sorry, i dont have the link for that firmware :(
copy pasted from the release notes :
Phaser 6121MFP Firmware Release Notes and Installation Instructions 6121MFP Controller Firmware version V103 (4-in-1 models only - 6121MFP/N or /D) Issues resolved: - Network packet buffer overrun occurs after the printer receives 102 RARP (Reverse ARP) packets, causing the printer to drop off the network or fail to wake up from Energy Saver mode - Serial number reported in CWIS and MIB was updated to display the Xerox serial number, instead of the engine serial number - LDAP menu on front panel did not allow the discovered email address to be added in the TO: field - Fax number containing the key sequence 26273 at any location in the number (beginning, middle, or end) was not accepted Read before beginning the firmware update: * Do not interrupt system once download is in process. Interruptions or loss of power may corrupt the engine firmware and render the system temporarily unusable. (Service repair may be required to return the system to a working condition.) * Some of the device’s settings may be changed from their present value back to the factory default values by the firmware update. It is recommended customers save the configuration page and use it as a reference to restore the device’s settings after the firmware update is complete. To print the configuration page: 1. On the printer control panel, press the Back/Menu button to enter the System Menu. 2. Press the Down Arrow button to go to Print Config Page and then press the OK button. Note: The firmware versions currently installed are displayed on the left column under the “General Information” heading. Updating the FW over a USB connection on a PC *NOTE: The FW update utility for the 6121MFP is a Windows based PC application that communicates over a USB connection. The TWAIN scanner drivers must be installed and configured over USB for the FW update utility to communicate with the device correctly. **NOTE: If the device is connected using a Network port, you will need to change the connection to a USB port, and install the drivers for a USB connection. For information on installing the 6121MFP over USB refer to the User Guide section titled “Installing the Drivers for Windows – USB” on Page 40. 1. From the computer, launch the UpdateFW.exe utility. 2. Click on the [Browse] button, then browse to and select “AmberAIO4IN1_XC_V103F00_p1.bin” file. 3. Click on the [Update] button to send the file to the printer.
