Pre-Boot walk-up USB thumb drive: (printer control panel Pre-Boot menu)
NOTE: Only to be used if the printer is not able to boot to READY in cases where email or fax job is causing HP logo to hang and printer keep restarting. If you can get printer into ready mode use Device Maintenance menu to update firmware.
After uncompressing the file you will see a xxxxxxx.bdl file.
1. Copy the xxxxxxx.bdl file to a portable USB flash memory storage device (thumb drive).
2. Turn the printer ON.
3. Press the HP logo in the middle of the screen when you see the “1/8” under the logo.
4. Press the Down arrow to highlight Administrator, and then press the OK key.
5. Press the Down arrow to highlight Download, and then press the OK key.
6. Insert the portable USB storage device with the xxxxxxx.bdl file on it.
7. Press the Down arrow to highlight USB Thumbdrive, and then press the OK key.
8. Press the Down arrow to highlight the xxxxxxx.bdl file, and then press the 6 key.
NOTE: Please make sure the firmware file is located in the root directory of the flash drive. If you have more than one .bdl file on your USB flash drive, select the file you want loaded and press OK.
Please be patient since this may take up to 10 minutes to reboot.