[Q] HELP: Galaxy S2 not turning off screen - Galaxy S II Q&A, Help & Troubleshooting

I have a strange problem.
My Galaxy S2 (9100) is not turning off the screen anymore.
When I press the power button, usually the phone would turn off the screen and go into sleep mode.
Now the phone immediately wakes up again, showing me the lock screen.
I got that phone on Android 2.3.3 (Gingerbread) where it ran fine in the beginning.
Then this behaviour appeared. I have updated to ICS (4.0.4) via Kies software and problem still exists.
I then thought I might try a completely new ROM, so got CyanogenMod latest stable release from their website and installed that (with google apps).
No other software installed, so I can exclude this as a problem.
Problem still persists.
So it seems not connected to any ROM neither to any software.
The strange thing is:
The power button is working, because I can
- long press to bring up the menu to shut down the phone (which works ok)
- short press and the screen will turn off - only it comes on a second later again.
Obviously this drains the battery quickly.
Help please!

TheMobilist said:
I have a strange problem.
My Galaxy S2 (9100) is not turning off the screen anymore.
When I press the power button, usually the phone would turn off the screen and go into sleep mode.
Now the phone immediately wakes up again, showing me the lock screen.
I got that phone on Android 2.3.3 (Gingerbread) where it ran fine in the beginning.
Then this behaviour appeared. I have updated to ICS (4.0.4) via Kies software and problem still exists.
I then thought I might try a completely new ROM, so got CyanogenMod latest stable release from their website and installed that (with google apps).
No other software installed, so I can exclude this as a problem.
Problem still persists.
So it seems not connected to any ROM neither to any software.
The strange thing is:
The power button is working, because I can
- long press to bring up the menu to shut down the phone (which works ok)
- short press and the screen will turn off - only it comes on a second later again.
Obviously this drains the battery quickly.
Help please!
Click to expand...
Click to collapse
Hmm this is really strange
Maybe it's a "loose connection" of homebutton?!
Try do press a bit "harder" "softer" "more up" etc... hope u know what I mean....
If one of the pressings work it seems to be a hardware prob.
If always the same it must be a software problem and u can try to flash a new kernel (if u also on Cyanogenmod)
Much success
CHEERS

Of course I have already tried to press the power button in any way I could imagine (soft, hard, more up, more down, etc) - always the same result: Screen turns off and comes back on immediately.
The question is, what kind of hardware failure can this be? The power button seems to works.
Are there any hardware features on this phone that would either automatically turn on the screen or prevent the phone from going into standby? I know some of the newer phones have a function that detects if one is watching the screen and then prevents standby. Maybe such a feature is malfunctioning? Only I am not aware that the S2 has such a thing.
I don't think it is a software issue, because I have had the same experience with 3 different ROMs now (Gingerbread, Stock ICS, CyanogenMod 9)

Same issue Here .......

Related

[Q] My S2 reboots instead of turning off ...

Here is the problem...
Both when long pressing power button - and short pressing + taping on a POWER OFF button - the phone doesn't turn off It just shuts down, vibrates and then restarts. Didnt have this problem before - just noticed it today.
I use official I9100XXKE4 rom - never rooted the phone and never used any custom ROMs.
Any idea what causes the problem ?
cryanpl said:
Here is the problem...
Both when long pressing power button - YES thats how you reboot SGS.
Short press = screen off
Hold power button down OFF screen displays
You can always try factory reset and wipe data if you think you have a problem .
jje
Click to expand...
Click to collapse
Just hard formated the phone using *2767*3855# method
(WARNING - THIS CODE FORMATS YOUR PHONE AND ERASES ALL DATA)
... and nothing still reboots instead of turning off.
I just long press the power button - wait for the menu to appear - the tap on a POWER OFF text - the phone informs me that this will Turn Off the phone - I tap on OK - and ... it doesn't turn off - but jus restarts.
Very strange I am on a train right now - and wanted to save sme battery for the final part of the trip - but looks like because of this problem - I am not able to turn off the device. OK - i phisically removed the battery - but it's not the solution of the problem for future I guess
Return to seller its not normal .
jje
I know exactly what you mean. I had this issue amongst a list of others and it was really ****ing me off. After i updated to ke7 it was still the same. I have a bluteooth issue so installed Villain ROM 1.1 - That sorted the problem. The phone turns off and on like normal but still have the bluetooth issue.
I dont think you should return it until the new firmware is out
soved
Hi, I had the same problem too, the details:
1. I have never used a different ROM than the original.
2. I haven’t upgraded the original firmware.
3. When the problem happened I haven’t installed any software (recently)
4. This is not a software problem definitely
5. The problem began when I have finished charging the phone (the phone was turned off), I disconnected it from the AC Charger and it began to show the battery icon like if it was charging and a yellow triangle advertising that the charger doesn’t have the sufficient power to charge. Then I tried turning on the phone (it was really difficult to turn it on), when I finally turned it on I noticed some problems with the data network (really annoying), when I tried to turn off the phone, it begun to restart instead turning off.
6. I have been goggling since then, only one thing solved the problem is to clean the USB PHONE connector (I used a small clip to clean), there is something unclean (I can´t see, it’s something very little) yet but the problem has gone, all is normal now.
7. In a youtube video, someone has a comment that says: “I had to turn it in to the local samsung service location. They told me that it was corrosion in the USB port due to water damage. They charged me €70, and I'll pick it up tommorow.” This confirms the problem.
I am thinking that the USB connectors come with this problem, so we have to be very careful at the moment of charging the phone, maybe we should plug the charger to the phone before connecting it to the AC power.
Sorry for my english (it's not good)
freddysalazar:
first post. i rarely post, but wow, that solved it. it must be hardware related. i took a cotton cleaner(or what it is called) and cleaned it and it solved the problem. will not have the charger by my bedroom windows during snowy winter anymore. moved it to my dry livingroom

[Q] Phone freezes/turns off, doesn't react anymore

Hey,
my gfs Ace is showing some very strange behaviour. At random times when she tries to use it it just won't react to anything. Neither home nor power button unlock the screen, holding power button doesn't do anything (neither turn on nor off). Adb won't connect to the phone. All one can do is remove the battery, after that it'll let you turn it on and work just fine.
Happens like every 2 days and so far I couldn't spot any pattern. Firmware is 2.3.4 KPH
Is anyone else seeing this or any idea what could be causing it?
Yes, it's called SOD (sleep/standby of death) and it happenes to me sometimes and some other people i know that have ACEs...there's no fix i'd know about..yet
does it happen with any firmware or was it just introduced? any idea whether it's just some bad phones so she could get a different without the bug?

[Q] Galaxy S3 lockscreen hang and also unresponsive blackscreen

Hey guys,
I know there has been a couple of posts like this that I have found through searching but none have actually found a solution, so instead of resurrecting a old thread I thought I would start a new one.
Basically I am having some issues with my new pebble blue (yey) S3 . I have found that sometimes when the phone is sleeping when I press the power button to bring it out of sleep the lock screen begins to hang. This is followed by a number of different things, the screen either glitches for a bit and then begins to work or it stays locked and needs a battery pull. As well as this I've found that randomly either when charging or not and the phone is sleeping it simply becomes unresponsive, staying on a black screen and needing a battery pull to fix (this has only occured a few times, the hanging lock screen occurs quite often).
I have done some searching and found little in the way of a solution or what the problem is, however I have found that when the lock screen hangs -if it begins to work again after glitching out the 'WIFI connected to ****' appears at the bottom of the screen. Anyway if anyone has any ideas or also recieves this problem I would really appreciate some help as it's driving me crazy and I'm unsure if it is a common S3 bug or a faulty handset, in which case I have limited time to RMA.
Cheers in advance
Hmm, sounds like a faulty phone to me. Try taking it back to get it exchanged for onother one. S3 was built to fly not crawl.
You'll want to go through a process of elimination to figure out when might be causing it.
Something you can try and test with (one at a time)
-turn on airplane mode
-turn off live wallpaper
-shut down all running tasks
-change your lock screen security method
-limit the number of widgets running on all the screens
-reduce the number of active screens
Probably other things you can try to pull out of the equation, but thats a good start
After looking up dial-a-phones returns policy it would seem that I have 28 days to return if the handset is faulty, so this atleast gives me some breathing room to try out any suggestions for fixes. I will begin to eliminate each of the suggested items above however as the lock screen problem is intermittent it make take a day so actually see if it has had an effect, which is annoying at the least.
On another note a numberupted of people are stating high battery life on their devices however mine doesn't seem to be as good and I do have power saving on as well as nfc etc. turned off. This makes me believe my handset could have a fault, but tbf I haven't allowed for a discharge to 5% and the recharging to 100% which I heare allows for optimisation of the battery.
EDIT**** I have changed the lock screen previously and found it had no effect on the problem and I do not have a live wallpaper in use.
Phone Freezing after reboot and auto wifi signal found on.
Same here, been happening the last few days after I installed Avast. Also, turning off and on the auto on wifi seemed to replicate the problem.
The phone will boot to the lock screen and freeze a bit, and sometimes the news ticker freezes, and then after unlocked, I try to turn off wifi signal has been found on the notification dropdown and then tries to auto connect to wifi, the phone will freeze up if I dont turn it off in time.
Once the auto wifi connect is off and reboots, then the phone will keep glitching up until it catches up processing alot of processes it was trying to do for about 1/2 hr. Also, if phone freezes up for too long, like after trying too many time of unlocking the screen while freezing up, the phone gets stuck at the lock screen and the phone almost overheated, in an area right below the battery. I had to pull the battery out to cool it off.
It seems to be a glitch in the auto wifi, especially if alot of resources are being used. Once Avast was on my phone about 1.5GB RAM is being used sometimes and since has really slowed the phone down. Going uninstall alot of apps.
JCrinage said:
Hey guys,
I know there has been a couple of posts like this that I have found through searching but none have actually found a solution, so instead of resurrecting a old thread I thought I would start a new one.
Basically I am having some issues with my new pebble blue (yey) S3 . I have found that sometimes when the phone is sleeping when I press the power button to bring it out of sleep the lock screen begins to hang. This is followed by a number of different things, the screen either glitches for a bit and then begins to work or it stays locked and needs a battery pull. As well as this I've found that randomly either when charging or not and the phone is sleeping it simply becomes unresponsive, staying on a black screen and needing a battery pull to fix (this has only occured a few times, the hanging lock screen occurs quite often).
I have done some searching and found little in the way of a solution or what the problem is, however I have found that when the lock screen hangs -if it begins to work again after glitching out the 'WIFI connected to ****' appears at the bottom of the screen. Anyway if anyone has any ideas or also recieves this problem I would really appreciate some help as it's driving me crazy and I'm unsure if it is a common S3 bug or a faulty handset, in which case I have limited time to RMA.
Cheers in advance
Click to expand...
Click to collapse
Same problem.
No problem if Wifi is switched off prior to sleep.
No problem if Wifi connection is still available.
Problem to lockscreen if Wifi connection is broken (move away from connected router).
Any suggestion?
sassorock said:
Same problem.
No problem if Wifi is switched off prior to sleep.
No problem if Wifi connection is still available.
Problem to lockscreen if Wifi connection is broken (move away from connected router).
Any suggestion?
Click to expand...
Click to collapse
Exactly the same here. Driving me crazy. I did root the phone using the Samsung Galaxy S3 Toolkit. I don't know if the problem also exists on non rooted devices.
S3 black screen after unlocking
Has there anyone experience S3's screen went on black? I have pebble blue S3 - GT-I9300. Cases when unlocking, answering an incoming call or attempting to turn off an
alarm? Mine happens when after unlocking the screen then it goes black and screen becomes unresponsive. It happens intermittently and even after 3 times of
reprogramming. I am now going to have it replaced. I am having a lot of troubles -- it exits on its own when im reading or composing an SMS; files were deleted after
restarting the unit, and an app opens up even not touching the scree. This is expensive and I am paying a lot just to experience this king of inconvenience.
DavidNieuwpoort said:
Exactly the same here. Driving me crazy. I did root the phone using the Samsung Galaxy S3 Toolkit. I don't know if the problem also exists on non rooted devices.
Click to expand...
Click to collapse
I also rooted my S3 a few days ago (with the S3 toolkit), and have had lots of problems with unresponsive lockscreens (I use PIN, because of exchange connection). It takes a few seconds or maybe up to as long a minute before I'm able to punch in the PIN-numbers. Before this the screen lights up but does not respond to input.
But the WiFi-connection issue might be what is the triggering factor, because after a boot it wotks just fine for several hours, if I'm not moving out of my current WiFi zone. First I thought it was either Secure Settings or Tasker that made my device lock up in this matter, but now as they are both uninstalled, the problem still occurs.
Are you running some kind of custom rom, or just the latest stock ROM, but rooted?
Flodas said:
I also rooted my S3 a few days ago (with the S3 toolkit), and have had lots of problems with unresponsive lockscreens (I use PIN, because of exchange connection). It takes a few seconds or maybe up to as long a minute before I'm able to punch in the PIN-numbers. Before this the screen lights up but does not respond to input.
But the WiFi-connection issue might be what is the triggering factor, because after a boot it wotks just fine for several hours, if I'm not moving out of my current WiFi zone. First I thought it was either Secure Settings or Tasker that made my device lock up in this matter, but now as they are both uninstalled, the problem still occurs.
Are you running some kind of custom rom, or just the latest stock ROM, but rooted?
Click to expand...
Click to collapse
Just the latest stock ROM but rooted. I've found out that turning off the wifi power safe mode fixes the problem for me. To do this:
- In the dailer enter *#0011#
- Press the menu key
- Select wifi
- Press the on/off button.
The wifi power safe mode will however be turned on during boot. So rebooting will set it back on.
*#0011# seems does the trick. But is annoying had to do this every time after power off (change battery, change Sim, flying).... Anyway to keep the setting?
I am also on stock Rom and rooted. Interested to know any non-rooted phone got this problem?
BTW. I found a quick (at least quicker than pull the battery) way to get out of the forzen lock screen (sometimes forgot to do the 0011 trick): press the power button (screen will Dim instead of OFF), then hold the home button for few seconds, as soon as you see the "menu" and "back" button lit up, the lock is un-freeze...
A permanent solution is appreciated for such an advance phone....
sassorock said:
*#0011# seems does the trick. But is annoying had to do this every time after power off (change battery, change Sim, flying).... Anyway to keep the setting?
Click to expand...
Click to collapse
Not that I know of.
Problem solved. For me anyway. Hope works for all of you having the same trouble.
My trouble begin with recent upgrade to LH3. My S3 was rooted by S3 toolkit v2.0. CWM installed was v4 something.
I un-rooted the phone. Uninstalled S3 toolkit v2.0. Re-installed the S3 Toolkit v5.0. Rooted the phone again (CWM become v6....).
I do not know it was CWM version caused the trouble or not. But my S3 is ok now.
I got it on my non-rooted phone, any additional solutions/suggestions? or service?
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
JB 4.1.1 caused these WiFi issues on my phone
Jodatnia said:
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
Click to expand...
Click to collapse
Exact opposite for me...never had the problem then since loading stock JB 4.1.1 with root I get lockups or freezes whenever WiFi is turned off or I leave my router's range. As soon as I disconnect from WiFi the whole phone freezes.
The *#0010# also locks up the phone when I turn off the WiFi power saving feature.
None of this happened before JB...and I replaced my phone with week via warranty due to this and the new phone does the exact same thing as soon as I upgraded to JB with root.
Any ideas?
Black screen / random reboot solution
Hi All,
I've had the black screen / random reboot issue for a few days. The only way to restore functionality on black screen lockup was to remove the battery.
I tried changing to Chrome browser and stopping the stock browser as suggested in some threads but it kept crashing.
I searched everywhere and most threads suggest a dodgy motherboard.
For me the issue was related to either a single PDF download via the stock browser or the fact I had quite alot of saved PDF files on my phone (S3 Stock firmware I9300XXELLA)
After deleting all the files listed in Internet downloads (look for Downloads with a green arrow Icon in apps) my trusty S3 has returned to normal. No black screen lockups, no hanging, runs like a dream!
I appreciate this may not solve everyones black sceeen issues but I haven't found any other thread with this solution. Hope it works for you.
Thanks,
Giz.
giz_zard said:
Hi All,
I've had the black screen / random reboot issue for a few days. The only way to restore functionality on black screen lockup was to remove the battery.
I tried changing to Chrome browser and stopping the stock browser as suggested in some threads but it kept crashing.
I searched everywhere and most threads suggest a dodgy motherboard.
For me the issue was related to either a single PDF download via the stock browser or the fact I had quite alot of saved PDF files on my phone (S3 Stock firmware I9300XXELLA)
After deleting all the files listed in Internet downloads (look for Downloads with a green arrow Icon in apps) my trusty S3 has returned to normal. No black screen lockups, no hanging, runs like a dream!
I appreciate this may not solve everyones black sceeen issues but I haven't found any other thread with this solution. Hope it works for you.
Thanks,
Giz.
Click to expand...
Click to collapse
Thanks for the tip...
Was this happening on JB for you? You mention stock firmware (not familiar with I9300)...so I am guessing it was ICS.
For me the issues are with JB and I had no files at all in the Downloads folder after a certain point when I wiped / formatted the SDCard...so I do not think my lockups were related to PDFs. But I did (and still do) have a ton of music and a lot of movies on the External MicroSD Card....and quite a few custom notification and ringtone MP3s on the Internal SDCard. Next time I load JB I will run it a few days with none of this media loaded....
Jodatnia said:
I found solution for problem . And my phone is working well. I downloaded rom file android 4.1.2 and flash my phone
Click to expand...
Click to collapse
For me this also worked. Resolved everything. (on i9300 int)
Boomer6345 said:
Thanks for the tip...
Was this happening on JB for you? You mention stock firmware (not familiar with I9300)...so I am guessing it was ICS.
For me the issues are with JB and I had no files at all in the Downloads folder after a certain point when I wiped / formatted the SDCard...so I do not think my lockups were related to PDFs. But I did (and still do) have a ton of music and a lot of movies on the External MicroSD Card....and quite a few custom notification and ringtone MP3s on the Internal SDCard. Next time I load JB I will run it a few days with none of this media loaded....
Click to expand...
Click to collapse
This is on JB 4.1.2, Phone had been updated to 4.1.2 for about a month. The issues started after a pdf download. Once all pdf's were deleted the handset works perfectly.
Giz

[Q] My Galaxy S2 is having a plethora of issues!

Okay, I will be as detailed as I can be. First things first, it's my moms phone. Me and my dad are the "tech people" in my house, and he doesn't know as much about Android as I do, so he referred her to me, and I'm lost...
What is it: Samsung Galaxy SII (GTI-1900), running Android 4.2 I believe (I upgraded it previously to fix some problems)
Now it seems some of the problems it used to have, have returned with a vengeance! For some reason, when she tries to shut it down by holding the power/sleep/wake button, it just shuts down. Upon being off, it simply goes through a cycle of showing the battery loading, then the battery being fully charged, then shutting off again, this is all while UNPLUGGED!
But wait, there's more!
Upon turning on, which you have to plug it in first to turn it on, the task menu, whatever it may be called, task monitor/manager I suppose, says that two things are running, the clock, which is understandable due to alarms that are set daily, and Google Play Music, which she doesn't use Ever. Somehow it has started at boot... Upon tapping "close all" it closes all, but the widget still shows 2 processes running, which does not show up after tapping the widget and opening the task monitor. My dad's phone is perfectly normal, yet is the SAME PHONE. any idea how this is happening?
EDIT: It also, after being unplugged, will show "Charged" on the lock screen. the lock screen is the default for the device.
P.S. The ROM I flashed to it is NOT CUSTOM. I got it direct from Samsung updates. It is however, I believe, the European version, as I could not find an american version. The phone is also not rooted.
nocht420 said:
Okay, I will be as detailed as I can be. First things first, it's my moms phone. Me and my dad are the "tech people" in my house, and he doesn't know as much about Android as I do, so he referred her to me, and I'm lost...
What is it: Samsung Galaxy SII (GTI-1900), running Android 4.2 I believe (I upgraded it previously to fix some problems)
Now it seems some of the problems it used to have, have returned with a vengeance! For some reason, when she tries to shut it down by holding the power/sleep/wake button, it just shuts down. Upon being off, it simply goes through a cycle of showing the battery loading, then the battery being fully charged, then shutting off again, this is all while UNPLUGGED!
But wait, there's more!
Upon turning on, which you have to plug it in first to turn it on, the task menu, whatever it may be called, task monitor/manager I suppose, says that two things are running, the clock, which is understandable due to alarms that are set daily, and Google Play Music, which she doesn't use Ever. Somehow it has started at boot... Upon tapping "close all" it closes all, but the widget still shows 2 processes running, which does not show up after tapping the widget and opening the task monitor. My dad's phone is perfectly normal, yet is the SAME PHONE. any idea how this is happening?
EDIT: It also, after being unplugged, will show "Charged" on the lock screen. the lock screen is the default for the device.
P.S. The ROM I flashed to it is NOT CUSTOM. I got it direct from Samsung updates. It is however, I believe, the European version, as I could not find an american version. The phone is also not rooted.
Click to expand...
Click to collapse
I too faced a similar problem. The "UNPLUGGED CHARGING" was due to some fault in my micro usb cable in the phone. I resolved it by cleaning the usb port with a brush/needles. BTW dont force too hard. This may not be the only solution. But do try this. :fingers-crossed:

S3 acting weird

Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Axxell19 said:
Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Click to expand...
Click to collapse
did you tried to make a factory reset?
Axxell19 said:
Hello, I have some big issues with my S3.
I have been using Android Revolution HD v29 for a long long time and a week ago I decided to update it to v52. Everything was working well, but then the camera started acting weird ( it had some pink lines ) but it wasn`t such a big problem and I let it go. Today, the power button became very sensitive. Even a simple touch turns the screen on and a press opens the power off menu.
Now, it is restarting itself all the time, I took the battery out and now when I put it back on, the phone starts without touching the power button. I tried going to download mode but after a time it restarts again. I am worried that if I try to install a stock rom, it will restart again and I can do more damage to my phone.
What should I do ? I am posting here because I don`t think this is a ROM issue because everything was working fine, it seems to be a hardware problem. My phone is still in warranty but it is rooted atm.
I hope you guys can help me
Click to expand...
Click to collapse
It's a hardware problem, the power button is daamaged or stuck (thats why it turns itself on with battery). Also, pink lines on the camera are symptom of a bad contact, you should also get that camera checked.
Try and get it stable. Maybe open it and try to get the power button to stop resetting the device.
Next, triangle away, and flash a stock rom with odin (follow the guide on getting back to factory state with 0 flash counter). Remember that to avoid having the binary flash count at 1 you have to turn it off after triangle away finishes resetting the counter and before the phone boots android. Then flash a stock rom with odin.
Best of luck.
I did a factory reset right now and it seems to be better. The autoreset has stopped, I don`t know it it is because of the factory reset or the button is working fine for the moment, but at least I can flash a stock rom now.
Anyway, the camera issue and the sensitive button are still there.
L.E : I am now back to full stock and everything works fine, if the problems come back I will take it to warranty.
Thanks for your help !!

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