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  1. Thread Author  Thread Author    #1  

    Default S4 won't turn on unless replacing battery, then turns off after two seconds?

    So my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button and it would not respond.

    Then I tried taking out the battery and replacing it, the device vibrates with the Galaxy S4 logo showing up for about a couple seconds, then the screen goes blank again.

    I even tried placing a battery from a different S4 - still doesn't work.

    Anybody know what's wrong with my device?
  2. #2  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    Welcome to Android Central! How old was the other battery you tried? It'd be ideal to try a brand new replacement battery--but if the one you tried is known to be reliable, that probably rules out the battery as the problem.

    Try removing the SD card and booting up again. A corrupt SD card can cause problems.
  3. Thread Author  Thread Author    #3  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    Hello Diddy, thanks for the welcome!

    Both batteries are around a year old.

    Just tried removing the sd card, didn't help with the problem. Also I have tried getting into downloader and recovery mode, still no response.
    I can get into download and recovery mode via inserting the battery, though.

    Such a strange problem. The device has been running with a flashed rom and rooted, and has no problems leading up until today's failure.
  4. #4  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    Try booting into Safe Mode, which disables all 3rd party apps. If the problem stops, then something you've installed is raising heck. If the problem persists, then something is wrong with either your hardware or firmware. Steps for Safe Mode at the bottom of this article: Reset: Samsung Galaxy S 4 | T-Mobile Support
  5. Thread Author  Thread Author    #5  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    Tried safe mode, could not get in.

    Screen shut off after a couple seconds as usual. Is the device hard bricked? What might have caused this problem?
  6. #6  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    How far along did you get in the Safe Mode boot process? Did it actually reboot into Safe Mode, then shut off? Or did it not even get to reboot?

    How old is your phone? If it's still within warranty, it's probably time to talk to Samsung.
  7. Thread Author  Thread Author    #7  

    Default Re: S4 won't turn on unless replacing battery, then turns off after two seconds?

    It didn't even get into safe mode.

    However, it did get into recovery mode or download mode, ONLY when I replace the battery to turn it on. It would show the screens for the respective modes, but turns off promptly in a few seconds.

    I believe that my phone is still under warranty, however it has been rooted and flashed rom. I would also like to retain the data that I have on my phone, that's why I want to attempt to fix it before resorting to claiming the warranty.

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