Lora E5 Test Packet not sending

Hello, I have built a PCB with the Lora E5 Module.
I am using the UART interface on PB6 and PB7 with the default factory software.

I send, ("->" Send to LoraE5 module, “<-” Response from LoraE5 module)



→ AT+TEST=RFCFG,916,12,125,12,15,14,ON,OFF,OFF

← +TEST: RFCFG F:916000000, SF12, BW125K, TXPR:12, RXPR:15, POW:14dm, CRC:ON, IQ:OFF, NET:OFF


And there is no response from the module and my Dev module set to receive the packet does not receive anything, I do not know why and I do not know where to go with fixing this issue.

When I use the dev LoraE5 Mini module it responds with ← +TEST: TX DONE
I’m assuming an error is occurring however there is no return error code I don’t know how to fix this.
If you require more information please do not hesitate to ask.

Thanks, Harry