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Thursday 31 May 2018 at 09:09
Pull the PC in the head and reseat the ram. And reseat the prism cards. Also check the PC battery. Then put it back in and try it. If it is still doing it. Check, and try reseating the connectors to the board in the bottom of the cabinet. If that doesn't work, it's a deeper issue.
Than just somethin...
Source: http://pinside.com/pinball/forum/topic/rfm-stuck-on-starting-update-game-code#post-4427041