Software Downloads

Here you'll find software for the LI-6400/XT, including embedded software for the instrument and interface software.

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Thinking about upgrading your LI-6400 software?

Make sure you get the right version!

The LI-6400/LI-6400XT embedded instrument software is occasionally updated to add features and fix minor bugs. We encourage you to update your instrument software to the latest compatible version.

When upgrading your software, please make sure that you are downloading the correct version. Updating the software to a version that is incompatible with the hardware in your LI-6400/LI-6400XT can cause problems that may make your instrument unusable and require LI-COR technical support assistance to correct.

To determine the latest software version compatible with your hardware, you will need to turn your LI-6400/LI-6400XT on and view the main OPEN screen. The graphic below shows how to identify your version of OPEN software.

If your instrument has OPEN version 6.x software, you can upgrade to version 6.3.x software. We recommend backing up your data files before beginning the upgrade.

If your instrument has OPEN version 5.x software, you can also upgrade your software to version 6.3.x. If you choose to do this, however, you must save all of your data and calibration files before upgrading. The upgrade will erase all files from your instrument’s memory.

If you do not wish to upgrade to version 6.3.x, the latest version 5.x software is 5.3.2.

If your instrument has OPEN version 4.x software, you will not be able to upgrade to version 6.3.x. The latest version 4.x software available is 4.06.

If your instrument has OPEN version 3.x software, you will not be able to upgrade to version 6.3.x. The latest version 3.x software available is 3.4.3.

Embedded

LI-6400XT instrument (embedded) software v6.3.4

(Update6400-6.3.4.exe)

**CURRENT VERSION** Instrument (Embedded) software for the LI-6400XT Portable Photosynthesis System, version 6.3.4. Compatibility: OPEN 6.3.3 can only be installed on instruments with the 400 MHz (XT) or 200 MHz boards. What's new in this version?

LI-6400XT instrument (embedded) software v5.3.2

(Update6400-5.3.2.exe)

Previous version software installer. Compatibility: Download this software to update instruments already running version 5.x software.

LI-6400 instrument (embedded) software v4.06

(Update6400-4.06.exe)

Previous version software installer for the LI-6400. Compatibility: Download this software to update instruments already running version 4.x software.

Interface

LI-6400XT Windows File Exchange/Simulator Software Version 6

(Win_LI-6400Apps-2015.1.exe)

** CURRENT VERSION**, for instruments with Version 5.0 or later software. Windows Simulator and Control Software. Contains 3 applications: LI6400XTerm, LI6400Sim (simulate any version of 6400 software), and LI6400Group (control multiple LI-6400XTs).

LI-6400XT Mac File Exchange/Simulator Software [64 bit], Version 6

(Mac64_LI-6400Apps-2015.1.dmg)

**CURRENT VERSION**, for users operating instruments with V5.0 or later software. Mac Simulator and Control Software. The installer contains 3 applications: LI6400XTerm, LI6400Sim, and LI-6400Group. [64-bit for OSX 10.7, 10.8, or 10.9].

More Software

FlashAnalysis for Windows

(FlashAnalysis.-v1.0.exe)

FlashAnalysis application for viewing and evaluating flash data from the LI-600, LI-6800, and LI-6400XT.

FlashAnalysis for macOS

(FlashAnalysis.-v1.0.dmg)

FlashAnalysis application for viewing and evaluating flash data from the LI-600, LI-6800, and LI-6400XT.

6400-89 Insect Respiration Chamber configuration file installer

Configuration file for the 6400-89 Insect Respiration Chamber. The 6400-89 is for users interested in measuring the respiration rate of insects, small mammals, small fruits, nuts, etc.

LI-6400XT Linux File Exchange/Simulator Software v6

** CURRENT VERSION**, for instruments with Version 5.0 or later software. Linux Simulator and Control Software. Contains 3 applications: LI6400XTerm, LI6400Sim (simulate any version of 6400 software), and LI6400Group (control multiple LI-6400XTs).

LI-6400XT v5.3.2 software patch

A patch program for Version 5.3 that fixes two known bugs. Requires that Version 5.3 be installed.

LI-6400XT Windows File Exchange/Simulator Software v5.3.2

Previous version, allows transfer of files for instruments with Version 3 or 4 software. Installer contains 3 applications: LI6400Term (remote control, V5 instruments only), LI6400FileEx (file exchange, V3, 4, 5), and LI6400Sim (simulate V5 software).

LI-6400XT Mac File Exchange/Simulator Software v6

**CURRENT VERSION**, for instruments with Version 5.0 or later software. Contains 3 applications: LI6400XTerm (remote control & file exchange), LI6400Sim (simulate any version of 6400 software), and LI6400Group (control multiple LI-6400XTs). [32 bit, OS10.4]

LI-6400 instrument (embedded) software v3.4.3

(Update6400-3.4.3.exe)

Previous version software installer for the LI-6400. Compatibility: Download this software to update instruments already running version 3.x software.