What would cause an unlocked, fully charged iphone 4 to turn its self off when using a straight talk sim
I had a common problem with my iPhone 4. Using it with maps, it drained the battery within an hour or so. I thought I destroyed the battery. I went to the Apple store, and they offered me a free of charge (3 years old phone) diagnose on the genius bar.
I had to unlock the phone and the genius started an app (I could not see what app) and then put it next to a iPad. The iPad had a program running and within minutes there was the report. The battery was almost as new, but there were a couple of apps, fighting for the first place and draining my battery. It was a known problem, caused by an old firmware (NOT THE OS). They offered me to update the firmware, and half an hour later i was outside with a great working iPhone 4. It still works perfect and I do have a battery life of 3 days (I don't make many calls)
So if you have time to visit the Apple store ask them the same. If he store is not close to you, I would make an appointment using the net. Before you leave to the store, make sure you have a backup, because they will wipe the whole phone.
Jul 17, 2014 |
Apple iPhone 4 Black Smartphone