tg77 retuning

Manuel and Tuning list,

Does any one know how to retune the Yamaha TG77?

I am trying to microtune it, but it does not accept a tuning. I tried using
SCALA commands @send and send/file (to be played with cakewalk), with no
luck.

Tried to turn off memory protection and I believe I found the place where
one can manually edit a tuning, which seems to be similar to the tx81z that
I have, and is the page in the tx81z where the instrument will accept a bulk
tuning dump.

Any ideas?

Darren Burgess