Ricoh G165 Service Manual page 200

Firmware Updating
6. SDC shows "Controller FW updating..." and the Alert LED (red) on the printer starts
blinking. (The Ready LED remains lit.)
7. Wait for a few minutes.
8. When the update has finished, SDC shows "Controller FW download completed." and
the Ready LED (green) on the printer starts blinking. (The Alert LED is still blinking.)
If "Controller FW download completed" does not appear, the download failed.
Try again. You can also switch from an Ethernet connection to a USB
connection and see if that works. If you still cannot download the firmware, it
may be necessary to change the EGB and/or the controller board.
G165/G166/G167/G181/G183/G184 5-52 SM