Put F/W ~v2.2.7 with run=1 loadrun.ini on your TFTP server. (including user.ini) 6. Downgrade F/W with Bootrom menu. (Select Upgrade for downgrade.) ...
Please check the followings in advance. - Bootrom version ... [Procedure : You must downgrade Bootrom first.] 1. Put Bootrom v1.1.2 on your TFTP server. ...