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E602

1) Are the connection and the cable of the connector (J1017) on the main controller PCB and the connector (J1551) on the hard disk drive normal? NO: Correct the cable connection.Hard disk drive (HDD), Main controller PCB
2) Try replacing the hard disk drive and downloading the system software.Is the problem corrected?
YES: End. NO: Replace the main controller PCB.

3) HDD unit.
Remove the rear upper cover and the reader rear cover. Remove the three screws, and detach the cover, Remove the two screws and disconnect the two connectors then, remove the HDD unit. Remove the six screws and detach the HDD When mounting the HDD unit,be sure that the flat cable is under the plastic sheet of the HDD upper case.

Solution 1# :
It can be a Sector Problem ,to resolve it just press 1&9 keys at the same time the machine started the HD Diagonose and it repared the sector error without replacing the HDD .

Solution 2# :
try to go in to disc check service mode to clear the sectors ,this should work if it doesnt you will need to replace the hard drive .

Solution 3# :
Try HD clear & then HD check for every sector in service mode. Then try to upgrade system software;If nothing works change hard disk ,format & install system software.