the "Opening book" page. The progress bar on that page stays completely empty, lasts for about 30 seconds, and reboots again. This will go one until the battery is dead or indefinitely if plugged in.
I have tried pressing the Home + Menu buttons, but they seem to have no effect.
Please advise if there is anything I can try to revive it?
Thanks in advanced.
David
Solved!
Go to Solution.

Kiroken,
Here is what I have observed:
- After a hard boot (reset + power button during 3+ seconds), if I don't do anything, it will reboot every ~30seconds.
- If I press and hold the Home and Menu buttons, no effect. The same as if I didn't press anything.
- If I press the Forward + Back buttons (2 & 4), it does not reboot after 30 seconds. Instead, the orange light on the power button blink every ~2-3 seconds.
- Any other key combinations that I have tried have no effect.
I have tried with and without several rescue sdcard. No difference. No improvement. In every case, the computer never sees the reader. If plugged into the power outlet, it seems like the battery charges alright. It does not appear to charge if plugged into USB port.
That's all I know. If I can't fix it, I might be forced to turn it into a coaster or maybe a cutting board for the kitchen.
David

IPod touch 4g 6.1.6 stuck in reboot loop after trying to restore

My ipod touch 4g has a really bad battery and only works if you have it plugged in and charging, but I've never had this problem before. I unplugged it from where it was charging and it died, of course. But when I plugged it into my computer to sync it, it started an endless reboot loop with the apple logo. I tried putting it into dfu mode and restoring it, I've tried doing it on three other macs, and the I've let the battery drain since it dies when I unplug it. Still dont know what the problem is. I cant take it to apple cause I dont have apple care on it and they cant help because the battery doesnt work anyway. Help is much appriciated.

See if y misse anything here:
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- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order. You do not need AppleCare and it is free.
Apple Retail Store - Genius Bar

Reboot loop after software update

My phone is also in constant reboot loop since the update. I tried deleting app after app with no luck. What is going on? Is there anything I can do? I also have tried the master reset, I highlighted recovery pressed the volume up and it went into reboot loop mode again. Any suggestions??

I know its frustrating to have a phone that is rebooting constantly Jimlpn. I'm sorry the steps provided in the other thread did not work. Is your phone damaged? Replacing the phone may be the next step. You can also take your phone to a corporate store location for a hands on evaluation. Is your phone under the 1year manufactures warranty and do you have insurance?
KinquanaH_VZW

Apple TV 2 Reboot Loop After iOS 5 upgrade.

OK, here's the deal... I upgraded to iOS 5 on my Apple TV 2 and now all it does is reboot. It never makes it to the menu, just starts up, shows busy icon and after a minute reboots again. Have tried restarting with menu + down and unplugging overnight and plugging back in. I do not have a Windows of Mac Machine (ie no iTunes). How can I resolve this issue so I can start enjoying my Apple TV 2 again?

Thanks for the answer but I had already read that when I researched before posting a question. I can buy the cable but I'm not going to buy an operating system just so I can install iTunes which is what the instructions you linked to said to do. I was looking for a solution either via remote control commands to the AppleTV device or a solution of plugging in the AppleTV to Ubuntu to cause the reboots to stop. I guess since I'm not getting any other replies, it's just not possible which makes for a bummed out Apple Customer. The only reason I bought the AppleTV over the Roku was because I already had an iPod Touch to connect with it and I thought they had better quality control. I guess I made the wrong choice. Thanks for trying to help anyway.

Solaris reboot loop after recommended patch cluster

Hi,
I have a problem with my solaris 10 x86 install on my intel notebook. after installing the latest recommended patch cluster and the necessary reboot my latop stays in a loop.
one of the last lines I was able to see:
panic[cpu0]/thread=fec1d660: boot_mapin():No pp for pfnum=20fff
fec33b4c genunix:main+1b ()
skipping system dump - ....
rebooting...
any ideas ?
cu+thx

This horrible patch caught me out too. I found this and it fixed my problem.
http://weblog.erenkrantz.com/weblog/software/solaris
<snip>
[...at the Solaris boot prompt; enable kmdb, debugging, and single-user
so that you can remove the patch and reboot...]
boot -kds
[...wait for it to boot...]
physmax:w
:c
[...you'll see 'stop on write of'...]
physmax/X
[...you'll see something like the following line:
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this is a hex number; add one; so if you see bff7f,
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physxmax/W bff80
:c
[...system will boot and go into single user mode...
now, go toss those patches...]
patchrm 118844-19 120662-03 118345-12 118376-04 \
118565-03 118886-01 119076-10 118813-01 \
118881-02 120082-07 119851-02
shutdown -i6 -y -g0 "sun should test their patches"
</snip>

IPod Touch 4th gen stuck in reboot loop after attempting to update to iOS 6.1.5

Hi.
I have my iPod Touch 4th Gen (iOS 6.1.3)....I plugged it into my computer, it said there was a software update available. I click ok, it goes through all of it's stuff, gets up to Verifying update with Apple, and then I get an error message.
"The iPod 'iPod Touch 4' could not be restored. It is not eligible for the requested build."
I know this has something to do with Apple not signing the package, but I got iOS 7.0.4 on my iPhone today and it worked fine.
Thanks for all of your guys' help,
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Try what you have not yet tried:
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- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

IPad 3 reboot loop after iOS update

Hi,
I have updated my iPad 3 to the last 6.1.2 version and since then it just reboots automatically every two minutes.
I have tried to restore it but now it is impossible to activcate the device from my Wifi or even when connected to iTunes ( it says it can't connect to apple server). In the mean time the iPad just keeps on rebooting every so often.
What to do?

Try this:
Unable to update or restore
http://support.apple.com/kb/HT1808?viewlocale=en_US

Macbook air is stuck in a reboot loop after running Software Update. It looks like a firmware update is failing.

I have a first generation Macbook Air running Lion, and just ran software update to get the latest version of iTunes. It appears I may have gotten a firmware update mixed in the bunch, and now it keeps trying to run the update at boot, failing, and shutting down.
I can start the restore partition, and the system appears to function, but I cannot figure out how to abort this failing update so I can use my system, and determine which update is breaking it and why. I've tried resetting the firmware, but that didn't change anything.
There's nothing, not even a the CD drive plugged into the Air, so it's not a peripheral problem.
I could restore from backups, but that seems like a very brute force way to get rid of a firmware update loader.
Does anyone know how to disable these little beasts?

Restart the Air while holding down the shift key, this is safe mode. Once in to the login screen, login then hold the shift key again. It will disable login items, which can be the cause of startup problems. Remove all your login items from your user accout and try a restart (Note the login items if you need to re-add essential ones later). If it all works well, then keep an eye on third party startup items, they will cause you grief!

Re: MSI H61m s20(G3) reboot loop after changing settings in BIOS!

Yes i have tried disconnecting the ssd, but still not entering BIOS, stuck on entering setup

well done as well

Laptop fan runs all the time, broker runtime cpu usage after Windows 10 final upgrade

ENVY 17t-J100 Leap Motion, 16 GB RAM, i7, SSD primary, HDD secondary drives. Avast antivirus free. Windows Firewall. The laptop had Windows 8.1 and everything was great. I did the Windows 10 Home free upgrade on Day 1. Everything seemed fine. Fingerprinter reader and everything works. Great. But then I noticed that the fan was always running and the left side of the metal casing gets hot. In task manager heat map sorted by CPU usage, Broker Runtime is at the top. Not much ram, about 10 MB. But the CPU usage is always 20% and higher. Doesn't seem like much. But it makes the fan run all the time and the laptop heats up with it running all the time. Anyone else seen this? General internet searching shows this has been an issue with Broker Runtime since Windows 8 and not unique to any brand of computer. But it wasn't like this when I was using WIndows 8.1 One forum said it was the P2P Windows update feature and my laptop was sharing updates. So I disabled that and rebooted. No change. Now I see some people saying it is the Live Tiles features in the Start Menu. But I had live tiles with the WIndows 8 menu and no issues. The only way to disable Live Tiles globally is to edit the registry, and I shouldn't have to do that for this. And I like Live Tiles. So not sure that really is the issue either.

hockeycanuckjc wrote:
Have all Windows Updates on Windows 10 been applied since installing it? I know there are people weary to update Windows 10 since there have been a few news reports with some people having the infinite reboot loop after installing a particular update For me, yes. All updates applied and automatic updates enabled. This Runtime Broker issue has been there since the upgrade and all updates to this point.

Recovering media from reboot loop

My Droid Incredible is stuck in a reboot loop after encountering the 2 AM reboot loop issue (this used to resolve itself after I did a hard boot in the morning). I have tried:
-Pulling the battery for 30 minutes
-Going into safe mode (doesn't load, just reboots)
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While not a "safe mode" there is DFU mode. This pretty much puts a stuck phone (if not too stuck) into recovery mode which will cause iTunes to start all over with it and restore it.
http://www.google.com/search?source=ig&hl=en&rlz=&=&q=iphonedfu&aq=3sx&aqi=g1g-s1g1g-sx7&aql=&oq=iphonedtu&gsrfai=C3V7Ho_4ITPjKAZy2yAS3ltjvBgAAAKoEBUQnAAi
You can restore from your last back up and then sync back what you want.
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HT6114 Reboot loop after 10.9.2 upgrade

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