Originally Posted by ixtab
The procedure looks correct, as far as I can see. Try with the ge.tt diags kernel / partition (lines 18 and 20 in the pastebin).
Thank you. Tried but failed.
Actually I suspected another thing.
After I set the bootmode to diags by using "fastboot setvar bootmode diags", I try to check the var I set by "fastboot getvar bootmode" and it remains as main.... but when I try to reboot by "fastboot reboot", the machine response and restarted (the tree screen flashed). Don't know if this is related or is just the same as other machines here.