If you have a clone Gdemu, you likely have a faulty or incorrect crystal on your g1 bus that needs to be replaced. Reference the following tweet for fix. This is partly why I am against chinese knock offs.
https://mobile.twitter.com/citrus3000ps ... 7803078658
Thanks to Citrispsi3000 for finding this issue.
https://www.mouser.com/ProductDetail/?q ... Ik0w%3d%3d - Crystal Replacement