@meme94 Well, you didn't watch the entire video, it mentions that if you have a previous version, it's best to watch this video:
https://www.youtube.com/watch?v=2MbU7IEVkLk&list=PL2oNQ0AT7fx2ExiSNrfHUzga5GnogI4sh&index=15&ab_channel=RecalboxRecalbox
But, I complement and say that this other video is also good for that:
https://www.youtube.com/watch?v=skeULeTu7p8&list=PL2oNQ0AT7fx2ExiSNrfHUzga5GnogI4sh&index=19&ab_channel=Recalbox