Updated Cellular on UBR and now no connectivity on T-Mobile

Hello,

We updated the cellular model on our new UBR-LTE-US-T-PRM to version 02.30.01.01(AT&T,GENERIC,SPRINT,VERIZON) and now we cannot connect to T-Mobile. Any help on returning the modem to the previous version of the firmware or a fix would be helpful.

Thanks - Alex

Please open a ticket for us to check the actual cause,