Galaxy s2 screen goes black and unresponsive after a while - Galaxy S II Q&A, Help & Troubleshooting

The title almost says it all,
If I leave my phone running for a while, even at idle, my Galaxy sII's screen sometimes goes black and the phone doesn't respond if I press volume buttons or the power/home button, the screen does not light up and it is as if the phone is dead, but it is running because my computer recognizes it upon plugging in and I can transfer files.
If I had music playing while the problem happened, the music continues playing but the screen is black and the buttons are unresponsive. It seems that the phone works but after a while of usage, it just turns black and I have to take off the battery to get it to reboot and work fine again.
It was running on android 4.2 if I remember as it was a secondhand phone, possibly rooted and experimented around by the previous owner. I tried flashing it to CM12 but the problem still persists.
Has anyone ever ran into this problem? What might be the cause and cure?

eliris said:
The title almost says it all,
If I leave my phone running for a while, even at idle, my Galaxy sII's screen sometimes goes black and the phone doesn't respond if I press volume buttons or the power/home button, the screen does not light up and it is as if the phone is dead, but it is running because my computer recognizes it upon plugging in and I can transfer files.
If I had music playing while the problem happened, the music continues playing but the screen is black and the buttons are unresponsive. It seems that the phone works but after a while of usage, it just turns black and I have to take off the battery to get it to reboot and work fine again.
It was running on android 4.2 if I remember as it was a secondhand phone, possibly rooted and experimented around by the previous owner. I tried flashing it to CM12 but the problem still persists.
Has anyone ever ran into this problem? What might be the cause and cure?
Click to expand...
Click to collapse
If it's doing that even in other ROMs then I'd say it's a hardware issue, maybe proximity sensor, under normal circumstances the screen stays black and won't wake when you press the power button, when the proximity sensor detects something close or when the sensor is covered it keeps the screen off, it could be faulty and acting as if it detects something even though it isn't there.
Or it could be the battery maybe?
Sent from my SM-S903VL using Tapatalk

Related

G-Tablet Quit working after 6 months. Need advice

My G-Tablet was working great for the last 6 months, the day I bought it, I flashed it with Cyanogenmod 7. Last night I was listening to Pandora, while reading Manga. I set it down and went to sleep.
When I awoke the Tablet was off, still plugged into the AC adapter. And refused to boot. After trying to get into the recovery thinking somehow it bricked itself, I noticed the screen would flicker ever so dimly. So I ripped the back off and unplugged the power thinking maybe it's not really off, maybe it's locked.
Alright, so now after holding the power button down for about 30 seconds it starts booting, I see three birds, the words android, the Cyanogenmod logo and then it goes black. After about a minute of that, I assume it booted. Still starting at a completely black screen I pressed the volume button + and - and I hear the beep boop. Alright so it booted. Where is my VIDEO?
I hold down the power button for a minute, I press the volume buttons but no sound. Ok, it's off I'm guessing. Lets boot again. This time nothing, completely blank screen, until it gets to the Cyanogenmod Logo. The video comes on for about 3 seconds then off again. About 15 seconds later, it comes on and I see the android robot riding the skateboard for about 3 seconds, then black again. It again finishes booting, I play with the volume buttons and I get the beeps. But absolutely no video.
One other thing, is that while booting. It ALWAYS turns on the video for the little robot on the skateboard for 2-3 seconds.
Has anyone experienced anything like this before? I'm totally at a loss, I really hope the GPU is fine.
I miss my tablet
If it turns out to be a hardware problem you should have a year long warranty from viewsonic. Someone who has had experience with the warranty process will have to tell you whether or not they will deny your claim if it arrives with CM7 installed (I haven't dealt with them). If you are able to NV flash before sending the tablet back in you should be golden though.
Thanks for the advice Bret.
I had the tablet sitting on my desk, I booted it up, still a black screen but I could hear the volume beeps. I let it sit there for about an hour, running on battery. And wouldn't you know. The screen came on. It's been working perfectly so far, I can reboot, shutdown, let it sleep ect. Not a single problem. I would absolutely love to know if it was a software glitch, or what. Seems my GPU is fine, rocks 3d apps no problem.
But I know if I don't know what caused this, more then likely it'll happen again and I'll flip out.
Open your gTab up and reseat the cables going into the LCD panel.
You say you have been running CM7 for ~6 months? have you had to reflash you system at all in that time?
The reason I ask is that I have had issues of the system corrupting itself over time, and almost every time I had reflashed, everything seemed to go back to being fine. Who knows... maybe its time to do a backup and flush the system for good measure..

[Q] Samsung Galaxy S3 shuts off randomly. Won't turn on consistently?

My Samsung Galaxy SIII smart phone has only recently been having issues. My phone will turn on, will be charged and function as normal - ie, no performance issues at all when the phone is actually on. But sometimes, my phone will randomly shut off with no prompt or message. Sometimes it will attempt to turn back on itself, other times I need to press or even hold the power button to turn it on.
The real problem is when it boots, it SOMETIMES (3/5 times average) will begin to boot, then the screen goes black again - ie, the Samsung logo will show up upon vibrating, then shut off or reboot and try again (this can sometimes happen singularly or in tandem). Other times, it will boot as normal, sometimes working normally, other times just randomly doing the abrupt shut down, and the cycle starts over.
I've tried taking the battery out, rebooting it, booting to safe mode, removing battery + keeping it out for ~10 minutes to discharge, etc. My phone isn't up to date, as my phone is rooted. However, I haven't modified my phone or done anything to it in a long time, and this has only has begun happening recently. My current firmware is rooted stock Android 4.2. Are there any other solutions besides formatting my phone? I cannot send it in/get it replaced by my provider as my warranty has expired. Thank you. :angel:
Go to the Play Store and download emmc brickbug check.
Get that diagnosed.
If it's good i suggest you do a full wipe and update it to the latest samsung 4.3 update.
Ultimate GS3 sudden death thread.
Well you better get up to date, best to start with a factory reset and the latest stock rom first.
I guess you're running an unstable leaked 4.2.2 firmware,so I would suggest you to install stable 4.3 firmware.
Maybe your power button got stuck..
To find out, push your power button and keep hold it even the "samsung galaxy s III GT-I9300" appear.
Do you experience the same thing or not.
TheoDores said:
Maybe your power button got stuck..
To find out, push your power button and keep hold it even the "samsung galaxy s III GT-I9300" appear.
Do you experience the same thing or not.
Click to expand...
Click to collapse
I found a fix for my S3 which was doing EXACTLY what many of you are describing. I will get to the fix and it will sound ridiculous, but it worked for me and for the other people responding to the posted fix. ***** Hint: my problem was the power button and the fix was free and easy though may require you to be pissed at your phone as I was at the time.
Before getting to what fixed my phone. It seems like every one with a Samsung phone Sh*tting out in this manner should go through the well-conceived sequence I post below in the link. That guy though through the problem and made a great help list even though I found myself with a phone that was a mess even after all of those steps. My phone just vibrated when I tried to start it or maybe it began to show a graphic screen of the boot process before it went to black again and just vibrated. I am stuck with 4 more months of verizon contract so I was desperate and unahppy to say the least. I tried at least 50 time to boot my phone yesterday and went to a verizon store they were no help as expected especially when they saw a boot screen image that they did not recognize... I was one of those rooting creeps that they are not obligated to help...
first link:
http://thedroidguy.com/2014/03/fix-galaxy-s3-wont-turn-troubleshooting-guide/
A stuck or malfunctioning power button can cause... getting random reboots, lack of starting, lack of posting, getting stuck at various screens in the boot process and then going to a black screen which may just accompany a vibrating phone or a seemingly dead phone. Our problem is the power button being "stuck" underneath/inside of the janky, crappy little clip on power button that you are actually pushing in on your phone.
see this youtube video. In other words the thing you push is only pushing something else inside. I took my power button out (it clips in) cleaned out the cavity by blowing and with a toothpick and I was fixed!
http://www.youtube.com/watch?v=pQ-U-Q_NdOo
I was pissed at my phone so where the guy in the above youtube video says something like tapping his nail (finger nail) into the power button or whatever I was pretty aggressive and crammed my thumbnail down the sides of the power button until the janky little piece of crap actually popped out revealing itself as a clip kind of a thing. I then blew the hell out of the hole with all of the breath I could muster and took a toothpick and depressed the actual power button several times and "cleaned out" and cleared out any hair or gunk (really did not see any) that might have been in the socket. I put my power button back in (just clips in by itself if you put it in the socket the right way and push down) and I have had NO PROBLEMS since. Start with the first link I posted but be wary of the clearing Cache part unless you no what you are doing ahead of time. I had just done a factory reset and total wipe with TWRP before installing a new ROM so I did not have anything to lose. You might... I don't know enough about what resides in "cache" to advise you. Then if you are still in trouble listen to the second post which is a video. I actually crammed my thumbnail down into the power button cavity on both the top and bottom (the long axis) of the button aggressively enough that the visible button popped out. Then I did my blowing and cleaning, etc... crammed the visible button back int - which clips into place and I have been stoked since. Hope it works for you if not, sorry!
*As a side note, I sort of assumed that the problem with my phone (and I bet yours) has something to do with power: either getting to the right place in the phone from the battery or the power chord OR the f*ing power button on our cheap, janky plastic yet expensive Samsung phones might be a problem because before the weird random reboots and not booting began the power off dialog (like when you hold the power button down long enough and you get the "reboot" "power down" "airplane mode" menu kept coming up while I was surfing watching youtube or even talking. I figured it was time to install another ROM, did so twice and still had the same issues. I reflashed recoveries back and forth from TWRP to the other one several times too. Nothing worked until I cleaned out the power button. Go figure.
I was pissed at my phone so where the guy in the above youtube video says something like tapping his nail (finger nail) into the power button or whatever I was pretty aggressive and crammed my thumbnail down the sides of the power button until the janky little piece of crap actually popped out revealing itself as a clip kind of a thing. I then blew the hell out of the hole with all of the breath I could muster and took a toothpick and depressed the actual power button several times and "cleaned out" and cleared out any hair or gunk (really did not see any) that might have been in the socket. I put my power button back in (just clips in by itself if you put it in the socket the right way and push down) and I have had NO PROBLEMS since
Click to expand...
Click to collapse
I tried a similar approach and it looks like it actually worked. I just took the plastic cover of and removed he 10 little screws and played around with the plastic thingy that depresses the power button. I don't know what exactly fixed it but is seems to work.
So you might not have to remove your power button but instead just play around with it first and see if you can't get it to function properly again.
Thank you so much brjoon1021!
Galaxy SIII I9300 shuts of randomly but only when not used
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Dion64 said:
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Click to expand...
Click to collapse
Hi
I have the exact same problem!
I tried factory reset, wipe cache, I have bought new battery ... nothing helped so far...
S3
pagep said:
Hi
I have the exact same problem!
I tried factory reset, wipe cache, I have bought new battery ... nothing helped so far...
Click to expand...
Click to collapse
Turn off sync. See if that helps it fixed mine.
zern said:
Turn off sync. See if that helps it fixed mine.
Click to expand...
Click to collapse
Well it started to get worse every day, so we tried factory reset once more and after that, the phone just died. (only colored rubbish is shown on the screen) ...
Never ever buying Samsung again. Piece of crap ...
Anyway we had chance to buy LG G2 on the sale. I know it's quite old, but the price was perfect and it's many times better than S3. :good:
Dion64 said:
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Click to expand...
Click to collapse
my is also the same problem..if u have found solution for it please tell me .

[Q] galaxy S3 dark scrren

My galaxy S3 is showing a very weird problem. I was using the phone and before reaching home the battery when completely flat. When I arrived home and plugged the phone to the wall charger the screen remains dark, black. Now the battery is full charged (green light) but the screen remains to the same estate. When someone calls me the phone rings. When I plug it to the computer I can see the files inside the different drives. I reinstalled the OS that is 4.3 but still same problem. I didn't drop the phone and It didn't have any shock.
That is weird. I am thinking of a dead screen but before going for a chirgucal operation on my beloved phone I wanted to ask if that couldn't be a software problem.
Happy to hear from your experiences.
Boot into download mode, volume down + home then power button. If the screen is dead in download then it is hardware.
jacdem said:
My galaxy S3 is showing a very weird problem. I was using the phone and before reaching home the battery when completely flat. When I arrived home and plugged the phone to the wall charger the screen remains dark, black. Now the battery is full charged (green light) but the screen remains to the same estate. When someone calls me the phone rings. When I plug it to the computer I can see the files inside the different drives. I reinstalled the OS that is 4.3 but still same problem. I didn't drop the phone and It didn't have any shock.
That is weird. I am thinking of a dead screen but before going for a chirgucal operation on my beloved phone I wanted to ask if that couldn't be a software problem.
Happy to hear from your experiences.
Click to expand...
Click to collapse
never heard this type of problem
try to go into recovery and check if it displays anything
If successful do factory reset
In download mode i can see nothing. That is really weird. I am letting the battery drain completely and i will check. Thank you for your replies
I wanted to upgrade so far what i am getting. The screen while dark, black is reacting to touch actions: for exemple when i lock the phone with the power button i can hear the lock sound;when i unlock with the lide action on the screen, I can hear the unlocking sound. I think that must be a weird system problem. If the screen was broken will it react to such touch actions?
Lide=slide. I can actually take a call with the slide action on the screen. When someone calls me i just have to slide my finder at the proper place on the screen to take the call. I need help please.
Most probably its the hardware. Your LED seems to be ditching you. And yes a bad led can still response to touch despite of being black all the way. Actually it's the digitizer that responds to the touch NOT the LED itself.
In your cas3 so far from your feedback I can say that you are having a bad LED everything else including the digitizer is working well.
Sent from my GT-I9300
Thank you i w
ill try it check it tomorrow. I will try to install another firmware, may be 4.0.4. The one i was using i just installed it 2 days ago.

I9300 seems to freeze after turning off the screen

This problem started happening two weeks ago and it's quite annoying. Running Android 5.11 Archidroid with the latest Archikernel version on my phone.
The problem is that my Galaxy S3 seems to freeze when the screen turns off. If the screen is turned off for maybe half an hour or more, pressing the power button will not wake the device. In an attempt to figure out if it's a broken power button, I set the home and volume buttons in the settings menu as keys that will turn on the screen, but that doesn't work either. The only way to fix the issue is to hold the power button to restart the device and doing that every couple of hours gets really annoying. Trying to turn on the screen literally does nothing, as if the phone is turned off.
When the phone is not charging, the interval between the freezes seems to be much longer. The phone will work perfectly for a couple of hours without the above mentioned problem but when on a charger it quickly screws up.
Now, I don't believe my device turns off during this "process". I've turned on the LED for charging and whenever I'd get the screen freezing problem I'd unplug the charger and the LED wouldn't go away, it'd still light up as if the phone is connected to the charger, which it isn't.
Anyone have any idea on what the problem is? I've never experienced this before and it started happening all of a sudden.
How low is the kernel clockspeed running in sleep mode?. Should be at 200mhz at the very minimum!.
Beamed in by telepathy.
If this does not happen on a stock ROM, it would be a problem with the ROM and the phone.

Question Realme GT 5G just turned off - now in bootloop

Hi,
Just few minutes ago my brand new phone just broke on me. I was holding it in my hand, locked screen, like minute later I tried to unlock it to no avail, screen just stayed black. There was a sound when I touched it by the fingerprint sensor, but no light up from behind the screen. I tried holding down power, then power+volume up, phone only vibrated, no reaction on the screen. I've connected it to the charger, and now it seems to be in bootloop - screen is turned off, and every few seconds phone vibrates. I've managed to somehow turn it back on once, phone booted to system, everytthing worked just fine, then I locked screen and it just stayed black, now I can't reproduce that, can't even turn it off, it's just vibrating every so often. Did it really brick in my hand? Software of Hardware? Everything worked just fine, maybe battery was draining a little bit too much for my taste, (15-20%/hour with screen on+lte/wifi) but 120Hz refresh rate+bright setting and AOD turned on 9am-9pm could do that. Do you guys have any suggestions, or I'm expecting trip to the service?
Sorry, but i cannot guess any reason. I am stumped as this bootlooping shouldn't beb happening... Very strange. May be its better to show it to service center guys.
Btw, i had tried this on my previous android phone to shut it down, like a hard shutdown. I had pressed power + volume down + volume up keys together to shut it down completely. Basically by pressing all the 3 keys. If you want to try, you can try it. I have not tried it on my GT, but had used it on Oneplue 2 and Honor View 10.
Hope your issue gets resolved asap...
Okay, I've contacted support via livechat, they told me it's definetly just software glitch, and to resolve this I have to wipe dialer cache (?) and all system settings - I did it, everything worked just fine, but today, again, same thing happened. First time phone just died in my hand, second time it was while listening to music via Pulsar, today I was just sharing wifi as a hotspot, phone randomly broke connection and would not unlock, but still I could tell it was on, because of vibrations and sounds. Not a software glitch after all? If I manage to unlock it I'll just recover it to factory settings, we'll see if that helps, but I don't like the sound of that.
What apps are -you- installing?
Launchers and power management apps are prime suspects...
Otherwise, mobo failure. It may be firmware but how far do you want to take it?
It should run fine out of the box.
Last time I played with launchers was with good old SGS about 5 years ago, only app out of ordinary was AccuBattery to check that SoT drain, but could it make such a damage without root privilages?
d4m4in said:
Last time I played with launchers was with good old SGS about 5 years ago, only app out of ordinary was AccuBattery to check that SoT drain, but could it make such a damage without root privilages?
Click to expand...
Click to collapse
Accubattery isn't the culprit...

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