@b0ddah Just complementing:
Remember that there is a possibility to use external software, it is easier, we recommend:
https://www.youtube.com/watch?v=G388Gc6kkRs&list=PL2oNQ0AT7fx2ExiSNrfHUzga5GnogI4sh&index=22&ab_channel=Recalbox ARRM:
https://forum.recalbox.com/topic/11850/arrm-another-recalbox-roms-manager?_=1609592968003