Hello there.
I had the same 3 problems on my iPhone 4S :
- Automatically switch back on after switch off
- Sometimes no "iPhone speaker" choice when playing music
- Rapid battery drain and Usage time = Standby time
I had the iPhone dock connector replaced and all 4 problems disappeared for a week. Unfortunately, after a week the Rapid battery drain and Usage time = Standby time reappered, although I can switch the iPhone off (and it will remain switched off) and I no longer have the disappearing iPhone speaker problem.
Any one out there who has a solution for this last one problem ?
Thanks in advance for your help,
Antonio