issues with openmenu and codebreaker

[dreamcast459]

if i press the y button while im at the openmeu screen after powering on the DC it goes straight to the bios

this means that your SD card still has an old version of openmenu.
after you updated the openmenu on the PC, did you insert your SD card into the PC and update the menu on the SD using the "Save changes" button in GDMENU Card manager?

a full format on the sd card fixed my issue the only other question i have for you is how do i add new cheats to the code breaker list vmu tool in dream explorer cant see it and some games like resident evil 3 for example dont have the codes i need/want