I have an Avengers Infinity Quest premium that is bone stock except for a Stern gem stone shooter mod that has been installed for a while. There is no shaker motor installed and no recent mods or changes have been made. It was playing normally, and now I cannot successfully complete a 3 ball game unless it is a really, really short. Any game that is not a complete suck fest ends with a slam tilt error which terminates the game.

The only threads I have found that mention a slam tilt error refer to a Stern service bulletin that specifically applies to games with shaker motors. The resolution in that case is the capacitor kit, which makes it sound like a power issue. Anyone have any experience with something like this on AIQ or maybe another Spike based game?

On the odd chance that it could be SD card related, I downloaded the latest game image from Stern and wrote it to a new SanDisk class 10 SD card. Stern shipped an ADATA brand card in this game. The SanDisk card is at least as good as that. The same error occurred on the first play after booting from the new card. So, I'm guessing it's not the SD card or out of date game code.