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[Q] all white screen - even after nvflash restore. Need Help!

My GTab went white today sometime between my 1.75 yo daughter watching sesame street youtube videos and me wanting to check mail. As far as I can tell there was no major trauma (drops, kicks, stabs, etc.) and I haven't flashed anything in weeks. (VeganTab is great eh?.)
Configuration:
VeganTab 5.1.1 + Security Patch
Symptoms:
White Screen under all circumstances, power up, eventually goes gray after about two minutes. No response from buttons other than power.
Removed Micro SD card.
White screen on Power & Vol+ , I don't get the recover screen here
Power & Vol- White screen then black (like normal nvflash mode) so I followed directions for nvflash restore using the bekit image plus clockwork.img instead of part9.img - not my first time using nvflash, it looked like everything went fine., except I'm back to a white screen.
I opened the case and pulled the battery, no dice.
I pushed the button (dunno what that does) the back light flashed, but that was it.
I've run out of ideas, so at this point i'm thinking it must be a hardware issue. I didn't find any similar threads on xda.
Anyone seen this before?
Thanks!
Kyle

I can get a screen image via HDMI out on the base station, so it's got to be hardware. After getting past an e-mail error message with an external kb, I was able to prove that the touch screen does in fact work. Impossible to use w/o a cursor tho.
Any ideas would be appreciated, otherwise I'll have to call Viewsonic Tech Support on Monday.
Thanks,
Kyle

Picture attached

Had the same issue while playing angry birds. I am pretty sure that it is hardware related so I returned my gpad.

Meh, I was afraid of that. I'm past the return date on mine- got it in November I think. I just ordered a B101AW06 off the bay, I figure I'd spend half that on shipping the gTab back...

WP7 microSD Replacement "Delays", "Write Errors"

I put my 32 GB microSD card through a ****load of tests on my desktop to ensure it works (http://www.iozone.org/ FYI, increase to like 30 GB and let it run all night on your desktop). It passed with flying colors, not one skip. I did this because Newegg reported a bunch of QA issues with the 32 GB microSD cards. I wanted to ensure my Wintech card was working flawlessly. It was in my PC.
When I got it in my HTC Arrive WP7, upon the first few videos syncing to the device, Zune reported that my device has stopped responding. It did this a few times after connecting and disconnecting. It even reported a write error at one point. Bad sign...
Then, as I was using the phone, it seem to have 'delays' from starting applications. "delays" from accepting things I click on, before taking action. "Delays" when hitting the back or start button. All of these delays showing a "black screen" for like a full second. Nothing like the rock-solid smoothness I experienced with the phone stock. Something was a miss, and that annoyed me enought o investigate. Reminded me of my HTC Android device (oh *snap*).
What I ended up doing was doing another hard reset, but still had the issues - even before the syncing. There is another option to do a hard reset at the initial bootup. So that's what I was attempting, and here is where I found Calculate CRC Checksum!
Inline Pictures are from this thread
1. With the device powered off: Press the power button and quickly press-n-hold both VOL UP and DOWN volume keys. You will be prompted with a white screen and writing.
2. Go ahead and press VOL DOWN to restore to factory defaults.
3. Let it cycle and press-n-hold VOL UP and DOWN again to get back. Back at the white screen again, press VolUp this time.
This forces a Calculate CRC Checksum to begin. This takes like 30s or a minute or something. Wait until it is done, it will tell you witha benign message of some sort.
EDIT: Turns out, I still have issues with random reboots.

After a lot of research, I've found that you cannot get the fastest "Class 10" kind of cards. That actually ends up hurting you because manufacturers end up sacrificing random access times in order to get the faster read/write.
With our WP7, it's all about how fast you can find the data - not how fast you can read the data.
I've now ordered a Sandisk 32 GB Class 4, as sandisk seems to be the gold standard - and the OEM card is a Sandish 16 GB Class 4.

I'm experiencing exactly the same issues with an SD-Card from Toshiba (Class 4).
Please let us know if it works with the SanDisk Card.

JoelWP7 said:
I'm experiencing exactly the same issues with an SD-Card from Toshiba (Class 4).
Please let us know if it works with the SanDisk Card.
Click to expand...
Click to collapse
I will let you know!

[Q] Large file transfers and screen sleep

I have experienced an issue with my TF and I'm writing to see if anyone else is having the same problem. I noticed this when I began to play with chrooting Ubuntu. I created a 4GB image and when copying it from my external SD card to internal /sdcard/ the transformer would "lock up" with a black screen and I had to power cycle to bring it back. After several tries I managed to get the file copied and I successfully chrooted into Ubuntu. I then attempted to apt-get install some software (around 600MB worth) and the TF locked up again. At this point I was convinced there was an memory or I/O issue.
On a hunch, I changed my settings to prevent my TF from sleeping (default is turn off screen after 1 minute). After making this change, I was able to copy large files with no lock ups, install lxde and tons of other software and run it, and the device behaved as expected. As soon as I re-enabled the sleep setting, things would lock up again on long transfers.
So in my experience if the TF sleeps during heavy I/O, it locks up. Not sure if this helps others who have experienced the issue of the TF not waking from sleep, but this definitely was the case for me. Has anyone else run into this or something similar?
This happened running Prime 1.4 and 1.5.

had problems copying files from ext sd to internal sd
What I experienced last night, I was trying to copy a folder (5.4GB total with individual file sizes approx. 10MB each) from the ext. sd to the internal sd and the transformer just shut off at about 20% of the file transfer don't remember if it was timed to coincide with the screen timeout though . I tried to reboot the device and it went into a boot loop. I had to use the 10 second power button push to turn it off then about 20 seconds later it was turning back on by itself and went back into the boot loop, kinda freaked me out, I just got the TF101 a few weeks ago. I forced it off again with the power button. the unit did not seem to be hot, the sd card was a bit warm when I removed it, but not hot. About 30 minutes later I tried rebooting again but into recovery first. It did finally go into recovery, and I wiped the cache, dalvik cache and did the fix permissions, then rebooted and so far it seems to be doing ok. I ended up attaching the USB cable and moved the files that way, did not want to chance killing the TF101.
and yes the screen did go to sleep (set time is 2 minutes) I don't know if this is the issue, but if I try any large file moves between the ext sd and internal sd, I will first disable the screen timeout and see if that helps
I am running the Prime 1.5 ROM with clemsyns kernel, but otherwise nothing special

[Q] Screen freeze

Over the last couple of days I have been having an issue with the sensation. I can boot up the phone and have full access to the boot loader.
The problem occurs when I leave the phone in standby for a while. The phone will become un-responsive and wont turn ont at all.
I was running the latest RCMix rom and everything was fine. I then decided to install j4n87's tweaks I know it is for a newer base but I just wanted to try it. Ever since I installed the tweaks the phone hangs when the screen is turned off.
I have tried full wipe and reinstall of everything but cant fix the issue.
Even noticed that if I pull the battery and power it back on the screen will stay black. You can hear sounds see button lights and power light but nothing on the screen. It then takes a couple of attempts of using adb reboot to get the screen to come back on again.
Any Ides.

Just tried flashing stock rom fro ruu same issue.
Edit 1:
Hmm I am wondering is my SD card causing the issue. With it in the phone when the phone is on stand by the freeze will occur in a couple of minutes. On the stock rom with the SD card out I am able to leave the phone in stand by for 10+ minutes and it is waking with out any issues. I will try it with ICS to see how it behaves.
Edit 2:
Interesting: it does look as if it is the SD card causing the problem. I restored my RCMix ICS rom and left the card out of the phone, with the phone on. I left it on standby for half an hour and it woke up with out any issues. Looks as if I could be getting a new SD card!

No apps, almost no respons

Hi there.
I got a stock K1 with lastest OTA system.
I normaly don't shut it down because it will do it itself after 6 hours.
Yesterday my last use was Netflix (steaming to chromecast)
Today the shield would not boot and i put it on a charger, no symbol in display but i let it there for about an hour.
Now it almost won't boot up:
Long time bootscreen, no apps to be found, almost no respons at softbottons.
powerbutton wont show a menu.
How to factory reset in this case?
Best regards
UPDATE: the Micro SD functioning as internal memory seemed te be corrupt