Hi all,

I am using 4G/LTE Smartphone Jiayu S3 Advance (3GB ROM & 16 GB Memory).

Lately difficult to get GPS lock with it, so my navigation hardly work/functioning.
I am suspecting that there is a GPS switch some where in the Setting that I could not find.

Any body can help me please, or may be caused by another problem.
I do need this GPS navigation.

Secondly is there any way with this Jiayu we can transfer/move any installed apk into SD Card to free the phone memory ?