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DXLink 4K60 TX Hotfix

Written by Will Fraser

Updated at February 19th, 2026

Table of Contents

Brands: Models: Downloads: Note: Information: Programming Instructions: Optional: Revision History:

Brands:

  • AMX

Models:

Product Name:

  • DX-TX-4K60

SKU / FG #:

  • FG1010-312-xx

Downloads:

Version: v1.8.5.99
Release Date: 10/22/2024

SW1010-312-0X_DX-TX-4K60_v1_8_5_99.zip

Note: 

This zip only includes firmware for the copper TX only.  If hotfix firmware for the fiber TX is needed, there is a separate help.harmanpro.com article available. dxlink-fiber-4k60-rx-and-tx-hotfix

There is currently no 4K60 RX Hotfix later than the released v1.8.5. 

 

Information:

Changes in this release:

  • Changed +5V video signal to improve video detection with certain devices that require a faster HPD (Hot Plug Detect) and exchange of EDID info.  This could be used in the case of a rebooting or waking source that is not able to establish a good connection to the TX resulting in that source not sending video. 

Programming Instructions:

  • Load this v1.8.5.99 full kit to the copper TX
  • When the firmware update is complete and the TX is back online, confirm the app version in the Online Tree is v1.8.5.99
​​​​?FWVERSION  >>  ​FWVERSION-ARM_V1.8.5.99 MCU_V9.7.1 EP_V6.1 VALENS_V7.4.44 SI9396_V1.3.02

Optional:

If you need to factory reset the TX/RX to get it back to a known/default starting point, there are a few options:

  • TELNET:  “reset factory”
  • NETLINX COMMAND:  “FACTORYRESET”
  • ID BUTTON:  Press and hold the ID Button, apply power/POE to the TX/RX and continue to hold the ID Button.  The front LEDS will flash a sequence about once per second.  When they start flashing faster (approximately twice per second) let go of the ID Button and it will perform a factory reset.  Holding it longer will cause it to revert to the initial factory firmware version.

Revision History:

  •  

Related Videos

upgrade patch

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Table of Contents

Brands: Models: Downloads: Note: Information: Programming Instructions: Optional: Revision History:

Related Articles

  • DXLink 4K60 Factory Firmware Reset
  • DXLINK 4K60 ICSLAN port
  • DX-RX-4K60 Test Patterns
  • DX-TX HDCP
  • DX-TX-4K60 Does Not Pass Ethernet to HDBT Displays

Related Articles

  • DXLink 4K60 Factory Firmware Reset
  • DXLINK 4K60 ICSLAN port
  • DX-RX-4K60 Test Patterns
  • DX-TX HDCP
  • DX-TX-4K60 Does Not Pass Ethernet to HDBT Displays
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