Galaxy S2 shutting off in idle mode

Contributor

Galaxy S2 shutting off in idle mode

Recently, I noticed that my phone shuts off while in sleep mode. This just happens when I don't check it for a while and the display is turned off. When I do go to check my phone, it's unresponsive, even if I hold down the power button. So far, I've had to remove the batter every time this has happened in order to reboot it.

I just don't get what the issue is. I'm probably missing phone calls because I'm not even aware that my phone is turning off. I feel like after the ICS update my phone has had issues. I already performed a factory reset last week since I was having a problem with the notifications not ringing and vibrating, and now, this is happening on top of that. 

If anyone has any suggestions, that would be greatly appreciated.

I have a Samsung Galaxy S2 i777.

Oh, and another thing, I noticed that my batter is at 95-100% before it shuts off by itself, and once it boots up again it's down to 85-89%. I also feel like it might be an issue with overheating: I noticed that my phone feels hot after I've been using it for a while, like texting or using the internet, and then I set it down to do other stuff when I notice that it's turned off. My phone usually feels really hot too, and the case I have for my phone probably does not help either. 


Message 1 of 620 (56,736 Views)

Re: Galaxy S2 shutting off in idle mode

I just called to see if I could get a JB release date from ATT. "We don't know". Incredible.

Message 121 of 620 (6,966 Views)
Mentor

Re: Galaxy S2 shutting off in idle mode

I tried the clock trick when I was still on 4.0.4 and mine still crashed.  Almost 14 days now for me on 4.0.3 with no reboots and no shutdowns.  I think the only way we will get JB is rooting and doing it ourselves.  The S4 will come out soon so they want to sell us all new phones.  The S2 is still a great phone and so much better than an Iphone when its working right.  

Message 122 of 620 (6,957 Views)
Voyager

Re: Galaxy S2 shutting off in idle mode

I  too have all the problems discussed here - Galaxy S2 battery drain and sleep of death. I also have lost Bluetooth capability to work with SYNC in Ford. Will this also be fixed by the forthcoming update? I sure hope so.

Message 123 of 620 (6,887 Views)
Contributor

Re: Galaxy S2 shutting off in idle mode

2 months Ive been dealing with this.....

Message 124 of 620 (6,836 Views)
Mentor

Re: Galaxy S2 shutting off in idle mode

Anyone else receive notifications of several more messages (including 2 from a moderator) that are now inaccessible?

 

Now I'm really curious!!

Message 125 of 620 (6,736 Views)
Mentor

Re: Galaxy S2 shutting off in idle mode

It would seem that not only can we not get a fix it appears as though now we are being censored and posts are being removed.  Nice we are all begging for help and this is the response.

Message 126 of 620 (6,655 Views)
Tutor

Re: Galaxy S2 shutting off in idle mode

I did the exact same thing. It seems working. I am posting detailed steps here for anyone who is interested, Please tell us whether this solved your problem.

 

Please backup everything on your phone memory before you attempt this. This will wipe out your phone completely.

 

1. Open Samsung Kies as Administrator

2. goto Tools -> Firmware upgrade and initialization

3. Enter the model name SGH-I777 (in all upper case letters)
4. Enter the Serial Number of your phone. This can be found under the batter.

5. Click OK. Then you need to accept the warning and it will tell you which firmware it is going to flash onto your phone. It will be 4.0.4. Accept that as well.

5. It will download the necessary files. At this point you can shut down the phone and remove the battery and re-instert the battey.

6. The while pressing the volume Up and Down keys simultaneously (Not the power button) plug the USB cable. Your phone should boot into download mode. It will display a message Downloading..... on the screen.

7. Start Upgrade button on the Kies upgrade screen should now be activated. If not, you may need to reinstall the USB drivers for i777 and may need to reinstall Kies.

8. Once you hit Start Upgrade button, it will start download the proper firmware from the web and then start sending it to the phone. You will see a progress bar in the phone as well. Sometimes it could give you an error similar to "DLL load faliure..." If that happened, try change the Compatibility mode of Samsung Kies to Windows Vista SP2 and run in Administrator mode. This can be done by right clicking on Kies icon and selecting Properties --> Compatibility tab.

9. Once the Kies finish transfering the firmware to the phone, the phone will start installing it and once finished, it will reboot. 

10. I also factory reset the phone after the upgrade by booting into stock recovery console. You can shut down the phone, press Volume UP + DOWN together and press power button without releasing the volume keys. Then select Factory Wipe and hit Power button.

11. I desabled all the AT&T bloatware anyway because I don't like them and use them anyway. I don't know that was the case because it didn't help me earlier.

 

Now my phone works as it used to be. 4.0.4 seems to have a good battery life even with WiFi switched on all the time. Earlier if I keep WiFi on for few hours it completely drains my battery. I am happy with my phone again.

 

Thanks scot070 for the wonderful tip.

 

 

Message 127 of 620 (6,603 Views)

Re: Galaxy S2 shutting off in idle mode

Thanks for the detailed instructions, neshadha. 

 

I'm a little stumped by the fact that replacing the firmware with the exact same firmware version fixes the problems. Interesting. I wonder if it will degrade over time. Hope not.

Message 128 of 620 (6,564 Views)

Re: Galaxy S2 shutting off in idle mode

Well, I thought I was out of the woods. Not that there was anything I did to fix it, but I just went 6 or 7 days at least, with no problems. Then just now, froze up.

 

If I don't see JB drop within a week, I'm rooting this thing and installing something that works.

 

AT&T - first opportunity I get, I'm going to Verizon. Thanks for nothing.

Message 129 of 620 (6,495 Views)
Highlighted
Mentor

Re: Galaxy S2 shutting off in idle mode

 


geetarplayer wrote:

Well, I thought I was out of the woods. Not that there was anything I did to fix it, but I just went 6 or 7 days at least, with no problems. Then just now, froze up.

 

If I don't see JB drop within a week, I'm rooting this thing and installing something that works.

 

AT&T - first opportunity I get, I'm going to Verizon. Thanks for nothing.


Pretty weird, geetarplayer, that today is the first day that I too found my phone off since I wrote that it was doing so well 4 days ago. We seem to be in sync :-)

Message 130 of 620 (6,478 Views)
Mentor

Re: Galaxy S2 shutting off in idle mode

Spoiler
 

 

And  a second shut-off today after 4 happy days of no shut-offs.

Message 131 of 620 (6,444 Views)
Mentor

Re: Galaxy S2 shutting off in idle mode

Mine is still good running 4.0.3 & rooted.  Has been 15 days tomorrow I think.  I have not done a single manual restart either, nor have I changed any clock settings or deleted any bloatware.  I did disable Acuweather & AT&T hotspots. I forced close on the other AT&T aps.  I continue to be happy with the performance now and I have used it heavily at work this week.  

 

I still think the bug is in the 4.0.4 firmware.  

Message 132 of 620 (6,433 Views)
Contributor

Re: Galaxy S2 shutting off in idle mode

I had this issue for months now. Obviously is faulty software that we were forced to install. According the AT&T rep, she indicated a fix would be done in a few weeks.  It’s been a week and no update to that post.

I tried all kinds of solutions including purchasing a new Samsung battery and nothing has helped. 

Sometimes it happens 2 or 3 times per day and sometimes it can go 3 or 4 days without going into a coma.

I don't think this is a AT&T issue since there are other boards where people that have the S2 with other carries are experiencing the same issue.

Perhaps it’s time to root the phone once and for all… 

Message 133 of 620 (6,422 Views)
Teacher

Re: Galaxy S2 shutting off in idle mode

My phone is also back to working properly after going back to 4.0.3. Not one single issue.
Message 134 of 620 (6,399 Views)

Re: Galaxy S2 shutting off in idle mode

OK, my countdown starts now. I just flashed an alternative ROM. I'll let you know how it goes. Since I've have strings of a week or more of false success, I won't consider this fixed until I see it working for a month.

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