Can't find default firmware

[aidiaz]

Hi LilyGO team! I have started developing with the T-SIM7600X board a few days ago and had fantastic results. I was trying to find the default shipped firmware (the one that came with the board to send AT commands via console) but can't seem to find anywhere in this repo (practically uploaded every arduino script and available .bin files).

I need the script to test the GNSS/GPS commands via console because I'm having a hard time with positioning system.

Greetings!