Hi
Iv seen things like this happen on gameboy cartridges and it id usually due to ether damaged traces on the PCB, Loose pins on a Chip or corrosion
The best thing you can do is open the cartridge
Here’s a disassembly guide for that:-)
https://m.youtube.com/watch?v=raw6ve2fcr...
Once opened make sure that all chip connections are good ,make sure there’s no corrosion and the PCB looks to be in good condition
If any corrosion is found ,isopropyl alcohol is a good cleaner
If any loose pins are found you can resolder them back to the PCB
And if any traces are damaged a jumper wire will need soldered to close the gap:-)
Hopefully this helps
Any questions please ask
Thanks:-)
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Other games work perfectly fine by the way.
crwdns2934271:0crwdnd2934271:0 Daniel Cooper crwdne2934271:0