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Thursday, June 17, 2010
an iPhone power mystery and a solution
Have been having some hassles getting an iPhone restored from backup.
Got it all working, and then all of a sudden it was draining down to zero battery and running very hot.
I wandered around the usual Internet mess of theories and complicated solutions, until I found
iPhone Battery Drain Issue – a Solution!
The indicated cause is a bug in the Exchange implementation, which (based on the symptoms) is getting the CPU stuck in a loop or something, pegged at max usage until the phone dies of battery drain. The solution: delete the Exchange setup. Worked for me.
Article says you can then re-enter the Exchange config information and the bug probably won't be triggered, for whatever reason.