The weird thing is that when the headphones are plugged in I get sound through the headphones and the speaker together. It's just that the speaker is really quiet.
When I plug in headphones I get normal sound and volume control through it. Also when headphones are plugged in I get sound through the speaker but it's very quiet volume adjustment works for it too.
I just did a recap of an original GBA. I lifted the positive pad of CP3, wouldn't turn on. So I ran a jumper wire to pin 8 of U4, now I got power and video. I have no sound coming from the speaker. What could be the problem?