iPhone 6 + plus reboots with a 'hangover' after battery recharge from power supply
I charge my my iPhone 6 plus overnight via a power-supply USB charger. Invariably, the next morning, there are several faults in the performance of the iPhone, which I collectively characterise as "hangover" behavior!
The most recent incident today, as part of my investigation.
- I disconnected the USB charging cable
- I called the iPhone from my landline
- I noticed the iPhone go through a restart process: the apple logo displayed, I saw a red full screen flash briefly.
- The phone call was diverted to voicemail.
- I called the iPhone two more times from the landline. Only the third call went through to the iPhone in a normal/expected fashion. I was alerted by a cellphone service provider text message that my second call had been missed.
My expectation is that after a charge, the iPhone should just be ready to operate and receive calls without my touching any buttons to check it is alive and ready to operate.
I have an iPad 2 that demonstrates none of these kinds of problems. The iPad is up and ready to go each morning after an overnight charge.
I have been keeping an irregular log of other faults I have noticed as shown in Table 1 below.
It's only after people have attempted to phone me in the morning that I realise I have had this "hangover" behaviour on my iPhone. They complained I was not answering the phone, though I had believed my phone was in an operable state. Annoying!
This was a brand new replacement iPhone 6 + provided in early March to replace an earlier version that very quickly went totally delinquent within its first two-three weeks of operation. For instance I was unable to restore the iPhone from iTunes.
I updated the iOS to 8.2 soon after receipt in March.
I notice regularly that the Settings app performs pathologically. ie: shows blank screen, crashes. Restarts app. blanks screen. Then Settings just seems to loop until I attempt restart.
Table 1: Fault log - iPhone
2015-3-20 8:03 am wifi Bluetooth failed. Fixed by restart. Tile app failed to register.
2015-03-22 App Settings not opening. Crashes shows blank screen forced to restart.
2015-03-23. Net not connected though 4g icon showing. Forced to restart. Settings not opening. Safari not searching. Notes ok.
2015-03-26. Restarted after failed to wake up. Notifications views then froze
2015-03-27 failed to turn on after overnight charge. Forced restart.
2015-03-28 ditto Unable to receive calls.
2015-03-30 unable to connect to iTunes. Settings failed to open showed 83% energy when should be full. Forced to restart. Now connects to iTunes. Charge now shows 100%
2015-03-30 Began more systematic investigation. Connected to charger. Left to sleep and charge a while. Called iPhone. iPhone failed to respond. Rebooted by itself whilst call being made. Call went to voicemail. A third call rang iPhone OK.
iMac, iOS 7.1.1, iMac11,3 (May 2011)