Here's the problem: when the TF boots into the OS, the screen cuts off after the boot animation. I can see it fine in CWM also.
I was running the Prime ROM with HC 3.2. This ROM has worked quite well for months. Earlier this week, I was going to boot it up and use it while riding in the car. The screen was fine during the boot animation, but as soon as it hit the OS, it went blank.
I hit the power button and could tell that was working, because I could see a quick flash of backlight when I pressed it. But no screen display.
So I saw that Revolution 3.0 was released, so I installed it. The screen worked fine through CWM and everything was fine up until I installed the OS and went through the initial bootup and setup process in ICS.
When I turned it off and back on, it wouldn't come on. So I don't really know where to start. I assume this has something to do with the backlight sensor, and I have looked around here for some references, but nothing comes up.
Is there a way to disable the backlight sensor completely to test my idea? Anyone have any other suggestions? Thanks all.
My TF was serviced by ASUS back in the summer after I dropped and bent the bezel. They put a new power button daughterboard and bezel on it.
I just wiped the tablet with CWM and it let me reboot and go through the ICS setup steps again.
Screen went dark the very instant I touched the brightness slider control...
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So i am at home playing with my Xoom fine before going to work. I place it in it's padded bag and get in my car to go to work. No bumps, no bangs, no drops. I get into work and pull it out to play with it some more and the screen is dead, or so it seems. Backlight not coming on. So i think it is dead and force a soft reboot, still can see nothing, i try a few more times, finally i notice if i hold it in just the right light i can see the screen fine, it was rebooting, but the backlight wasn't showing.
I let it finish booting and if i hold the screen in just he right light i can see the live wallpaper moving, so i know the screen is on and working, i can click icons and everything, but the backlight still won't light up. Had to stumble my way to brightness in settings, really hard to do when you can barely make out the screen. Set it to auto, nothing, set it to fully bright, stil nothing.
Is this a hardware issue? Or could i have some random software glitch? I rebooted three times now, hoping it would change. Nope. Stock software, no root, nothing. Had it for almost a month now. This sucks.
A couple days ago the screen on my transformer stopped working it would no longer display anything. I've restarted it many times and nothing ever displays not even the boot sequence. It displays perfectly via hdmi and the touch screen works there is no physical damage to the tablet. It was running prime 1.5 but I have re-flashed it back to stock 3.1 hoping that it would fix the problem but it did not. Has anyone had any similar problems and if you have were you able to resolve them with having to RMA. If any information is needed like logcats or anything let me know and ill be able to get them once I get home from work.
vlara said:
A couple days ago the screen on my transformer stopped working it would no longer display anything. I've restarted it many times and nothing ever displays not even the boot sequence. It displays perfectly via hdmi and the touch screen works there is no physical damage to the tablet. It was running prime 1.5 but I have re-flashed it back to stock 3.1 hoping that it would fix the problem but it did not. Has anyone had any similar problems and if you have were you able to resolve them with having to RMA. If any information is needed like logcats or anything let me know and ill be able to get them once I get home from work.
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Did you check the screen brightness settings? Did you try turning it on in a dark room to see if the backlight still works? Seems odd to me that you see nothing yet you can still use the device's touch screen if connected to an external display.
yea ive tried adjusting the brightness setting/ turning on auto brightness both things had no effect. When it first started occurring I could faintly see the asus logo when it was turning on but no matter how dark it is now I cant see anything on the screen. thanks for the help hopefully we can figure this out.
Shine a torch on the screen (in a fairly lit environment) and see if you can make out anything on the screen. If you can see screen content then it means the backlight (or the inverter) is faulty. In any case this sounds to me like a hardware fault.
ok, weird issue.
Yesterday I came back to my TF having left it inmy bag for the day, and it would not turn on at all.
I tried various things and then decided that the battery must be totally dead.
I left it to charge over night, and come the morning was able to watch it booting.
However once It finished boot it goes to black screen. Pressing the power button sometimes gives a flicker of backlight and then goes blank again. sometimes it even gives a glimpse of the screen.
Plugging in the power sometimes gives a longer blink of the booted ROM.
I have tried a cold boot, a full data wipe and I have used NV flash to fully reinstall the ROM (Prime 1.8)
After the full reinstall I go through the Google initial setup process without a problem, as soon as the rom boots I am back to the flicker of screen going off..
Does anyone have any ideas??
Still got the problem, does this sound like hardware to anyone else?
if the screen doesnt work during boot it is hardware problem. flash ur rom again or wipe it
chatch15117 said:
if the screen doesnt work during boot it is hardware problem. flash ur rom again or wipe it
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Screen works fine during boot
Done both of your suggestions unfortunately, as I stated in my original posting.
I am going to try going back to Stock, and assuming its an app NOT restore any during the rebuild process.
OK - since the recent ota upgrade to ICS we've been having a few problems with the table touchscreen freezing - unfortunately now it seems to have got stuck almost all the time. Just at the moment, it is not responding at all to touch - just displays the lock screen when powered on, and then times out a little while later to black. I have to push power to get it back on - but the touch screen simply won't respond to unlock it. So far I have tried:
Holding down power until restarts - no effect - reboots still locked.
Using Vol-Down power on and doing factory reset - no effect - reboots into android setup screen touchscreen not working.
Draining power until it won't turn on. Then recharged. This worked! However...
After going through the setup process, resintalling apps etc., I hit the power button to go into standby. I then thought I'd go straight back in, but as soon as I hit the power button again, it wouldn't respond! Left it charging for a couple of hours, and turned on, this time got in - but same again - hitting the power button and coming straight back in, it's not responding again.
So I'm now back with a fully charged tablet that won't respond to touch at all. - perhaps if I leave it a few hours it might respond again - until it goes into standby!? The device is fully stock with WW_epad-9.2.1.11-20120221 (according to the screen at boot up when you hold down vol-d).
Is this likely to be software or hardware related? Do I need to send it for repair/replacement, or is there something else I can try first? Any help much appreciated. (Oh - I don't have external keyboard btw - so without screen it's pretty limited what i can do!)
Cheers,
Colin.
I have already encountered the same problem but with a cutom rom. to find my touch, I had to do a full wipe and new intallation.
I did full wipe using the Power/Vol-D but the touch screen didn't start working again until I let the battery completely drain.
Then I reinstalled everything (screen was working to begin with), however after I'd set everything up and reinstalled all my apps it stopped again.
Yesterday I managed to get an ota update to 9.2.1.17 (it started working for a short time). But then aftger rebooting again, it stopped again.
This morning it is working again, and I have uninstalled all my apps - just the core stuff on there now. For the moment it appears to be working (which is the longest for a while!) - going to see if it stops again while there aren't any extra apps installed...
TL: DR: Screen sometimes is totally black, but otherwise the screen seems to work fine. Sometimes the phone acts completely normal. Sometimes the phone acts completely normal, but the screen is tinted green, but only after it's booted up. I can access download screen with no issue, most of the time I can get into recovery with out a problem, but not always.
I'm brand new to the GS3, but I purchased it last week on ebay (described as fully functional) since my other phone has been giving me troubles. I received it last Thursday (5/15/14), and it seemed to work fine. I have not been able to activate it yet since I did not have 4G sim card, so I've just been playing with it around the house to make sure it works until I get my 4G card from Verizon in the mail.
So Saturday comes along, and I notice that the screen is all black, but makes the usual sounds when you touch the screen. I pull the battery, and boot it back up. The Samsung logo would come up, but none of the boot animation. Nothing after the Samsung logo. It seems that if I push the power button, the phone seems to be functional, but nothing comes up on the screen. Sometimes if I push the power button a bunch of times, I can get the screen to come on. The screen looked normal, and everything worked fine, until I hit the power button. Back to the black screen. I booted into recovery, cleared the cache and did a factory wipe, and it seemed to be completely normal for a while.
I've noticed that sometimes phone acts completely normal (proper colors, screen turns off and on as it should), sometimes it works normally but the screen is tinted green (power button turns off and on the screen as it should), and sometimes, the screen is totally black, but the touch functions work normally.
Since the screen always works at boot (I can see the Samsung logo clearly and with no color distortion, but sometimes the rest of the boot animation is gone, even though I hear the boot music), and there is also no color distortion in recovery or download mode, am I likely looking at a software issue?
It is not rooted, and completely stock on 4.1.2. EDIT:Baseband is VRBMF1.
I have tried to make my problem as clear as possible, but I will clarify anything if necessary.
Thanks.
I downgraded to VRBMB1 with ODIN, and I still seem to be having the same issue (screen goes black, won't come back on), although the green tint problem hasn't happened yet. As long as I leave the screen on, it works fine. I'm thinking that this might be a problem with the power button, although I don't understand why it would allow me into download mode with no issues, but trouble doing much of anything else. I'm probably going to be sending it back for a refund, but if anyone has any suggestions, I'm more than willing to listen. Thanks.