: Many users mistakenly use SCPH-5501.bin . That tiny dash is enough to break the connection for cores like Beetle PSX [2, 5]. Quick Fix Checklist
You cannot download this file from the emulator website. You must obtain it legally. scph5501.bin missing
– A correct, unmodified dump should have this hash: 8d5f5043d81a7c4eab0d67a4649ec2aa (for SCPH-5501) : Many users mistakenly use SCPH-5501