For the past 6 weeks, 2-3 times a week my two-year-old iPhone 4S (with no replacement parts) has crashed in the middle of use. I get a black screen with a spinner, and then it powers down. After switching back on manually it seems to be fine until the next crash.
I've deliberately not upgraded to iOS 7 (running 6.1.1 since Feb 2013) as I want to try to get another 6 months or so out of this device, and don't want to worry about possible slowness / battery problems with an older device (although I'm not after advice about whether those problems are likely), as I'm already getting pretty poor battery life.
A full restore via iTunes, home/lock button resets and all the usual voodoo haven't stopped the crashes.
As I've not changed anything major (the OS or my usage habits) I'm wondering:
- is battery age or the general age of the hardware (although I don't s'pose many other parts degrade over time) likely to be causing this?
- could it be all the apps that've been upgraded for iOS 7 have introduced some instability on older versions of the OS?
- or am I barking up the wrong tree altogether?
In case it helps, these are some examples of recent times when I've had crashes:
- 36% battery, device locked and playing audio via Instacast
- 22% battery, copy/pasting in Safari
- 40% battery, switching apps after copying from Instapaper (log below)
Thanks Andrew Larsson for the helpful comment suggesting I post a crash log (duh!). The only one that's clearly from a time I know there to have been a crash is as follows (I don't know exactly what it means, but I think the filename is a pretty big clue!):
LowBatteryLog2013-12-10-213852.plist Incident Identifier: D5FFF38F-7B82-4545-AA06-5A25F2411801 CrashReporter Key: 3c892d901eba49956f927e0ee3cbf520ebfad207 Date: 2013-12-10 21:38:52 +0000 OS Version: iPhone OS 6.1.1 (10B145) apsd: com.apple.apsd-connectionestablish-push.apple.com NoIdleSleepAssertion == 255, held for 00:00:09 backboardd: Instapaper-UIKitBackgroundCompletionTask [0x1ed4da60]/UIKitBackgroundCompletionTask [0x1ed52ae0]/UIKitBackgroundCompletionTask [0x1ed5a3c0] NoIdleSleepAssertion == 255, held for 00:00:41 SpringBoard: com.apple.springboard.idle NoIdleSleepAssertion == 255, held for 00:13:59 Hardware Model: N94AP Awake Time: 05:17:06 (19026) Standby Time: 10:26:06 (37566) Partial Charge: 1 Capacity: 0 Voltage: 3550 mV
Any other suggested crash logs to look for?