The problem is that your model doesn't have OK button. It seems to me that you need to change [menu] section in the keymaps.ini file in the following way:
Code:
[menu]
#KEY_BACK = MCMD_OK this one is not for PB302
KEY_BACK = MCMD_SELECT
#KEY_BACK, LONG = MCMD_CANCEL this one is also not for PB302
KEY_BACK, LONG = MCMD_OK
If this change does'nt help or something else doesn't work please let me know I will chek how to modifiy keymaps.ini to fix it.