/vr/ - Retro Games

I have a super famicom that will only boot one game in my collection (pal fag so it's rather limited) and that game is magical quest starring mickey mouse and it has no sound. all the other games only boot to the first screen, like the nintendo logo or capcoms logo before it freezes. i have tried replacing the sound module and the cartridge connector but no luck.
I also recently bought a chinese super everdrive that boots and lets me chose games but the same problem with all other games i tried, including the snes test program.
The only games i have noticed "work" on it with the everdrive is the SFC controller test program and armored police metal jacket, which crashes at the char select.
any ideas?
Also it has a purple ting/lines when i use the everdrive, pic related