Phone freezes after repowering up
I must be having some software issue because whenever I power off my phone and have to power back on (I travel a lot so I have to turn it off on planes), within 5 minutes the phone either automatically reboots itself, or more likely, freezes up and I am forced to do a battery pull. Sometimes I have to do this (pull out the battery after freezing) up to 8 times before the phone acts normally again.
Once the phone starts up normally, it's fine. The issue only happens after re-powering up the phone.
Any thoughts on what could be causing this? Any known issue with particular apps? Thanks.