T
echnical 
B
ulletin  PAGE: 3/7 
Reissued:05-Nov-12 
Model: 
GR-C1
 Date: 
18-Oct-12
 No.: 
RD117035a 
 
 
2-2  Insert the SD 
card into the 
lower slot.  
This is the same SD card from Step 1-1.  
 
The main power switch 
should still be OFF. 
2-3 Turn the 
main power 
switch ON. 
After a short interval, the part number and version 
will appear on the LCD. 
NEW: D1171450 
NEW: 1.18.1 
 
Touch "OpePanel (1)", and then touch "Update (#)" 
to start the update. 
 
Never switch the machine off 
while the firmware is 
downloading. 
2-4 Updating is in 
progress. 
"ROM update is completed" appears on the LCD 
once the update is complete. 
 
If this message does not 
appear after at least 10 
minutes, turn the main power 
switch OFF (see Step 2-5).  
 
Then do Step 2-3 again. 
Touch