Hi Folks, wondering if anyone has managed to successfully downgrade their 2.x carts to 2.2 via nlMidi?
I followed the instructions & managed to succesfully transfer the updater.gba helper ROM to the GBA resulting in a black bar and then the "0000 0000" screen appearing on the GBA as described but when I finally try to transfer the nanoloop22.gba ROM to the GBA although the buffer content begins counting up on the MAC the GBA screen does not count in sync and remains permanently at "0000 0000".
I had thought it was possible to downgrade an NL2.7 cart running 2.8.2 but I could be wrong!
I tried various cables and the inital helper updater updater.gba ROM always seems to transfer fine.
I did notice that the nanoloop22.gba file when loaded in the buffer is 7680k rather than the 8192 k that is quoted in the instructions though, not sure if that has any bearing.
Cheers!
Last edited by janza_slope (Jan 28, 2018 8:02 am)