Ricoh G165 Service Manual page 203

5. The machine makes a beep sound when starting the firmware update.
6. The image above is displayed on the PC and "Firmware update" and "Updating" are
displayed on the operation panel.
7. Then, you can close this window at your PC.
Do not turn off the machine until "Done Please reboot" is displayed in the
operation panel. Otherwise, the controller board will be damaged.
If "Done Please reboot" 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.
If power failed during the download, try again. If you still cannot download the
firmware, it may be necessary to change the EGB and/or the controller board.
SM 5-55 G165/G166/G167/G181/G183/G184
Firmware Updating