Hey guys, my first messages are at the gameboy channel. I changed the battery of Emerald and it worked out fine but on saphire i had struggled a lot.(with the "-" Pole at the top right)
Now when starting the usual Gameboy advance Screen appears but after that it goes white with cracking noises. I cleaned multiple times with Iso 70%.
It might be that theres a bridge between U1 and CPI ( see pic)
Can someone confirm?