My Mega SD cart will no longer boot to the menu screen. I get the "produced by or under license from Sega" prompt but after that just a black screen. The green LED light is still on, but nothing comes up.
I updated my firmware by downloading my update and renaming the file "_____forced.upd" and so I was able to update, however nothing on the screen ever came up during or after that process. I reset the settings by creating a file called "reset.cfg" at the root of my sd card. The LED light blinked, indicating that the reset took effect. However, same thing again, the Mega SD menu never came up. I tried using three different Genesis hardware units and the same thing occurs each time. Using official Model 1 with official power supply.