Hacking EZ Flash iv doesn't work, Gets stuck on a GBC bootscreen

[Macdoo]

I recently bought an EZ Flash iv cart, and it hasn't worked so far. I've been fixing it up, newest firmware and all that, when suddenly every time I plug it in I get the Game Boy Colour boot up screen with Nintendo blacked out. Anybody have any idea what I can do to fix this? Thanks.

 

[FAST6191]

The actual Game Boy Colour boot screen because that would be odd? (GBC modes on the GBA and SP are launched by a little tab/switch being pushed down inside it).

A dodgy nintendo logo on the GBA screen usually indicates a bad header but in practice unless you are loading a game it tends to mean dodgy contacts so give them a clean (a cotton bud and some rubbing alcohol or proper acetone nail polish remover in a pinch- not the stuff mixed with other stuff unless you have proper contact cleaner).

 

[Macdoo]

The actual Game Boy Colour boot screen because that would be odd? (GBC modes on the GBA and SP are launched by a little tab/switch being pushed down inside it).

Ah, I see now. Seems I was just forcing the Flash Cart into the GBA (probably a bit frustrated) too hard. I pulled it out a bit from where it was and it works fine. I'll try cleaning it later, too. Thanks, Fast.