Cant connect T-Mobile SIM to QUECTEL RM502Q-AE

IoT Modules 5G Module
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Hello everyone,

I’m trying to connect a Raspberry Pi W2 to a module that includes a Quectel RM502Q-AE, but I’m encountering some issues. When I run the AT+COPS=? command, I can see available networks, including T-Mobile (313790) and FirstNet (313100). However, when I attempt to manually select a network using AT+COPS=1,2,"313790",7 or similar variations, I keep getting an error.

I’ve also tried setting automatic network selection with AT+COPS=0, but I’m still facing difficulties.

WhatsApp Image 2025-02-01 at 3.28.10 AM
WhatsApp Image 2025-02-01 at 3.28.10 AM1600×991 130 KB

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Dear @Stryker180
AT+COPS=? was serching th额network.
But you should mark sure your SIM card was allowed to register on these network.