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TROUBLESHOOTING.md

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Troubleshooting

I flashed the firmware but the modem is stuck in fastboot

Fastboot needs a second reboot to clear the flag to force it into fastboot, please run fastboot reboot again Type in lsusb at your terminal and see if the following line appears and disappears after 2-3 seconds:

Bus 002 Device 004: ID 18d1:d00d Google Inc. Xiaomi Mi/Redmi 2 (fastboot)

I'm using your firmware and don't know how to enter fastboot modem

If you have ADB on, just run (as root): adb shell reboot; fastboot oem stay If you have ADB off, just run (as root): sudo sh -c 'echo -ne "AT+QFASTBOOT\r" > /dev/ttyUSB2'

My modem won't boot anymore

If your modem doesn't boot at all, you can try these to get into fastboot and flash it again

Distributions running eg25manager

  1. Open a root terminal and run fastboot oem stay &
  2. Turn off the modem kill switch, wait a few seconds and turn it on again
  3. Restart eg25 manager service (systemctl restart eg25-manager if using systemd)
  4. The modem will automatically start in fastboot mode

Distributions running Megi's modem-power kernel

Open a root terminal and run the following commands

  1. echo 0 > /sys/class/modem-power/modem-power/device/powered
  2. fastboot oem stay &
  3. echo 1 > /sys/class/modem-power/modem-power/device/powered

Getting logs to help with an issue

The best way to debug a problem is having all the available logs to be able to pinpoint what is going on and what caused it. Must have logs would be:

  • Pinephone's kernel log
  • Modem's kernel log
  • Logs generated by openqti (stored in the modem at /var/log/openqti.log)
  • If possible, NetworkManager, ModemManager / oFono and eg25manager logs will come handy too

If you're running a distro using Systemd, you can use @kkeijzer's script to grab them all in one go

Make sure you have ADB enabled (sudo sh -c 'echo -ne "AT+ADBON\r" > /dev/ttyUSB2') or the script won't work!

If you want to only get some specific log:

  • Pinephone's kernel log: dmesg > dmesg-pinephone.log
  • Modem's kernel log: adb shell dmesg > dmesg-modem.log
  • OpenQTI: adb pull /var/log/openqti.log
  • NetworkManager (if using Systemd): journalctl -u NetworkManager.service -e > networkmanager.log
  • ModemManager (if using Systemd): journalctl -u ModemManager.service -e > ModemManager.log
  • EG25-Manager (if using Systemd): journalctl -u eg25-manager.service -e > eg25-manager.log