Phaser 6121MFP Service Manual A-15
Reference
Firmware Update
The Phaser 6121MFP print driver must be installed on the PC that is used for 
the firmware upgrade. Use the SW & Documentation CDROM (Disk1) to install 
the scanner driver in your PC. (The scan driver needs to be installed by the 
Plug and Play New Hardware Found wizard - the CDROM only copies the files 
to the printer.)
1. Download the applicable files from the Xerox support web site.
2. Connect a USB cable between the PC and the printer.
3. Launch the firmware update tool (UpdateFW.exe).
4. In the update tool, select the upgrade AmberAIO4IN1_XC_VNNNF00.bin file, 
and then press Update.
5. Examine the printer control panel and wait for the firmware update process to 
complete. When complete, the control panel displays:
Firmware Update
Firmware Update OK
Machine Power Off/On
6. In the update tool, select the AmberAIO4IN1_XC_VNNNDEMOPAGE.bin file, 
and press Update. Examine the printer control panel and wait for the firmware 
update process to complete. When complete, the control panel displays: 
Firmware Update
Firmware Update OK
Machine Power Off/On
7. Press the following keys in this order:
OK -> Stop/Reset > 0 > 0 > Stop/Reset > 0 > 1
The control panel displays the following:
Service Mode
Service’s Choice
Adjustment
Counter
8. Press the Down key to navigate to Clear Data, and then press OK.
9. Select SRAM Clear, and then press OK.
10. Select Yes, and then press OK.
The control panel displays Accepted SRAM Clear and then returns to the 
menu.
11. Turn the printer off, and then back on.
When the printer reboots, it prompts you for initial setup configuration.