Hi Zedopaido,
Just a quick note to say thank you for all the information and files you have posted to revert back to the JTV 1.71 firmware.
I have recently bought a new JTV-69 to be used primarily in a 60's cover band. I was particularly impressed with the acoustic 12 string sounds.
Being very naïve, I updated everything using the monkey, that was a BIG mistake!! I remember the guitars firmware was either 1.70 or 1.71 prior to updating. The updated acoustic tones are awful and thought there was no way to roll back the firmware until I read your notes on this forum.
I'm about to revert back to 1.71 once the battery has fully charged.
Thanks once again.
M.