Share your experience!
Is your GPS on?
Is it set to high accuracy ?
Any magnetic protective case?
I've merged your posts, noticed that you posted on another thread that wasn't not relevant to your issue.
Boot on safe mode and check again
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008
Moved to the correct section.
I have the same problem, and have tried all suggestion on this page,
1. GPS On
2. Set To High Acuracy
3. No magnetic protection case
4. Boot on Safe Mode
5. Repair with PCC (Xperia Companion)
but the problem is still happening.
Thank You.
Did anyone ever find a solution?
I have tried all the options and currently backing up my phone and will transfer files to computer hard drive.
Then will try a factory reset and see if that fix the problem.