Yoga 830lc battery fluctuates & white flash while folding stand

1. while using I saw a strange battery fluctuation from 89 to 90% and then back to 89% without charging and it happens around 5 to 8 times in 100% utilization and sometimes sudden drop from 35 to 31.
2. I'm seeing white flash at left bottom of the screen while folding (changing mode) the stand
Kindly let me know is this a hardware issue

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How to remove white fade while navigating between pages?

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That is so strange, I just tried on my OS X Safari and WIN 7 Chrome and everything just fine, but when I'm trying on same OS X Chrome it has white flash while transitioning through navigation. Thanks anyway mac_heibu!

Cannot get into mac. I get a white screen and flashing file folder with question mark inside. What can I do?

2012/13 MacBook Pro froze up, so I did a hard shut down. Now, when I try to start up, it makes 3 unusual beeps, then I get a white screen. After a couple minutes, a flashing file folder with a question mark appears and remains. What is wrong and what can I do to fix it.

Three beeps usually means a RAM or RAM slots problem. The Question Mark means there is no bootable system found.
A flashing question mark or globe appears when you start your Mac
Question (?) Mark, Blinking Folder, or Gray Screen at Startup
These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
A flashing question mark or globe appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by one or more of these:
a. Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
b. Boot drive's directory has been corrupted - Repair with Disk Utility.
c. Critical system files are damaged or deleted - Reinstall OS X.
d. The disk drive is physically non-functional - Replace the hard drive.
Note that the information I have provided is what Apple recommends, If other users suggest different solutions than found here, then be sure what they recommend does not impact on your warranty, if any, or ability to get continuing Apple service.
Please don't start removing drives or changing cables unless you know what you are doing and have exhausted other non-invasive alternatives outlined here. If you perform any work yourself that is unapproved by Apple, then you will void any warranty you may have and lose all further Apple Support.
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD. Simply boot from the Recovery HD to perform the above.
Reinstall Snow Leopard Without Erasing The drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Reinstalling Lion/Mountain Lion Without Erasing The Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

My iMac has a white screen with a flashing file folder with a question mark in the middle. What does that mean?

My iMac is completely unresponsive. Whenever I restart it, it's just a white screen with a flashing file folder with a question mark in the middle. What does this mean?

this means the mac cannot find the startup disc. which more times than not means you need a hdd replacement.
try starting holding the option key, then using utilities try to repair the disc.

Flashing ? folder on white screen upon start up

i have a 2008 macbook unibody and when started up i get a white screen with a flashing ? folder. I have tried some suggestions i found here, like holding the c button as well as holding the option button. when i hold the option button i get a flashing spinning globe on a hard drive. nothing else happens, i cant choose a drive or only thing, but i get the cursor. someone please help. oh and i dont have the install/reboot discs either.

The flashing ? mark can mean several things.
One the starutp disk is failing or has failed.
A flashing question mark appears when you start your Mac
You mentioned holding down the Option key. Theoretically, that would prompt the Startup Manager window where you can select the startup disk but if that didn't work, then you may be out of luck.
If the startup disk has failed, you wouldn't be able to repair the startup disk using your install disc anyway.

I have a blank white screen with a flashing file folder

What do I do if I have a blank white screen with a flashing file folder?

That folder with the question mark icon means that the MacBook can't find the boot directory. That can either mean it can't find the hard drive or the hard drive data is somehow corrupted.
Put your install DVD into the drive and reboot. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option key until the Install Disk shows up). That will force your MacBook to boot from the install disk in the optical drive.
Once it has finished booting and you are at the Install screen launch Disk Utility from the Utilities menu. Is your Hard Drive in the list on the left?
If it is then select the First Aid Tab run Repair Disk and if that repairs any problems run it again until the green OK appears and then run Repair Permissions.
If your hard drive isn’t recognized in Disk Utility then your hard drive is probably dead.

IMac won't restart. Agreed to updates, rebooted and now only getting a white screen w/ flashing file folder w/ a questions mark?

I Agreed to recent updates, restarted my computer and all I am seeing is a white screen w/ a small flashing file folder icon w/ a question mark on it? I've already unplugged, turned on/off and disconnected/reconnected Apple airport?

Hi barnstorming7,
Thanks for using Apple Support Communities. Based on what you stated, it sounds like the computer boots to a flashing question mark. I would recommend that you read this article, it may be able to help the issue.
A flashing question mark or globe appears when you start your Mac - Apple Support
Cheers,
Mario

My MacBook Pro just turned itself off while installing Windows 7. It has now got a black screen with a white flashing bar in the top left corner...what can I do?

I was just installing windows 7 onto my MacBook Pro. I selected to have 200GB for Windows and the rest leave for Mac.
I clicked install and the bar filled up as it should do. However, once the install had completed, my MacBook turned itself off. I assumed this was normal. Now, my MacBook has a black screen with a white flashing underscore in the top left corner.
What is wrong and what should I do?

Hold down the Option key when starting up then on the sceen that comes up select Mac OS X to boot from.
The Win 7 install didn't go well and is hung in some way. You should use boot camp assistant to remove the win partition and start over.
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White Screen Flash while in use

So I tried doing some resarch about a white screen, but I all I keep finding is a white screen issue when you boot the macbook and that is not my problem. For the past week I have noticed that when I am using my computer the screen will flash to white for about 3 second then go back to the screen/page I was working on. At first I brushed it off, but it has happened about four times in the past week. The main programs I have been using are Safari and Microsoft Word for mac. I have also noticed that my computer has been running slower than usual. I have researched that and tried many fixes like getting files off my desktop/empting my cache among other things. I have not updated to Lion, but all of my software is up to date.
My macbook is 3 years old and just wanted to see if anybody has any idea what white flashes mean.

Create a new account, name it "test" and see how your apps work in that User acct? (That will tell if your problem is systemwide or limited to your User acct.) This account is just for test, do nothing further with it.
Open System Preferences >> Accounts >> "+" make it an admin account.
If the problem is present in the test account also, then it is systemwide. In this case try repairing this with the 10.5.2 Combo Update This is a fuller install, as opposed to an incremental "delta" update so it should overwrite any files that are damaged or missing. It does not matter if you have applied it before.
Remember to Verify Disk before update and repair permissions after update from /Applications/Utilities/Disk Utility.
If the problem does not appear in the test account try starting in "Safe Mode" (It will take a bit more time to startup because it runs a directory check first).
If that works go to System Preferences >> Accounts >> Login Items and remove them. Boot normally and test. If there are still problems, go to ~(yourHome)/Library/Contextual Menu Items and move whatever is there to the desktop. Then do the same with /Library/Contextual Menu Items. Lastly, try moving /Users/Home)/Library/Fonts to your desktop and restarting.
Log out/in or restart, if that sorts it start putting items back one at a time until you find the culprit.
Let us know.
-mj

White Screen, Grey Folder with Question Mark and no USB

Hello
I have a iMac, that is in a classroom of similar machines, they are running os v 10.4.6 (ish).
The mac in question had been reported with a fault so i went along to check it and this was a new fault for me.
When the mac boots, it bongs the hdd starts up and then a black white screen appears after a few minutes this changes to a white screen with a flashing grey folder with a question mark.
now reading on the forums, internet etc. i have found that maybe i should boot to disk. tried this but not disk activity.
next i read to boot into verbose mode at which point i find that the USB ports dont seem to be running so i can use a keyboard.
Anyone any ideas how i can troubleshoot this problem or why the problem occurred in the first place?
Thanks for any help offered.

This error indicates either that the internal HD has physical problems, or there is corruption on the drive (a failing directory or corrupt system files). You should boot from the Mac's original installation disk, run Disk Utility from the Utilities menu and do Repair Disk on the internal drive. If this fails to recover the drive, you may have to reinstall the system.
Matt

Oracle forms display bright white flash when transitioning between forms.

We recently migrated an application from Oracle Application Server to WebLogic and we are noticing that in the WebLogic environment while transitioning between forms there is a quick bright white flash that has caused several complaints. We are not sure if this is related to a performance issue which may be preventing the form from painting quick enough or if there is a configuration problem somewhere. Has anyone else seen this behavior?
We are running WebLogic Server Version 10.3, Fusion Middleware 11gR1, and Oracle DB 11.2

Unfortunately we don't have any errors to work off of. The application works fine, it's just that their is a very short delay when transitioning from one form to another and during that transition the whole form turns bright white which has caused users to complain that it could cause an epileptic seizure. I assumed maybe there was some performance tuning/caching that could be done to make it so it loaded quicker. Our DBA team recieved a response from Oracle support stating that although the forms themselves are relatively unchanged, due to the underlying software changes in 11g we are to expect some differences compared to previous versions. We have since set background in formsweb.cfg to use a light grey image which seems to be more acceptable for our users.
Edited by: user4597705 on Oct 12, 2012 1:18 PM

Unique "flash question folder" problem, doesn't boost from either HD/drive

Hello, I am pretending to be a Mac expert to my friends (Please don't laugh at me, Cornelius, Douglas, Duane or others). One of my friends went to me with a iBook G3 with a classic flashing question folder on screen. I promised her I would fix it next day. But now I am stucked on it. I thought it would just be an OS issue. It seems it is more complicated than that. I tried to install 10.4 from DVD, by restarting while holding down "C" key. It did not boost from there. Fine, it might just be an optical drive problem. I dived into the book, replace the HD with a known-good one having OS installed. The book still won't boost. Fine, it might be the a bad connection between HD/drive to the mother board. So I threw in a good signal cable. Nothing I have done really helped the boosting issue. I think I have to bring the same non-working book back to her on Tues or Wed. So embarrassed. Maybe you guys can help me out? Thank you.

There is an article on the flashing question mark that might be helpful:
http://docs.info.apple.com/article.html?artnum=58042
It sounds like you might already have done more than was necessary, but it should be possible to get back in business. I'm not the one to advise you, as I am not all that experienced myself. But the more knowledgeable memebers of the forum should be able to help.
One thing--do you have all of the original install discs? If you don't, see if you can get them from your friend. You will probably need to have them on hand. Often people have to hunt for these, so you might be able to stall for a little more time while you get some answers from the forum. Also, the install discs will contain the Apple Hardware Test, which you can run and look for hardware problems.
Also, identify the iBook model more completely. Here's the article to find that out:
http://docs.info.apple.com/article.html?artnum=88039
Posting more detail will help others to advise you.
Good luck!

HT1379 need help- frozen mac w flashing file folder & ?

My mac is frozen. nothing but the white screen of death. tried troubleshooting w no luck.
Tried re-setting NVRam/PRAM and now have white/grey screen w flashing file folder icon and question mark.
Help!

Troubleshooting: My computer won't turn on
http://support.apple.com/kb/TS1367
A flashing question mark appears when you start your Mac
http://docs.info.apple.com/article.html?artnum=58042
 Cheers, Tom

My 80gb ipod isn't working.... black screen with white flashes

Got the 80 GB Ipod (with video) X-mas '06, haven't had many problems with it (except for the occasional freezing, where the standard "reset" technique has fixed it).
Was using it last night, the battery meter was pretty low. Turned it off and went to bed. Woke up, tried using it today, and it wouldnt turn on.
The screen is black, but every 5-10 seconds, there's a quick white flash. It has been doing this all day.
I've tried resetting it, charging it into my Windows USB port... nothing. The computer doesn't even seem to recognize it, and ITunes doesnt start when I plug it into the USB like it normally does.
The black screen/white flashing continues even when it's plugged into the USB.
Any ideas on what is going on? What should I do?
Thanks in advance.

Have you been through these?
The Five Rs.
If nothing helps, you can arrange online service here.
Service request.
Or you could take it into an Apple store and have them take a look at your iPod.
You can make an appointment by using this link.
Genius Bar Appointments.

Green battery indicator still flashing when battery is fully drained?

I'm currently calibrating my battery from my aluminum macbook (with removable battery) and drained the battery. The white front led isn't flashing anymore as expected according to the calibration guide.
However, after 2 days now I still see the battery indicator flashing 5 times when I press it. Does this mean the battery is not yet fully drained?
Quite strange because with my previous black Macbook, when the battery was fully drained, battery indicator on the bottom of the battery didn't flash when I pressed the button.

You really only need to let it sit for about 5 hours after it goes to sleep on its own. That will drain the power "enough". The blinking is normal as an indication that the battery is drained. Lithium Ion/Polymer batteries have circuitry which will prevent their charging if they discharge below a certain critical level. Once your machine has gone to sleep due to running low on power and you let it sit for about five hours after that, you can start to charge it up again. Basically, follow the instructions for calibrating the battery. You don't want the battery to sit fully discharged for any extended period of time.

Yoga 830lc battery fluctuates & white flash while folding stand

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