I want to update firmware for laserjet 500 color M551 but forgot the sign in code

[Andreajx]

error code 99.09.67

[davidzuts]

There should not be a sign in code. Follow instructions below:

Method three: USB flash drive - Preboot menu

A firmware update might be necessary to help resolve an issue for a single printer. When the printer is in an error state, the Preboot menu can be used to update the firmware directly from the control panel using a portable USB flash drive.

  NOTE:

Do NOT use these steps to update the firmware for a printer that is in a ready state unless otherwise recommended for the firmware version of the printer. If a "Disk Full" message displays when using this method, contact the HP support center in your country/region to help troubleshoot the issue.

1. Copy the .bdl file (downloaded previously) to a USB flash drive.

     NOTE:

   USB flash drives with a CD formatted partition might not be recognized by the printer. You might need to try a different USB flash drive.

2. On the control panel, open the Preboot menu.
   • Turn the printer Off and then On, and when the HP logo displays on the control panel and all three Ready, Data, and Attention LEDs illuminate solid, press .
     OR
   • Turn the printer Off and then On, and when 1/8 displays below the HP logo on the control panel, touch the logo.
3. Scroll to and select Administrator.

     NOTE:

   To scroll on the control panel, use the touch screen scrollbar or the up/down arrow buttons. If indicated on the touchscreen, you will need to use the 3 (up) and 9 (down) keys on the control panel to scroll.

4. Scroll to and select Download.
5. Insert the USB flash drive with the .bdl file on it into the USB port on the front of the printer (remove the seal if necessary).

     NOTE:

   If the message No USB Thumbdrive Files Found displays on the control panel, make sure the .bdl file is saved to the main directory and is not inside a folder. If the message persists, try using a different USB flash drive.

6. Scroll to and select USB Thumbdrive.
7. Select the .bdl file, select OK or the 6 key, and then wait for the update process to complete.

     NOTE:

   If there is more than one .bdl file on the storage device, make sure to scroll to and select the correct file for the printer and firmware version.

8. When Complete displays on the control panel, select the back arrow until Continue displays, select Continue, and then wait for the printer to automatically reboot.
9. After the printer is back online, print a Configuration Page and verify that the new firmware version is installed.