Yamaha Motif XF Stuck in update mode

I have a Motif XF and is stuck in update mode. When tried to update it says the version and everything of the update and the following message appear: This update is for MOTIF XF, Please Turn OFF.

I tried going to TEST mode as per service manual but it doesn’t go, keep loading update mode.

I see boot sequence and apparently is loading the kernel, so I don’t see what’s going on.

Everywhere suggestion is DM replacement, but I don’t really understand why except for a hardware failure, I just see a software problem not a hardware failure.

Any light on this will be highly appreciated. Thanks.