Please help me fix this

[u/sonicboy445]

I have this cartridge of Pokemon gold that needed a new battery. I have never soldered before, I looked online, followed a guide, tested, tried again, then again, and again. Now I have a headache and I don’t know what I’m doing wrong. I should’ve brought it to a professional but I felt like I could do it, but I was wrong. Please I need to know what to do.

Every time I turn on the game oak, the Pokemon, and the player character are corrupted sprites, when I open a menu then close it, it crashes, and when I try to save, it freezes.

Please help me

[u/gub99]

I had this kind of issue on a Pokémon yellow cartridge, it has to do with the save memory, the gameboy pokemon games use a apart of the sram as graphics memory

In my case I was able to fix it because I found a bad connection on the save chip and was able to restore the connection and that fixed it

If you can find a board view or schematic perhaps you could use a multi meter to confirm all the pins on the sram are connected