Just an FYI...we had a C652 that a user inadvertently pulled the RU connector while it was powered up. After this the MFP would come up to the splash screen, generate a C-D272, and power itself off and this would repeat until main power was shut off. Trouble reset was the same, Trouble reset would display, but then MFP would reset itself again. Tried f/w reload, PRCB, and power supply with no help. We had to drop MFP back to ver 26 just to get into service mode where we could now re-install hdd and then go back to ver 90. Hope this info will save someone from pulling out their hair. Emujo
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