Thank you for your informations .
Just want to know full factory restore means factory rest right?
Sent from my GT-I9500 using XDA Premium 4 mobile app
Yes , even format your internal memory, but of course Backup your information
I have done this with my Tablet Z and every lag (except in settings-Enable GPU acceleration-) has been solved.
:good: But Indeed , with a 720p Display (ZR), you will have better performacne than a 1200p one (Tablet Z)