Originally Posted by nkk71
1- remove tampered set locked
2- run / flash ruu 1.28.401.7
3- boot up once to make sure everything is OK, do NOT take OTA
4- go S-ON if you really need to
so if your bootloader is now:
* and the ruu has been successfully installed.
you can go ahead and S-On your device.
All still LOCKED and installed RUU. So now S-OFF with the writebootflag 3 or what ever correct.