Sorry to hear that. Were you able to fix this issue? If not, then perhaps reinstalling the ROM might help.
Unfortunatly i was not able to fix, i do all wipe and reinstal but no luck.
I return back to CM11 from Epirex. GPS is very ...
You just have to copy it from your i9070P before upgrading in "/system/lib/tee" and replace it in the zipped rom from Epirex and then flash your phone.
Many Thanks for your job and good luck for your exams...