Nano Freezes

Hello , I just upgraded to 3.64 , I find when I go to ME or FI the nano freezes. I downgraded to 2.0 and it didnt freeze . Is there a download of 3.63 in hex format.


Found a version of 3.11 , seems to work fine also , I guess maybe another version of 3.64 in case the one I have is corrupted or something, mine is Alfs download …does anyone have a link to another in hex format ?