Develop Bugs

After power off, won't always turn on

Not sure this is a known issue or just me. But often if I power down the phone will not power back on unless I take the battery out for like a min, then put it back in. I've noticed this running both stock and custom roms.

I've noticed this too, but it never requires a battery pull. I will power down my phone and try to power it on but it does nothing. I have to wait a minute or so to power on. Unrooted. Who knows

When it does this, hold the volume up for 30 seconds, let go, then press the power button and release. Works every time for me... but I haven't had this problem lately *knock on wood*

EtherealRemnant said:
When it does this, hold the volume up for 30 seconds, let go, then press the power button and release. Works every time for me... but I haven't had this problem lately *knock on wood*
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Interesting, will give it a shot.

That happens to mine quite a bit too, but if i let it sit for about 30 seconds or so it will reboot. I'm talking about when i shut the phone off then immediately try to reboot it, so i think it boils down to the phone completely shutting down for a little bit after the screen turns off. Maybe i'm misunderstanding what you're saying here, but i don't think it's just your phone.
AmRuThWo

Tmobile SG S2 Software problem or power button

MY galaxy s2 has problems with powering off every now and then. it was really bad at one point where all it was doing is turning on and rebooting right after. i had a custom rom for months and never had problems until yesterday. i couldnt go on recovery mode because it would always restart every five seconds. Now it seems to less frequent because i realized that it always reboots when i touch the power button once. Sometimes when i push the power button to take it off sleep mode, the power options pops up (recovery, restart, power off etc) so thats when i thought the power button might be the problem
Any guesses on what could be the problem?? If its software problems or power button issue.
P.S. reset my phone, re rooted it, and put a new rom darkside. It literally stays on until i push the power button. then it restarts five seconds later.

the power buttons seems to stick....I have the same problem, the phone is acting as if the power button is being pressed without being let go. When the power button is held indefinitely it just keeps rebooting over and over again. It occurs sporadically, but once it sticks..it sticks. I seem to be able to unstick it by slapping it against my hand but eventually it turns off. Its definitely a hardware issue and I will open up the phone right now to investigate. Ill write if I find anything useful.
albert-557 said:
MY galaxy s2 has problems with powering off every now and then. it was really bad at one point where all it was doing is turning on and rebooting right after. i had a custom rom for months and never had problems until yesterday. i couldnt go on recovery mode because it would always restart every five seconds. Now it seems to less frequent because i realized that it always reboots when i touch the power button once. Sometimes when i push the power button to take it off sleep mode, the power options pops up (recovery, restart, power off etc) so thats when i thought the power button might be the problem
Any guesses on what could be the problem?? If its software problems or power button issue.
P.S. reset my phone, re rooted it, and put a new rom darkside. It literally stays on until i push the power button. then it restarts five seconds later.
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Hitting the power button on my phone makes it go crazy

Has anyone else experienced this? If I hit the power button on my phone, the screen goes crazy and it eventually goes off. It starts to turn back on but then during the boot animation it just cuts off again. If i boot into recovery, it cuts out there too. I was trying to wipe my phone but it wont stay on long enough. I'm running the new cm 10 stable.

Saw this in another thread and they came up with a faulty power button. Either it's getting stuck or the actual connection is effed. Does it stick a little when pressed as in is it not fully popping back up? Because if it's happening in recovery too than that seems to be the case I would think. Have you had your device for a while now or is it newer?

Yep, sounds like a sticking button. The phone is hard wired to reboot when the power button is held for a number of seconds, no matter what is going on (it's equal to a battery pull), so if the button is stuck, you're in a loop.
Sent from my beastly Galaxy S 2.

[Q] Please help! Random power off won't boot!

Okay I will try to sum this up. My S3 was working fine and everything randomly I noticed issues with battery calibration It would be 100% then I would calibrate it and then unplug and then I'd instantly drop to 85%. Thought It was a battery issue and made a point to get a new one later. Then it kept working for another month or so then It started really screwing up the shutdown menu would randomly pop up and I'd back out of it.
Then randomly 3 seconds later the phone reboots. And it would keep doing that randomly I thought it might be a power button issue. Then as time goes on it got really bad to where it would simply reboot and not make it past the bootloader, It would not "reboot" more like a complete shutdown then I'd have to power it again and have it do the same thing. Seeing how I could not even make it past the bootloader I got a new battery, waited a week for it and then I put it in and the same issue happened. It would not get past the bootloader.
So I kept trying and trying and trying and it finally booted past that. And it stayed on for a whole night. I did everything on it I normally would and it was working great. Then the battery was getting low so I plug it in and was going to calibrate it after it was charged, I go back to it and it's dead again won't get past the bootloader once again. I'm completely out of ideas on how to fix this I pop'd off the button and blew in there and the button seems fine and everything still no change. I also can not get into recovery. It trys and loads but then shuts off. Anyway if anyone has any ideas on what this is or how to fix please help! I need my phone back! Thank you.
I'm running MOAR Lite version.
UPDATE: Took the phone apart and took a close look at the button it looks 100% fine...I saw a video on youtube that requires you to complete tear the button off and it works. But I don't know if the button is my main cause of this issue or if it will actually work. Some says it works, some says it does nothing...Please let me know thanks...
UPDATE 2: It will show that battery with spinning circle in it for like 1 second then turn off again. (When it is plugged in)

That's odd. But when it comes to the power button, dismantling and what not 90% of the time will show 0 issues. It will look perfectly fine when it's not. You playing with the power button I assume were pressing hard and normally to try testing it. It's a common issues on this version of the S3 to have faulty power button and you would need to get it repaired. Odly even slightly atmospheric changes can cause it to act different at different points. Some days it works fine, other days a very slight brushing over can cause it to screw up and trigger a manual shut down (holding for like 10 or 15 seconds).
Assuming that it is the power button, or to try, just do a variation of things to the power button itself. Use your finger nail to jiggle it around with different pressures. During boot if it shuts off, it could be the power button internally stuck, just jiggle it around.
This is all I can think of unless you bring it in to get repaired.

I was encountering the exact same problem. I would try to get into download mode and it would sit at the "Downloading" screen for about 5-7 seconds then the display would go blank. It won't make it into recovery either. Based on the above recommendation I took the whole phone apart and sprayed a lot of compressed air directly on the power button mechanism and the plastic case pressing the button in. I didn't see anything broken with the button when I did that.
It seems to be working now, I can boot into my Rom. Don't know how long this fix will last.

[Q] S6 Edge refuses to power on.

Hello, I've been using the T Mobile S6 Edge since the day it came out not had a single issue with it. Well today I unplugged it and used it for about two hours straight (browsing reddit in bed). I then turned the screen off and went to make a coffee, pulled the phone out to dial a number and nothing. Pressed home, pressed power, pressed and held home and power and power and volume up. Nothing. Just put it in the charger and no response. The heck is going on? Any help would be appreciated, Thanks.

Go to a tmobile store and exchange it. Same thing happened to a friend of mine.

alexhood93 said:
Go to a tmobile store and exchange it. Same thing happened to a friend of mine.
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OK I took the phone to tmobile after troubling shooting and as soon as I handed it to the guy he presses power and it booted right up... Like wut. I'm still puzzled as to how it happened and he didn't even have an answer for me I just hope it doesn't thappen again.

mhm_besa said:
OK I took the phone to tmobile after troubling shooting and as soon as I handed it to the guy he presses power and it booted right up... Like wut. I'm still puzzled as to how it happened and he didn't even have an answer for me I just hope it doesn't thappen again.
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Next time, hopefully there won't be a next time, this happens, try putting the phone in the download mode. Turn off the phone and press volume down, home, and power. Then press volume down not up to restart your phone.

vanessaem said:
Next time, hopefully there won't be a next time, this happens, try putting the phone in the download mode. Turn off the phone and press volume down, home, and power. Then press volume down not up to restart your phone.
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OK I'll try that since that may have been the only button combination I didn't try. Thanks for the tip.

This happened to me also...Couldn't do anything with phone...Couldn't put in download mode or anything. .
Went to tmobile and needed my receipt so headed back home and then it turned on without doing anything
...

mhm_besa said:
OK I'll try that since that may have been the only button combination I didn't try. Thanks for the tip.
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Yeah, what you're describing happened to me the other day. At first, I thought my battery died or something but ruled that out. Holding the power button didn't work so I figured I would put it in the download mode and restart that way. I've had this happen to me on rare occasions with other Android devices I've owned so I don't think it's unique to this particular device. It's just weird and kinda scary.

Cheers for the tip Vanessaem :good: My S6 refused to switch on & on my old phone S2 I used to just remove & re~instore the battery & switch it back on, but obviously we can't do that with the S6 so I was confused So I tried your button combination :victory:

For future reference, Vol Down and power for about 10sec will force a power down.