Maybe the APN data was wiped. I don't know. Try to manually insert your data APN.My Lumia completely freezes 1 hour ago,i did a soft reset,but now i dont have data connection. I have WP 8.1 DP. Im just asking did anyone have similar or same problem?i know its Developers preview,so i jus post a question out of curiosity.
Thanks
Noo,i checked that of coursei lost then H+,H and E signs...in the upper left corner of the screen ...and the Data conn in cellular +sim was checked,i unchecked and checked again and nothing ....