Latest suggestion to fix modem instability?

[feklee]

My attempt at flashing the modem bricked it. What to do? 

Here's how I proceeded, with error messages at the end:

1. Checked version of ADSP firmware:
   
   Code:

   $ mmcli -m any --command="AT+QGMR"
response: 'EG25GGBR07A08M2G_01.001.01.001'
2. Upgraded to ADSP version 01.003.01.003:
   
   Code:

   # cd /tmp
# wget https://github.com/Biktorgj/quectel_eg25_recovery/raw/EG25GGBR07A08M2G_01.003.01.003/update/NON-HLOS.ubi
# echo -ne "AT+QFASTBOOT\r" > /dev/ttyUSB2
# fastboot flash modem NON-HLOS.ubi && fastboot reboot
3. Flashed the Biktorgj firmware, and that failed:
   
   Code:

   $ cd ~/src
$ wget https://github.com/Biktorgj/pinephone_modem_sdk/releases/download/0.4.2/package.tar.gz
$ mkdir firmware
$ tar xzf package.tar.gz -C firmware
$ cd firmware
$ sudo ./flashall
Sending AT+QFASTBOOT...
FAILED (remote: 'unknown command')
fastboot: error: Command failed
Sending 'aboot' (486 KB)                          OKAY [  0.024s]
Writing 'aboot'                                    OKAY [  0.209s]
Finished. Total time: 0.244s
Rebooting                                          OKAY [  0.018s]
Finished. Total time: 0.068s
< waiting for any device >
OKAY [  0.002s]
Finished. Total time: 0.003s
Sending 'boot' (4566 KB)                          OKAY [  0.150s]
Writing 'boot'                                    FAILED (Status read failed (No such device))
fastboot: error: Command failed
./flashall: exit: line 11: Illegal number: Failed to flash main kernel

---

Phew fixed, Biktor pointed me to the recovery instructions: My modem won't boot anymore

Afterwards, flashing went smoothly.