Code :

Code: F6DX ... F75X
Description: An error is detected at the External Server management section
Remedy: 1) Check the external server and check function. 2) Chekc the connection to the external server and check function. 3) Check the network settings and check function. 4) Replace the bridge board and check function. 5) Replace the main board and check function. 6) Retrieve the USBLOG and contact the Service Administrative Division.