WARNING: MAY RESULT in WIPING OUT 505's INTERNAL MEM (equal to a Hard Reset, won't damage the firmware), BACKUP FIRST, AND TRY IT AT YOUR OWN RISK! STEPS: 1. connect 505 to PC, create a directory called FONT (note all upper case) under its root directory. 2. put your customized Unicode font files in FONT directory (three files tt0003m_.ttf,tt0011m_.ttf,tt0419m_.ttf, with the font family name "Swis