ju-06 problems with even Banks

[filippo.tommasi]

I'm a proud owner of JU-06, but, for several days, i've a little problem:
the even banks' bottons don't work only for the patch. For Exemple if I want set the patch 23 doesent work, if I set the patch 16 it works very well; also the backup mode (I press bank 2 and turn on the module) and reset mode (presso bank 1 and turn on) doesent work.
But if I enter in the other mode (for exemple if I set MIDI Clock Source, manual + bank 2 or Led DEMO manual + bank 8) it works well.
I done the 1.20 update with out problems

Do you have some advise?