One other thing to check... did you have more than one SIM installed in the phone? We've been working on a bug where the mobile-data SIM selection can switch to the wrong SIM after a reboot or operator switch/re-registration ( such as what can happen when signal is lost ).
See bug #1413672 for details. We on-track to have a fix in the next OTA update that addresses this issue.
@costales
One other thing to check... did you have more than one SIM installed in the phone? We've been working on a bug where the mobile-data SIM selection can switch to the wrong SIM after a reboot or operator switch/ re-registration ( such as what can happen when signal is lost ).
See bug #1413672 for details. We on-track to have a fix in the next OTA update that addresses this issue.