1) Unlock device
2) root device with means of your choice
3) adb shell
4) su
5) echo -ne "22222222" | dd of=/dev/block/mmcblk0p5 bs=1 seek=20
6) reboot bootloader
7) fastboot oem readcid
confirm change of cid
2) root device with means of your choice
3) adb shell
4) su
5) echo -ne "22222222" | dd of=/dev/block/mmcblk0p5 bs=1 seek=20
6) reboot bootloader
7) fastboot oem readcid
confirm change of cid