iPhone shuts down randomly, rst vdd_under

hello,

have problem iphone 5s.

few weeks ago started shut down randomly, 10 times day. turned off. suspected battery, replaced it, didn't stopped. shuts down, when running on battery. if have on power plug runs fine.

looked @ diagnostic data , saw lot of resetcounter entries exact time when crashed starting @ day when replaced battery. days before replaced filled lowbattery entries 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 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 battery resetcounter entries started. here 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 idea? searched lot "rst vdd_under", never find answer except should replace battery. should replace second time (i think isn't battery particularly because replaced it). vvd_under sounds me iphone recognize low voltage.

restored ios, didn't help.

christian

 

iphone 5s ios 8.2 shuts down randomly

same problem here.

first restored iphone, no solution, replaced battery no solution, cleaned lightning port , still same problem occurs.

iphone won't start up. continuously reboots when charging , in loop give's battery low signal...

when disconnect > , connect > phone gives battery low sign > phone reboots > apple logo > phone shuts down > battery low sign > phone reboots > apple logo > phone shuts down etc.

because battery new , charged, phone not respond hardware reset i'm rather desperate

clues ?? in advange

 

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