• replace mainboard due to boot failure _{— Updated on 2018/11/22 14:09}
• Flash vendor image opm7.181105.004 _{— Updated on 2018/11/14 23:53}
• Flash vendor image opm7.181005.003 _{— Updated on 2018/10/10 02:00}
• Flash vendor image opm6.171019.030.k1 _{— Updated on 2018/09/10 21:33}
• Flash vendor image opm6.171019.030.h1 _{— Updated on 2018/08/14 20:12}
• Replace swollen battery _{— Updated on 2018/08/10 04:12}
• Flash vendor image opm4.171019.016.a1 _{— Updated on 2018/05/16 00:30}
• Upgrade lineage OS to 15.1 (Oreo) _{— Updated on 2018/03/01 15:58}
• Flash franco kernel : Change kernel with franco kernel _{— Updated on 2017/09/19 21:24}

Solved Problems

vendor mismatch error

After flashing nightly image from Lineage OS (also possible any custom ROM), device shows vendor mismatch error - Download AOSP image bullhead image and extract vendor.img and flash vendor image (This action needs only when AOSP build number is changed) - SOLVED

  fastboot flash vendor vendor.img

systemless root configuration

Secure Settings does not recognize rooting because of systemless root.

  adb shell
  su
  mount -o remount,rw /system
  touch /sbin/su /system/bin/su /system/xbin/su
  mount -o remount,ro /system
  exit
  reboot

Or create required directory using file manager like Solid Explorer with root permission SOLVED

Known Problems

check current of non-compliance cable

  adb shell 
  cat /sys/bus/i2c/drivers/fusb301/*/fclientcur

If the result is 3000 an A to C cable is noncompliance

Possible values

• 0 - standard USB charging
• 1500 - 1.5 amp type C charging
• 3000 - 3 amp type C charging

3000 with A-C USB cable is not safe.

change hostnames in LineageOS 15.1

In LineageOS 14.1, changing hostnames in settings menus. However rename hostname is not available in 15.1 yet.

sudden drop in battery level

Launching Duo makes battery level to below 30% suddenly. Due to a personal configuration in Tasker, device shutting down.