On 2016-01-18 00:42, Guy Harris wrote:
On Jan 17, 2016, at 11:14 PM, Paul Eggert wrote:
iPhone 6s and iPhone 6s Plus users are reporting that their phones are sometimes showing plenty of charge left even though their batteries are actually depleted, leaving some users stranded out of power. Apparently users who change their time (e.g., to gain unfair advantage in games like Candy Crush Saga) can confuse iOS 9.2 into not updating the battery percentage indicator. A similar problem can occur to users who set the time zone manually. One workaround is to reboot and revert to getting date and time from the network.
(So what happens if whatever daemon is responsible for monitoring your location notices you've crossed a time zone boundary and changes the time zone *for* you? "Set Automatically" enables that.)
It appears that also causes the problem, as would following their workaround instructions. Apple article at https://support.apple.com/en-us/HT205727 says: If your iPhone 6s or iPhone 6s Plus battery percentage doesn't update If you change the time on your iPhone 6s or iPhone 6s Plus manually or *change time zones when traveling*, you might notice that the battery percentage doesn't update. It recommends: 1. Restart your iPhone; 2. Change settings to Set Automatically. These instructions should probably be reversed as it changes the time zone, which causes the problem! -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada