I have activated a Metro by T-Mobile physical SIM, on the Metro Unlimited 5G plan. The IMEI on the GL-X3000 is set to an unused IMEI from an unlocked Metro-compatible iPhone SE 2022. 5G data is working with no problem, however, SMS is not. The first time I powered on the GL-X3000 with the SIM present, I received 4 text messages. However, it has never received text messages afterwards. I can send/receive SMS if the SIM is moved to the iPhone. However, Metro requires that a 2-factor text be sent to the phone number associated with the SIM, with no way to turn off 2-factor or change the 2-factor number/method. Therefore, the inability to receive text messages via the GL-X3000 is very annoying, as it's required to manage the Metro account. Does anyone know what might be wrong?
I was on the latest stable firmware, and upgraded to the latest beta firmware to see if the issue was resolved (it wasn't). More details:
Firmware: 0704release2
Module version: RM520NGLAAR03A03M4G
Cellular settings:
Protocol: QCM
APN: fast.t-mobile.com (does not work with fast.metropcs.com either)
TTL: 65
HL: 65 (IPv6 is not enabled)
MTU: blank (optional)
Authentication: NONE