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HP Customer Support - Knowledge Base

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HP Designjet Z6200 / T7100 Printer Series - FW upgrade Service Advisory

Description

The certificates used to sign FW files uploaded to the public website expire this year. New certificates have been issued to sign the latest releases, which include increased security from 1024 bits to 2048 bits.
The new certificate needs to be installed on the printer before upgrading printer FW in order to avoid a failure error message.

How to install new certificates

Installation of new certificates is done with “bridge versions”. These are regular FW versions that automatically install new certificates on the printer. The bridge versions are:
  • T7100: DRG_02_00_05.1
  • Z6200: KHN_02_00_05.2
Both files are available for download on the public site.

Important

If you are upgrading a printer from a previous version to the bridge one, you need to install this one first. Otherwise upgrade will fail.
Z6600, Z6800, and T7200 FW already come with new certificates, so no bridge version is required.

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