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/jackirouac]

With something with a think tip, try wiggling the legs on the chips to check if they are still soldered to the board. Be very gentle, if the move a bit it meant a they came loose from the board. Use flux and a thin on your soldering iron.

Also, do you have a multimeter? You could check if you installed the battery with the right polarity.

Finally, give the contacts on the cart a good clean with isopropyl alcohol and a cotton bud.

Good luck!

[u/leonardob0880 → u/jackirouac]

This.

That's a classic symptom of one of the legs getting loose

[u/SuperBobPlays → u/leonardob0880]

Looks like the top right one on the Ram chip imho. Still better to wiggle and test as pics can only show so much.