Hello,
I updated the Quectel EP06-A following your guide: Upgrade Quectel Module Software - GL.iNet Router Docs 4
The update was successful and the reply to gl_modem AT AT+QGMR is:
EP06ALAR02A08M4G_01.004.01.004
Unfortunately in Spitz web panel in the internet/cellular section I face a yellow warning "SIM card not registered" when using the exact same setting that were working fine before the update; the SIM is data-only and meant to be used in modem/routers to share connection. Same SIM in a phone is working.
I tried the command
AT+QPRTPARA=3
from Modem FAQ - GL.iNet Router Docs 3
but the problem remains.
AT+CSQ
+CSQ: 99,99
AT+COPS?
+COPS: 0
AT+CPIN?
+CPIN: READY
I tried countless combinations starting from the SIM provider instructions (Iliad Italy) but it seems to be stuck way before the connection/apn.
I also tried to update to latest beta V4 release of the GL-X750 and to roll back to V3, clean config etcetera, same SIM card not registered. It has to be something strictly related to the Quectel modem.
Any clue?