07-06-2012 12:21 PM
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.
Solved by: Go to Solution.
03-29-2013 7:27 AM
As some of you have already noted, an update is available for the Samsung Galaxy SII.
The update includes fixes for devices that may become unresponsive and/or power down while sitting idle on rare occasions. It also enhances security to protect against malware vulnerability. You will receive a notification on your phone to update.
NOTE - You must have updated to Android version 4.0 to receive notification of the new software update
01-01-2013 7:17 PM
Same EXACT issue....at least there's relief that it's not just me. Pain in the rear though because I've missed phone calls. Would love a fix to this problem ATT.......we pay you enough so get on it!
01-02-2013 7:20 AM
Has anyone talked to AT&T on this?? They obviously don't monitor these forums or they might respond here. Mine has been better after doing a restore but it shut off twice yesterday with no warning. The last time battery life went from 45% to 15%.
01-02-2013 10:13 AM
01-02-2013 11:25 AM
I am having the same problem.
Not sure when it started exactly, but seems after the latest OS upgrade.
Any resolution to this?
01-02-2013 12:13 PM
I am running Lookout, thats the only anti-virus type app that I have. My warranty is out on my phone as its about 18 months old. When I talked to tech support I had the feeling they might let me upgrade since I am eligible in March anyway. But I really don't want to change phones, would rather this one work.
01-03-2013 1:39 PM
Mine started doing this as well after the last OTA update. This phone was working very well before that update. Very frustrating. Looks like AT&T does not have much to offer as well, as usual for any of these types of issues.
01-03-2013 3:25 PM
Same problem here. I have an i777. I didn't experience the sleep of death issues when running GB. It started immediately after updating to ICS 4.0.3. I allowed the 4.0.4 update because I thought maybe...MAYBE... the problem was finally addressed. No such luck. I could root and try freezing/uninstalling random bloatware, but why should I have to do that? The phone should just work.
The situation reminds me of my Captivate problem. Basically, it was the same: it put itself into dead sleep after a full charge. I know from forums all over the web that this was a huge problem with Cappys, but never addressed by the manufacturer, AT&T, or Google. However, I found an app in the Market called Captivate Keep Alive. It prevents deep sleep. It worked pretty well on the Cappy, and I'm wondering if it will work on the GS2. They are both galaxy phones. I'll give it a try & report back. Regardless, we shouldn't have to deal with problems like this, and we shouldn't feel like we must jailbreak our phones to get them to work.
01-04-2013 12:10 PM
I've posted this in another forum and thought I should post here too. Don't laugh. I know most people suspect it's a software issue, but I'm so frustrated with this problem that I'm willing to try anything.
I have the Samsung GS2 with AT&T (i-777 model). Not sure if you still have this shutting off problem, but I have it too. It's happening more often recently like 2-3 times a day. The phone doesn't get too hot, but I do see the battery charge drop, and one time when I woke in the morning the entire battery was drained. Several weeks ago, it was shutting off like once every 2 weeks and I didn't mind it. Now it's p*ssing me off. So after reading the suggestions, I decided to uninstall APPS. At first I uninstalled things I didn't use like games and utilities. Didn't work. Then I uninstalled APPS that just ran in the background like anti-virus, security and this one called Android Assistant. Didn't work. I was ready to give up and do a factory reset. I pulled the battery out and place it back in, but then I noticed the battery SLIDES A BIT IN THE BATTERY SLOT. The battery makes connection over a few spring loaded copper contacts, but I was able to move the battery away about 1-2mm. That's when I decided to push the battery as much as I could toward the copper contacts and wedge a folded up piece of paper to the other side of the battery. Basically I was trying to prevent the battery from sliding back. After that, my phone haven't shut off by itself in a day. This is the longest time it has NOT shut off. Will update again in couple of days. Fingers crossed.
01-04-2013 5:45 PM
2 weeks ago 4.0.4 update after same proplem. evveryday 1~2 time shut off from sleep mode, becouse any other button not working..
only battery take off after working.....
how can i do..... at&t poor firmware. how can i downgrade.
01-05-2013 10:09 AM
I said I'd report back after trying an app solution. The one I ended up trying is called Wi-Fi Keep Alive. Basically, it does what the other app I mentioned does: it keeps the phone from sleeping completely. In this case, the object is to prevent wi-fi connectivity from dropping. I do think the wi-fi radio, and its interaction with the OS, has something to do with the SoD problem. Again, I didn't have it when running Gingerbread.
I installed this app right after I posted on the 3rd, and haven't had a shutdown since. Battery life is great. I'm not ready to declare this THE ANSWER, but it's looking good. And I am not connected to the app's developer in any way.
01-05-2013 12:07 PM
I am still running Android 2.3 on my Galaxy SII, as I have had it over a year, and went through the mysterious shutoff problem as well.
As mentioned below, I noticed a bit of wiggle with the battery, and placed a layer of tape on the far side (away from the gold contact pins, and another several strips on top of the battery.
No problems now.
01-05-2013 12:08 PM
A couple of days ago, I disabled the "AT&T Smart Wi-Fi" application (which was automatically installed in the last OS update), as suggested by someone in another thread. Since then, my phone shut down only once (it used to shut down several times a day before that). I am hoping this "fixes" it. I'll post to this thread in a few days with what happens.
01-06-2013 5:22 PM
01-06-2013 9:02 PM
I am seeing this same issue since the recent OTA update on Dec-20, phone is shutting down around 3-4 time a day. Anybody has the solution. If i don't see the solution, i will have to ditch AT&T since i will have to buy new phone, then why not try some other operator.