If you are a Mac user and have recently updated to Big Sur (or contemplating it), you have found that most newer RealSimGear hardware will not work with Big Sur. This article outlines a work around to allow customers with newer RealSimGear hardware to use it on MacOS Big Sur.

** Disclaimer, this requires that you have access to a Windows machine in order to load our custom USB Windows drivers on, as well as use the MFG programming tool to change the USB parameters.

** More Important Disclaimer, please follow the instructions carefully. If you mistakenly change any of the values in the programmer to something other than RSG values or default values, it can make your device unreachable for any further usage.

  1. On your Windows PC, download and install our custom USB drivers (this will allow your devices to be seen by Windows).

  2. For each RealSimGear device you have that is not currently recognized by Big Sur, connect each one to your Windows PC, one at a time and perform the following steps on each. Double check Windows Device Manager > COM section to make sure the device is seen by Windows (and note the COM port being used).

  3. Download MFG CH340 Utility and unzip it (save it somewhere easy to find), this will result in a file called "CH340CFG.exe".

  4. With the device connected to the PC via USB, go ahead and double click on the "CH340CFG.exe" file. Windows may complain about this being unsafe or untrusted, but go ahead and accept it (we use it quite often). This file is the programming utility used to set the VID/PID information and being it comes from China, has a lot of Chinese verbiage on it.

  5. From that interface, set the CH340 port to the COM port noted in step 2 for the device being modified (1), then choose Read Config (2). This should result in the Vendor ID being set to 32B6 and the Product ID set to something between 0001 and 0017 (HEX). This step is just really to ensure the device can be read.
    NOTE: If the device already has VID = 1A86 and PID = 7523 OR if the VID/PID is anything different than VID = 32B6 and PID = 0001-0017, STOP and do not proceed. This tool should only be used if the RSG values have been set already.

  6. If the RSG values are shown, choose the "Restore Default Setting" (3) which will populate the default Vendor and Product ID's as shown below (VID = 1A86 and PID = 7523).

  7. Choose the "Write Config" (4) which will save the default VID/PID to the device

After doing this, make sure you have our RealSimGear X-Plane plugin installed on your Big Sur Mac (download from link and unzip the contents to "X-Plane 11\Resources\plugins\"). Unfortunately there is no easy way to determine if the hardware is now detected other than to start X-Plane and see if it detects the device in the Plugins > RealSimGear > Connected Hardware (which it now should). You can also look in "About This Mac" > "System Report" > USB and see if you see the usb2.0 serial device as shown.

While this is indeed a bit of a hack, it "should" allow you to start making use of the newer RealSimGear hardware in X-Plane 11 on your Big Sur Mac .. until such time we actually get a MFG driver kit.

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