Could my battery issue be fixed by a clean restore?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by JerTheGeek, Dec 19, 2014.

  1. JerTheGeek macrumors 68000

    JerTheGeek

    Joined:
    May 15, 2014
    #1
    Hello all,
    Got a question about iOS 8 and my 5s.
    I have been experiencing mediocre battery life on my 5s, only around 5 hours. Apple's diagnostic test said the battery is fine, in good condition. I have changed a lot of settings such as turning bluetooth off when not in use, turning off background app refresh, turning off several location service things, etc. But I still get the mediocre battery life. I am starting to think that it is a software thing and maybe it is due to me restoring from a backup on this new 5s. See, I had a similar issue with battery life on my 4s, and that phone was backed up and that backup was restored to this 5s. Could there be something wrong with my backup, some glitch or something messed up? Or should I try a clean install of the OS and then restore from the backup?
    Please help me as to what I should do, backup and fresh restore, or just fresh iOS install?
    Thanks in advance,
    JerTheGeek.
     
  2. XT550 macrumors regular

    XT550

    Joined:
    Sep 30, 2014
    #2
    I'd go for a restore to factory settings and set the phone as new. I would not restore from backup.
    There's also the DFU restore that's known to help with battery issues.
     
  3. JerTheGeek thread starter macrumors 68000

    JerTheGeek

    Joined:
    May 15, 2014
    #3
    What is a DFU reset?
     
  4. XT550 macrumors regular

    XT550

    Joined:
    Sep 30, 2014
    #4
    Could my battery issue be fixed by a clean restore?

    DFU (Device Firmware Update) mode is a means to getting your iPhone to interface with iTunes without iTunes automatically loading the latest version of iOS onto it (it skips the iBoot bootloader, for jailbreak aficionados). Differing from recovery mode is where iTunes restores your iPhone to its original factory settings but with the latest iOS and firmware. (If you don't choose a backup, that is)
    Plug your device into your computer
    Turn off the device by holding the Sleep/Wake or Power button and swiping it off
    Hold the power button for 3 seconds
    Begin holding the Home button without releasing the Sleep/Power button for 10 seconds
    Release the power button and continue holding the home button until you get a popup from iTunes that your device is recognized as being in recovery mode.
    That’s it, you’re in DFU mode. If you get stuck in DFU mode and need to get out, just hold the power button and home button simultaneously until the Apple logo appears.

    Note that all the while you're in DFU mode your phone screen is completely black.
     

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