On my 640 XL, i get the name phone off on the tile. I am using the 640 XL on cricket. I am not sure how it got there I only i looked @ was data sense on the phone and had considered turning it on and decided not to as I have the 10 gig plan. I can place and receive calls without any issues most times but every once in a while it make 2-3 secs to place a call.
Suggestions
Suggestions