MCR-4V Firmware Update Tool

This is an update program for the MCR-4V firmware.


This is an update program for the MCR-4V firmware.

Compatible ProductsMCR-4V
VersionVer. 1.06 (September 21, 2017)
File Nameapp_mcr4v-update-106-eng.exe
File Size6.88 MB
Operating EnvironmentCompatible OS *1
Microsoft Windows 11 64bit English
Microsoft Windows 10 32/64bit English
CopyrightT&D Corporation
ReplicationCopying to another media is expressly forbidden
*1: For installation, it is necessary to have Administrator (Computer Administrator) rights.

How to Check your MCR-4V Firmware Version

When turning on your MCR-4V, the first screen that appears will display [Version x.x]. Check the displayed version number.

Firmware Update Procedure

  1. Using a USB cable, connect the MCR-4V to the PC in which “MCR-4V Firmware Update Tool” will be executed.
  2. Execute the downloaded “MCR-4V Firmware Update Tool”.
  3. Please follow the instructions on the screen to update the Firmware.

Revision History

Ver. 1.06 September 21, 2017

  • When the warning monitoring function is enabled and user defined upper/lower limits are exceeded, the warning sign now remains ON even after measurements return to normal.

    * The warning sign turns off when a new recording starts.
  • Made the update tool compatible with the Windows 10 USB driver for MCR-4V.(October 27, 2021)

Ver. 1.05 June 13, 2014

  • Improved the reliability of recorded data by adding an error detection feature.
  • Improved the communication protocol for communication between PC and a Slave unit via USB.
  • After starting or stopping recording with the [REC/STOP] button, you will now jump to the [Data List] menu.
  • Fixed a problem that occurred when exporting data to the SD memory card during endless recording, where an SD card write error would disable touch panel.

User Agreement


  1. Although T&D Corporation has carried out operational tests on MCR-4V Firmware Update Tool, hereafter referred to as "the software", we cannot guarantee that all operations will work properly under all conditions.
  2. T&D Corporation shall not accept any responsibility for any damage whether direct or indirect that results from the usage of the software.
  3. Specifications of the software may be subject to change and service may be terminated without advance notice to the user. In such a case T&D Corporation shall not be responsible for any damages whether direct or indirect from the inability to use the software.
  4. T&D Corporation has no obligation to correct any defects found in the software.


  1. All copyrights for the software, including all of the programs and all related documents, are the sole property of T&D Corporation.
  2. The software is for use free of charge. Redistribution is permitted as long as it is to others for non-profit. In this case, all terms and conditions as written in the above disclaimers automatically transfer and hold true and valid for the party to which the program was redistributed. Please note that if you wish to commercially redistribute the program please contact your local distributor or T&D representative.
  3. The reprinting or redistribution for commercial purposes whether in part or in whole, in magazines or as a part of any product is strictly forbidden without the expressed consent of T&D Corporation. Any inquiries concerning commercial redistribution should be directed to the Sales Department of T&D Corporation.
  4. Please do not attempt to make any changes or modifications to the software.
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