Roland VersaEXPRESS RF-640 Service Notes page 195

The machine goes into the Firmware Upgrade
7
mode automatically.
When upgrade is completed, the Sub Power SW
turns off automatically.
HOW TO INSTALL FIRMWARE (Referential Time : 10 min)
This is required when a new Main Board without the fi rmware is installed.
Turn on the Main Power SW while pressing [
1
[ ] keys.
Press [ENTER] key to set the machine ready to receive the
2
fi rmware.
FIRMWARE V1.10
ERASING
WRITING
VERIFYING
COMPLETED
], [ ], and
4-16
NG
DATA ERROR
NG
DEVICE ERROR
NG
DEVICE ERROR
DEVICE ERROR
NG
+
UPDATE FIRMWARE?
UPDATE FIRMWARE?
[ ]
WAITING
000.000.000.000