NP Retail Support


  • Create a Zebra Account (You MUST create a Zebra Account otherwise it's not possible to download the latest firmware file).
  • Create Zebra Account

Download the latest Zebra Firmware Tool (ZDownlaoder) and install the tool: 

  • Run zDownloader installation file.
  • Click Next.

  • Accept terms. 
  • Click Next.

  • Click Next

  • Installation has started.

  • Installation is successfully completed. 
  • Click Finish

  • Run FirmwareDownloader. 
  • Click Printer → Auto-Detect.

  • You must allow FirmwareDownloader in Windows Firewall, click Permit access

  • Locate the correct printer (GK420T/GX430T).

  • Click File → Select Firmware File...

  • Browse to the firmware file location.
  • Select file → Click Open (now the FirmwareDownloader will work with the file - be patience). 

  • Now the firmware file has been uploaded to ZDownloader and are ready to be downloaded to the printer. 

  • Click Printer → Download To Selected 

  • Download has started.

  • When Download Status is blank the firmware has been downloaded to the printer. 
  • Firmware update is complete.