Sega Sports DC

[y0]

My friend just got a DC that has Sega Sports on a black casing. The manufacturer date is July 2000. We tried playing back ups, but it keeps reseting. The only thing we've got to work is the NESter emulator. Some of the games load, but then it seems like they reset and then then screen turns black. Is this one of the DC's that won't work well with back ups. These back ups work fine with my DC.