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mcu ap upgrade fsd
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AP 2 to AP 3 upgrade w/o MCU upgrade - MCU issues
2017 S 75D. Had the FSD upgrade without the MCU upgrade. MCU had been replaced about a year ago and was working fine. After the upgrade, the MCU crashes about every 2-3 hours on long drives. It will freeze, or the navigation will freeze, or it will go blank then reboot. Rebooting (manually...