iPhone shuts down randomly, rst vdd_under

Discussion in 'iPhone Tips, Help and Troubleshooting' started by ChiSaw, Mar 19, 2015.

  1. ChiSaw macrumors newbie

    Mar 19, 2015

    i have a problem with my iPhone 5S.

    A few weeks ago it started to shut down randomly, sometimes 10 times a day. It just turned off. I suspected it was the battery, so i replaced it, but it didn't stopped. But it only shuts down, when its running on the battery. If i have it on the power plug it runs fine.

    I looked at the diagnostic data and saw a lot of ResetCounter entries with exact that time when it crashed starting at that day when a replaced the battery. All the days before i replaced it were filled with LowBattery entries like this:

    Incident Identifier: 88437E57-EDCB-46D0-BF4F-ED80CD72C765
    CrashReporter Key: 444932e96edba90279b56e6bbc65a6bf3bfb6334
    Date: 2015-02-22 13:33:10 +0100
    OS Version: iPhone OS 7.1.2 (11D257)
    SpringBoard: com.apple.springboard.idle NoIdleSleepAssertion == 255, held for 00:00:41
    Hardware Model: N53AP
    Awake Time: 04:15:50 (15349)
    Standby Time: 28:00:28 (100828)
    Partial Charge: 1
    Capacity: 0
    Voltage: 3667 mV

    After replacing the battery the ResetCounter entries started. Here is an example entry:

    {"name":"Reset count","bug_type":"115","os_version":"iPhone OS 8.1.3 (12B466)"}
    Incident Identifier: A01C9870-64C5-46B4-A4B3-35029BE0CBD2
    CrashReporter Key: 444932e96edba90279b56e6bbc65a6bf3bfb6334
    Date: 2015-03-01 16:08:41 +0100
    Reset count: 0
    Boot failure count: 5
    Boot faults: rst vdd_under
    Boot stage: 80
    Boot app: 2681261667

    Has anyone an idea? I searched a lot about "rst vdd_under", but never find an answer except that i should replace the battery. Should i replace it a second time (I think it isn't the battery particularly because i just replaced it). But vvd_under sounds to me that the iPhone recognize a too low voltage.

    I already restored iOS, but that didn't help.

  2. Vinexfred macrumors newbie

    Mar 25, 2015
    iPhone 5s IOS 8.2 shuts down randomly

    Same problem here.

    First restored my Iphone, no solution, then replaced the battery no solution, cleaned my lightning port and still the same problem occurs.

    For now my iPhone even won't start up. It continuously reboots when charging and in a loop then give's the battery low signal...

    When I Disconnect > and then Connect > the phone gives the Battery low sign > then the Phone reboots > Apple logo > the Phone shuts down > the Battery low sign > then the Phone reboots > Apple logo > the Phone shuts down etc.

    Because the battery is new and charged, the phone does not respond to an hardware reset I'm rather desperate

    Any clues ?? Thanks in advange

Share This Page