1) Update firmware to latest version
2) Format HDD reload firmware
3) Switch the DDR ram on system board
4) Swap entire control panel
5) Swap logic board
6) Perform Key Backup Restore in [3] + [C] Mode
7) Perform HDD checks in [5] + [C] Mode
8) system board or HDD
2) Format HDD reload firmware
3) Switch the DDR ram on system board
4) Swap entire control panel
5) Swap logic board
6) Perform Key Backup Restore in [3] + [C] Mode
7) Perform HDD checks in [5] + [C] Mode
8) system board or HDD
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