Phone turns on but black screen - T-Mobile Samsung Galaxy S II SGH-T989

I was at the store and my phone was about 5% battery life, so I turned off my phone. And got home plugged my phone in the charger and came back couple minutes later. When I turned my phone on, I got the samsung logo then nothing else. I feel the phone vibrate when turning on. Then I heard my phone unlock but the screen was black with multi-color dots all over the screen. The LEDs, home, back, etc buttons light up fine, hear the volume when I turn it up but just get this black screen with those dots.
Yes I did flash an rom but thats been weeks ago and never had an issue. Its the carbon 4.2 rom.

V1nom said:
I was at the store and my phone was about 5% battery life, so I turned off my phone. And got home plugged my phone in the charger and came back couple minutes later. When I turned my phone on, I got the samsung logo then nothing else. I feel the phone vibrate when turning on. Then I heard my phone unlock but the screen was black with multi-color dots all over the screen. The LEDs, home, back, etc buttons light up fine, hear the volume when I turn it up but just get this black screen with those dots.
Yes I did flash an rom but thats been weeks ago and never had an issue. Its the carbon 4.2 rom.
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can you get it in recovery

I tried but nothing.

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HTC TP2 Rhodium Screen Won't Stay On

I have a Tmobile HTC TP2 flashed with Energy Rom and it had been working fine for several weeks. Today the screen randomly turned off and the red light was on. I couldn't soft reset or anything, but removing the battery and putting it back and powering up worked. However, it only stays on for about a minute before the screen turns black again with the red light coming back on. Anyone know what is going on or how to fix this??
jdx915 said:
I have a Tmobile HTC TP2 flashed with Energy Rom and it had been working fine for several weeks. Today it randomly turned off and the red light was on. I couldn't soft reset or anything, but removing the battery and putting it back and powering up worked. However, it only stays on for about a minute before the screen turns black again with the red light coming back on. Anyone know what is going on or how to fix this??
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Click to collapse
Red light ... do you mean the left hand light? That one is orange on my TP2. Is the unit hot to the touch on the back panel?
Yes the left hand light...after looking at it again it does appear to be orange, not red. The back panel does not feel hot, and when the screen goes black, the orange light appears to flicker a little bit as if there may be some kind of power issue or something (but is mainly solid orange like it is when it's charging), I'm not sure. I don't believe it's a problem with the actual battery, because I've tried using a different battery and have gotten the same results.
Edit: It is now staying on longer maybe a few hours compared to the minute or so it was staying on yesterday, but with the same turning off problems. Except I think it is just the screen that is turning off because if I play with the volume buttons, eventually I can hear the volume up/down sounds.
After searching through some forums, it seems it could be a 'Sleep of Death' problem...

Bricked? or Defective phone?

I'm running a stock EVO and yesterday the phone decided to shut off on me. Right after the screen went blank the phone vibrated five times and the led on the front of the screen began to blink green until the battery was pulled. Now every time I try to boot up the phone it will start up just fine and at exactly 2:14 of awake/on time the phone will freeze, go black and vibrate five times then the flashing green led. I have no idea what is going on with it. Anyone else experience this issue?

[Q] S3 shutting off

So earlier yesterday I was on my phone (T-999 S3, rooted, PAC-man rom) when suddenly the screen just went black and my phone turned off. It didn't even reboot, it just stayed off.
I thought it was a little odd, so I tried to turn it back on and it would get to the logo screen and the screen would go black and the phone would shut off, and it wouldn't reboot like in other cases.
I tried to go into recovery but it would turn off after the logo popped up, I cant even get into download mode because after I press volume up to initiate download mode, it turns off. Ive owned this phone for about 13 months and this has never happened to me before. What should I do?
androidcyborg007 said:
So earlier yesterday I was on my phone (T-999 S3, rooted, PAC-man rom) when suddenly the screen just went black and my phone turned off. It didn't even reboot, it just stayed off.
I thought it was a little odd, so I tried to turn it back on and it would get to the logo screen and the screen would go black and the phone would shut off, and it wouldn't reboot like in other cases.
I tried to go into recovery but it would turn off after the logo popped up, I cant even get into download mode because after I press volume up to initiate download mode, it turns off. Ive owned this phone for about 13 months and this has never happened to me before. What should I do?
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Click to collapse
This is an issue with the power button, which is exactly what I'm working on right now for my wife's phone. I ordered the button and received it a couple days ago. About to install it now.
Good way to test is remove the battery, then put it back. If it tries to turn on by itself, then it's almost certain it's the power button.
Let us know how easy the replacement goes in! Good luck on it!
Sent from my SGH-T999 using Tapatalk

Screen Doesn't Appear to Work

I was on a phone call with a friend when I noticed that the screen wouldn't turn on anymore. After the call was done, I popped out the battery to shut it down.
When I take out the battery and plug the phone via usb charger, the screen turns on and is blacked out. When the battery is in, and I 'turn on' the phone, there is a very slight vibration, and after some time the phone blinks that red LED light like when I have a gmail waiting--it is as though the phone really is on and active, but the screen isn't getting signal.
I'm guessing that there's a loose connection somewhere.
Any suggestions?
I disassembled and reassembled. Didn't work initially.
Left my phone alone for 5 minutes after it booted with no screen signal, and then I press the power button, and it turned on.
So weird. Seems like I'd better back up my stuff while I can.

LG G4 not powering up

My G4 H811 suddenly not powering on.
It was just working fine. I turn off the screen and then a minute later I try to turn the screen on by pressing the power button and the screen is not turning on. I made a few attempts and tried to power it off and on. That's when I feel the phone vibrates but normally it is just a short vibration before the screen on but the vibration never stops and screen is not on. Pressing the power button does nothing. I have to take out the battery to make it stop (vibrates for about 30s). After that, phone won't even vibrate.
I left the phone charged for 2 hours. The charge indicator never turn on but I feel a little warm just like when phone is charging. Basically, now phone will not turn on. What can I do?
There were a couple of occasions since yesterday that I managed to power on the phone to see the LG logo. But it stays there for about 10s and the screen went blank. Looks like my phone is done for.

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