I FIXED MY DRAINAGE AND PHANTOM USAGE PROBLEMS ON MY IPHONE 4S RUNNING 5.0.1
- I did a full backup to iCloud
- I placed my phone in DFU mode did a restore from iTunes
- I skipped iCloud setup on the initial setup screens
- Then I redid iCloud only activating contacts,calender,
bookmarks and find my phone. - Then i turned off contacts, calender, bookmarks *after they appear in myphone*
- Left find my phone on
- And installed all my apps manually (took a while) and thats it
KEEP IN MIND EVERYTHING ON MY IPHONE IS TURNED ON---BLUETOOTH, SIRI, RAISE TO SPEAK, LOCATION, WIFI, AND ICLOUDS FIND MY IPHONE. JUST TURNING OFF ICLOUD BEFORE THE RESTORE IN DFU DID NOT FIX MY PROBLEM. NO PHANTOM USAGE. PHONE FEELS LIKE IT WILL LAST FOR 2 OR MORE DAYS WITH MODERATE USE!
NORMALLY I WOULD WAKE UP WITH AT LEAST 3 HOURS OF USAGE EVEN THO I DIDNT TOUCH MY PHONE!!!! MY BACKSCREEN IS EVEN SET TO 5 MINUTES.
iPhone 4S, iOS 5.0.1