Doesn't usb loader gx boot legit disc also?? If so i recommend using that cause its more recently updated.
Gecko Os, I'm fairly sure it runs on IOS36, I'd try installing a clean latest version of IOS36, with Trucha Bug (FakeSign Bug). and if your booting it from a forwarder channel or custom channel, I'd recommend trying to run it straight from hbc. Make sure your also using the latest version of gecko os and if there is a configuration file stored on the sd card try deleting it.
Is this the only game it code dumps on??
This is the only advice I can give and my memory may be foggy, so I may be wrong.