Cannot flash the modem firmware

[biketool]

Hello

Running "sudo su" before running "./flashall" helps, it works. When I turn on my Pinephone, it sees the SIM card anew. I haven't changed ADSP firmware this time. I have changed the udev rule but I still lose the connection When I try to flash the ADSP firmware, it just displays "waiting for any device". Please advise.

This is what I do to flash the ADSP firmware:
sudo su
echo -ne "AT+QFASTBOOT\r" > /dev/ttyUSB2
fastboot flash modem NON-HLOS.ubi && fastboot reboot

I tried to use minicom -D /dev/ttyUSB2 to get the current version of ADSP by using the command AT+QGMR but it just echoes what I enter, what am I missing?

Running "sudo su" before running "./flashall" worked on my old Pinephone but not on a Pinephone I bought several months ago, it stays stuck at "waiting for any device". It doesn't even work correctly on a brand new phone.

Is "mmcli -m any --command='AT+QGMR'" intended to work with the stock modem firmware?

sometimes it works better after a system shutdown, boot, login, and use ssh as root(sudo su) as soon as possible
Make sure you have ADB enabled (sudo sh -c 'echo -ne "AT+ADBON\r" > /dev/ttyUSB2')