AR-M550 (serv.man17). (10) ROM version-up method - Sharp Copying Equipment Service Manual (repair manual). Page 6

AR-M550/M620  ROM VERSION-UP METHOD  10 - 6

When transferring ROM program files by using Fcopy.exe program,
copy Fcopy.exe program and the ROM program files in the same
folder and boot MS-DOS. Then, open the above folder on MS-DOS,
and type "Fcopy file name"and transfer is performed. In the example
below, the SFU file is placed in C:\ROM folder, and it is transferred.

 

YES

NO

YES

NO 

YES

NO 

Booted normally?

Remove the Flash ROM 
and replace it with a 
spare.

Write the on-board files 
collectively. (4.)

Result: OK?

Update completed

Write with the empty socket. 

(6.)

Result: OK?

Update completed

If the Flash ROM itself is 
defective, replace it with a 
new one and try again.

YES

NO

Write the on-board files 
collectively. (4.)

Result: OK?

Update completed

If the Flash ROM itself is 
defective, replace it with a 
new one and try again.