Flight mode turns off wifi but not the modem (cellular)

[calinb]

After hours of trial and error, I flashed the custom firmware (v.0.7.3) onto the modem like described here: https://github.com/the-modem-distro/pinephone_modem_sdk
They also describe how to flash the stock firmware.
<snip>

I'm experiencing problems much like what you had with your PP. I tried to flash v.0.7.3, including with sudo and sudo su, but only got this each time:

Code:

$ ./flashall
Sending AT+QFASTBOOT...
                                                  FAILED (remote: 'unknown command')
fastboot: error: Command failed
fastboot: error: cannot load 'appsboot.mbn': No such file or directory
./flashall: 8: exit: Illegal number: Failed to flash the bootloader

What am I missing? I did apt install fastboot adb

The only place I have an appsboot.mbn file is in my archives of the OEM modem firmware (and yes, I did sudo updatedb first):

Code:

$ locate appsboot.mbn
/home/mobian/quectel_eg25_recovery-EG25GGBR07A08M2G_01.003.01.003/update/appsboot.mbn
/home/mobian/quectel_eg25_recovery-EG25GGBR07A08M2G_30.006.30.006/update/appsboot.mbn

I'm running mobian. Thanks for any tips or guidance!


Update: I had the source files only (duh!).  It flashed but still no luck getting it to connect to my cell provider's network. Signal strength is normal. It finds the network with ModemManager GUI but will not activate. The SIM card works on my old Moto G4.