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  1. Thread Author  Thread Author    #1  

    Default Galaxy S3 auto-restart problem

    I purchesed my S3 over a year ago and lately I'm having some problems with it.
    A month ago it began to auto-restart, about twice a day, and after a week of doing that it went into a boot cycle - turned itself on and when it got to the samsung logo phase it restarted again.

    A friend of mine help my to recover the phone and was able to get the software up so I could use the phone, at that point I factoy reseted it hoping that this problem would go away.
    A day later it started to auto-restart again and i'm afraid it will go into a boot cycle again.

    Someone told me that the best and only thing to do is to root it and change the device ROM, a thing i have never done to my phone.

    What do you think is the problem? and how can I get rid of it??

    Thanks.
  2. #2  
    Orlan2's Avatar

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    Default Re: Galaxy S3 auto-restart problem

    it has happened to me as well several times, but it doesn't get stucked on the loop, when it starts to happen i just pull the battery out for at least a minute then i pull it back and turn the the phone normally, but i do think that a really annoying problem that just happens out of the blur.
  3. #3  

    Default Re: Galaxy S3 auto-restart problem

    zvika,
    You can try clearing the system cache in Recovery mode (with the phone completely off, press and hold the Volume Up and Home and Power buttons simultaneously, and release them all when you see the Samsung splash screen. When the Recovery menu appears use the Volume rockers to navigate through the items and the Power button to select an item).

    Unless there's some other reason that you really want to root your phone or load different ROMs, I'd suggest just reloading the stock firmware. Here's an overview of what to do:
    - if you don't already have the Kies software installed on your PC, download it (just search Google) and install it. The first time it runs it'll update itself to the latest version so make sure you run it once before proceeding.
    - put your phone in Download mode: with the phone completely off, press and hold the Volume Down and Home and Power buttons simultaneously, and release them all when you see the Samsung splash screen
    - connect the phone to your PC with the USB cable that came with the phone
    -- if you've never had the phone connected to your Windows-based computer before, you'll see messages about installing drivers, etc - just wait until this is done (may take 5 or 10 minutes) [I don't know what happens if you have a Mac - it probably just works]
    - in the Kies software, select the second item in the Tools menu and just follow the prompts to enter the model number (in CAPS) and IMEI/Serial Number (both found under the battery - it's ok to remove the battery at this point)
    - the Kies software should start downloading the correct firmware for your phone from the Internet; once that's done (depending on your Internet connection speed) it'll begin downloading that to the phone (this probably takes 10 minutes or so)


    Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM 10.2 using Tapatalk 4
  4. #4  

    Default Re: Galaxy S3 auto-restart problem

    I just ran into this problem yesterday w/ my S3 (T999).

    First it started w/ intermittent restarts throughout the day.

    Battery pull - no fix
    deleted chrome & FB - no fix
    Wipe cache on recovery screen - no fix.

    Then later that day it went into power on/off repeatedly w/o fully booting up. Remove battery, soon as the battery was re-installed it would attempt to power itself up. After several attempts it finally loaded. Once It loaded I powered off correctly, wiped cache on next power up. I then went into
    Settings>application manager>all>touchwiz home>clear data.

    After I cleared the data I powered down properly, wiped cache again and on power up everything seems fine now. Wiping the data on touchwiz deleted all the apps & I widgets on my screens. It looked like an out of box S3 w/ my background wallpaper. So I set my phone up like I had it before and it's been running normal so far today knock on wood. Hopefully this works, next stop rooting.

    T999 4.1.2 unrooted



    Samsung Galaxy S3 via Tapatalk
    Addicted to phones, cameras and all things Radio Controlled!!!
  5. #5  

    Default Re: Galaxy S3 auto-restart problem

    UPDATE*** Phone began doing the same thing again, finally it will not even fully turn on making it a paperweight. I did some digging and had my phone completly torn apart last night and I belive a faulty power switch is the issue. I placed an order for 3 new switches from eBay for $10 shipped US seller. I'm fully believing it's a hardware issue now, not software.
  6. #6  

    Default Re: Galaxy S3 auto-restart problem

    Have your phone fixed with the things you bought?
  7. #7  

    Default Re: Galaxy S3 auto-restart problem

    I'm writing this with my gs3, which would have been impossible before. I finally found the fix for the random rebooting. The solution that worked for me was to root and install cyanogenmod, then I installed an app called 'trickster mod'. Then I set the CPU frequency to run at minimum 800. Thats it. If your phone runs fine whilst playing games like CSR Racing then this is propably the fix for you to. I'm not sure you have to run Cyanogenmod, but you need root. The downside to this fix is that the battery gets drained a bit faster, still good thou.
  8. #8  

    Default Re: Galaxy S3 auto-restart problem

    Quote Originally Posted by Andy12321 View Post
    I'm writing this with my gs3, which would have been impossible before. I finally found the fix for the random rebooting. The solution that worked for me was to root and install cyanogenmod, then I installed an app called 'trickster mod'. Then I set the CPU frequency to run at minimum 800. Thats it. If your phone runs fine whilst playing games like CSR Racing then this is propably the fix for you to. I'm not sure you have to run Cyanogenmod, but you need root. The downside to this fix is that the battery gets drained a bit faster, still good thou.
    How do you set the CPU frequency to run at minimum 800? Becuase I got the app and in the general tab where CPU frequency is it says the minimum is 20,000.

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