![background image](https://i.printerdoc.net/HP LaserJet Pro MFP M521 series/en/HP LaserJet Pro MFP M521 series_en169.png)
Manually upgrade the firmware
1.
From the Home screen on the product control panel, touch the Setup button.
2.
Open the following menus:
●
Service
●
LaserJet Update
●
Check For Updates Now
3.
Touch the
Yes
button to prompt the product to search for firmware upgrades. If the product detects
an upgrade, it will begin the upgrade process.