Database Info

Hard reboot

Okay so your supposed to be able to hold the power button for 10 to 15 seconds for the phone to do a hard reboot but it doesn't work.
On my nexus 7 and kindle fire I can just hold the power button for 10 to 15 seconds if the device locks up or freezes on me and it will do a hard reboot but on the SGS3 it doesn't reboot, I held the power button in for over a minute and nothing happened, sometimes my phone locks up or freezes on me and its a pain to have to pull the battery out in order to reboot as I have a cover on my phone.
Am I doing something wrong? Is there a combination of buttons I am supposed to push for it to work? Any help will be much appreciated.
Sent from my Nexus 7 using xda app-developers app

Hmmm, I am able to use this regularly when my phone has problems. Had an SOD on CM10, and also a lockup in TWRP and was able to reset the device with the power button. Sorry I cant offer anything other than saying that you dont appear to be doing anything wrong.

Holding the power button doesn't force a reboot for me or my dad either. I didn't see anything in the manual about forcing a reboot either. AFAIK pulling the battery is the only thing that works.

I got the infamous black screen the other day and had no clue what was going on. I'd never gotten it before on any of my Android devices so I was freaked out. I thought I may have killed something. I tried the power button / volume rocker to no avail. Pulling the battery was the only thing that worked.
Thank you Samsung for giving us a removable battery.

My wife has the GS3 too and I have tried holding the power button for 10 to 15 seconds and nothing happens. Weird that some phones it will reboot and others don't while holding the power button.
Sent from my Nexus 7 using xda app-developers app

I just tried. Nothing happened
Sent from my SCH-I535 using xda app-developers app

Power button works for me and I've done it, let me see, 10+ times. It doesn't work right away sometimes, but a few iterations of holding down power for 15 seconds, release for 1-2 seconds, holding it down again, and so on works every time for me.
I haven't taken the back off my phone yet. Well once, to see how to do it, but I didn't need to so I promise the power button works.
EDIT: As luck would have it, I had to do a hard reset on my phone shortly after writing this and I actually hold volume down and power (no volume up or home button) and I cycle through holding it down for 10 seconds, letting go, holding it down, etc. I don't know if it's just my phone, but it vibrates after a couple iterations and I know it's good to go. I always keep my phone on vibrate though so I don't know if that will apply to you.

On the topic of needing to hard reset our phones, am I the only one who's phone deals out about once a day? As in locks up and flickers like it's having a stroke...just curious
Sent from my Galaxy S III using Xda Premium

topolovich said:
Power button works for me and I've done it, let me see, 10+ times. It doesn't work right away sometimes, but a few iterations of holding down power for 15 seconds, release for 1-2 seconds, holding it down again, and so on works every time for me.
I haven't taken the back off my phone yet. Well once, to see how to do it, but I didn't need to so I promise the power button works.
EDIT: As luck would have it, I had to do a hard reset on my phone shortly after writing this and I actually hold volume down and power (no volume up or home button) and I cycle through holding it down for 10 seconds, letting go, holding it down, etc. I don't know if it's just my phone, but it vibrates after a couple iterations and I know it's good to go. I always keep my phone on vibrate though so I don't know if that will apply to you.
Click to expand...
Click to collapse
sometimes a locked up phone will reboot on its own and it always vibrates first. you may just wasting your time with all the button pushing

[Q] Phone won't boot into recovery or otherwise

Hi there,
Sorry but I think I finally found the right forum for this and I wanted to take one more stab before kissing this phone goodbye.
I have a Rogers Galaxy SGH-i727R. About three weeks ago, the phone started re-starting on it's own. I though maybe it was a sticky power key and had that replaced. The problem persisted. I then noticed that it was primarily upon receiving text messages that the phone would reboot. So it seemed it was a software issue. I am running the stable build of CM9.
Yesterday the phone rebooted and never got off the angry alien screen. I pulled the battery, charged it etc and still could not get it to fully boot up. I left it for over an hour. I finally decided to call it quits and re-flash the phone. Problem is, it will not boot into recovery at all. When I hold down Vol + - and Power, it jsut goes into a loop of vibrating every three seconds until I let go and then it tries a normal boot again. Once, I briefly got a screen saying I was trying to install custom software and to press volume up to do so, but before I could hit volume up, the phone cycled off.
I should also mention that the four buttons on the bottom of the screen do not work. I accidentally sliced the wires on the side of the phone when opening it up. I use a software button saver widget to access their functions. I wonder if that issue is related....
Thanks for any advice. I would like to get into recovery so I can load a new ROM or a stock ROM.

If you haven't ventured there yet in this forum I'd recommend Vincom's roundup on just about everything http://forum.xda-developers.com/showthread.php?t=1652398. I don't know if it will help much in your situation but it's worth a look. Also, you may want to research usb jigs, not sure if they will work with our devices though ... research is the key word.

tonyrage.stc said:
Hi there,
Sorry but I think I finally found the right forum for this and I wanted to take one more stab before kissing this phone goodbye.
I have a Rogers Galaxy SGH-i727R. About three weeks ago, the phone started re-starting on it's own. I though maybe it was a sticky power key and had that replaced. The problem persisted. I then noticed that it was primarily upon receiving text messages that the phone would reboot. So it seemed it was a software issue. I am running the stable build of CM9.
Yesterday the phone rebooted and never got off the angry alien screen. I pulled the battery, charged it etc and still could not get it to fully boot up. I left it for over an hour. I finally decided to call it quits and re-flash the phone. Problem is, it will not boot into recovery at all. When I hold down Vol + - and Power, it jsut goes into a loop of vibrating every three seconds until I let go and then it tries a normal boot again. Once, I briefly got a screen saying I was trying to install custom software and to press volume up to do so, but before I could hit volume up, the phone cycled off.
I should also mention that the four buttons on the bottom of the screen do not work. I accidentally sliced the wires on the side of the phone when opening it up. I use a software button saver widget to access their functions. I wonder if that issue is related....
Thanks for any advice. I would like to get into recovery so I can load a new ROM or a stock ROM.
Click to expand...
Click to collapse
All I can tell you is that your problem sounds exactly like a stuck power button. I know you replaced it but all the symptoms you point out suggest stuck power button. Maybe try cleaning it again?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

rushi.1986 said:
All I can tell you is that your problem sounds exactly like a stuck power button. I know you replaced it but all the symptoms you point out suggest stuck power button. Maybe try cleaning it again?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
yes but i wouldn't rule out
I should also mention that the four buttons on the bottom of the screen do not work. I accidentally sliced the wires on the side of the phone when opening it up. I use a software button saver widget to access their functions. I wonder if that issue is related....
Click to expand...
Click to collapse

rushi.1986 said:
All I can tell you is that your problem sounds exactly like a stuck power button. I know you replaced it but all the symptoms you point out suggest stuck power button. Maybe try cleaning it again?
Click to expand...
Click to collapse
But if it were a stuck power button it would not stay on the loading screen indefinitely, no? If I hold down the power button while booting, it will turn the phone off.

Hold vol +- and pwr until it vibrates let go of pwr continue to hold vol +-. You were letting go of all of them at once going by your described method.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

mtdew said:
Hold vol +- and pwr until it vibrates let go of pwr continue to hold vol +-. You were letting go of all of them at once going by your described method.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
****. I am a total moron. The phone still reboots after receiving a text but I was able to boot into recovery. Thanks.

[Q] Won't turn on, stuck in bootloop?

I have a black 16GB (stock, unrooted), received last Friday. A couple of hours ago it shut down on me while still having ~60% charge. Now when I power on, the Google logo with the black background comes on before shutting down. When I have it plugged in, same Google logo comes up and then keeps restarting to that same point.
I've tried getting into the recovery menu with Power + Vol down, but as soon as I get in, the phone reboots on me. Any ideas...?

When you get to recovery, press and hold power then immediately press volume up. The menu should come up and wipe data.
Sent from my Nexus 5 using Tapatalk

Sounds like it could be a stuck power button.

Thanks for the suggestions guys, I think it is/was a stuck power button. Couldn't manage to get it to do a wipe, but shook the phone a bit and spammed the power button (methodical, I know) and it seems to be working alright for now.

Spamming the power button is the way I'd do it. lol If it keeps happening though you might have to take it apart and clean it. Here's the ifixit teardown but I hope it doesn't come to that.

Phone won't boot

Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?

rosscarrothers said:
Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?
Click to expand...
Click to collapse
Provide more information for a starter - stock? unlocked bootloader? rooted? third party recovery? rom and if yes which?
If it's stock I'd RMA it.
If not what did you do immediately before the problem started?
try holding the power button for > 2 seconds which should turn it off completely, leave it on a wall charger for at least a couple of hours then turn it back on - I doubt it'll fix the problem but it's a simple thing to try...

Clancy_s said:
Provide more information for a starter - stock? unlocked bootloader? rooted? third party recovery? rom and if yes which?
If it's stock I'd RMA it.
If not what did you do immediately before the problem started?
try holding the power button for > 2 seconds which should turn it off completely, leave it on a wall charger for at least a couple of hours then turn it back on - I doubt it'll fix the problem but it's a simple thing to try...
Click to expand...
Click to collapse
Everything on it is stock, no ROM, not rooted. I had just taken it out of my pocket to check the time, put it back in my pocket and then felt it vibrate, took it back out to see it at the Google logo and haven't been able to get it started since. There was one or two times when it got past the Google logo and started to show the start up animation (the four colours bouncing around or whatever it is) but then it shut off again.
I tried holding the power button to completely turn it off, but plugging it into the wall charger just causes it to repeatedly attempt to boot like I mentioned earlier. I'll leave it for a while and hope for the best

Sounds like the mobo is bad. Most likely will have to rma it.

rosscarrothers said:
Hey guys,
My phone shut off unexpectedly today and now won't turn back on. When I try to power it on I see the Google logo for a couple seconds and then it'll just shut off again. I tried holding the volume up/down buttons to access the bootloader, but right after I get to the screen it just restarts itself again.
Connecting to power (AC or USB) causes it to constantly reboot over and over, it just shows the Google logo for a couple seconds and then restarts again.
Any ideas on what I can do?
Click to expand...
Click to collapse
Do you have a case on? The case could be faulty.
Sent from my Nexus 5 using Tapatalk

jd1639 said:
Sounds like the mobo is bad. Most likely will have to rma it.
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Click to collapse
Maybe not. Sounds like a stuck power button to me.
OP does the phone just endlessly repeat this cycle? If so it's rebooting itself do to a stuck power button. One other users already reported similar issues and his power button was indeed stuck. Mash the power button hard for a minute to see if you can unstick it.

theesotericone said:
Maybe not. Sounds like a stuck power button to me.
OP does the phone just endlessly repeat this cycle? If so it's rebooting itself do to a stuck power button. One other users already reported similar issues and his power button was indeed stuck. Mash the power button hard for a minute to see if you can unstick it.
Click to expand...
Click to collapse
You got it!
Thanks so much, really wasn't looking forward to waiting for weeks while the RMA went through. The button didn't appear to be stuck - it was still clicky - but after mashing it for a minute it started up normally and appears to be fine now.

Did you flash any ROMs or anything previously?
Sent from my Nexus 5 using xda app-developers app

scottdouglasdick said:
Did you flash any ROMs or anything previously?
Sent from my Nexus 5 using xda app-developers app
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Click to collapse
brother the issue is gone, as mentioned "sticky power button" was causing it. read the thread before posting. btw thanks for effort anyway... haha
:laugh::silly:

Hi all. Sorry to reopen an old thread (but xda suggested I check here before making my own thread).
I think we have the exact same problem with a Nexus 5. Unfortunately, bashing the power button doesn't seem to be helping (and makes me feel slightly silly .
Anyone know how much effort it would be to take it apart to get to the part that's stuck? Any good instructions?
Thanks.

Weird, I have the same issue starting a few hours ago. I updated to the Oct 17 beta of Cataclysm then a hour later it happened. But was told it sounds like the power button issue.
Took it apart, tried to fix it. If plugged in I can get into the bootloader, but then it reboots again. I've tried tapping it on a hard surface, and it gets seems like it almost fixes it because it'll connect to my laptop but then reboots again.
Could it be the battery? It was fully charged but then died as I was deleting hundreds of photo's in Dropbox to move photo's over from my phone because it was full.

I too am running into this same issue. My screen cracked so I replaced the digitizer with some success. In the process I damaged the battery and needed to replace it. When I got the new battery and replaced it my phone is now unusable.
When unplugged: I turn on the phone and it's running the ANDROID animation then turns off.
When plugged in: I turn on the phone, the ANDROID animation runs then the phone restarts and continues the process over and over again.
I then flashed the phone with Marshmallow and the same thing happens. Except now that I flashed it I get the Android icon with the spinning gear. So; I flashed it back to 5.1.1, but the same result.
Could I have physically damaged something inside or is it a battery issue? Thanks for any insight.

Black screen?

so out of no where, my opo decides to not turn the screen on?
when I press the power button, I see the hardware buttons light up but I see nothing on screen. It's just black.
The led turns on when I plug it in.
Got any idea what to do?

Long press power and force your phone to turn off. Then turn it back on. You're having a sleep of death issue.
Sent from my One A0001 using Tapatalk

I've had this issue for several weeks, even on the new build. I wish there was a fix for this because it happens to me almost twice a day. I just wonder if flashing a new kernel would help.

zephiK said:
Long press power and force your phone to turn off. Then turn it back on. You're having a sleep of death issue.
Sent from my One A0001 using Tapatalk
Click to expand...
Click to collapse
I had to hold down power and volume down button for about 10 secs and turn it off.
Turn it back on and voila