u/Left-Acanthisitta728

Good evening, I have these two guitars from the "Guitar Hero World Tour" edition for PS2. One (the one on the left in the photo) works perfectly with both dongles. While the other one (the one on the right, without the star), does not connect to either dongle. The connection light comes on, but nothing happens. I followed the manual for the connection, but everything is fine with one, but not with the other... I read around that I have to change the dongle, but how is it possible? They're identical, yet one works and the other doesn't. I don't know if there's a button or capacitor that needs replacing. Help me figure it out.