Jump to content
Sign in to follow this  

LINDA 3.3.5 - P3Dv5/FSUIPC6 compatible (5 Jun 2022)

Recommended Posts

LINDA 3.3.5 provides compatibility with the new Prepar3D v5 (P3Dv5) 64-bit flight simulator and FSUIPC6 6.1.7 or later. It can also be used with Prepar3D v4.x using FSUIPC6. This update contains ONE fix that not all users will need. See note below.

This release requires a registered version FSUIPC6 6.1.7 or later to work. It is no longer compatible with FSUIPC5 or FSUIPC4 and all existing 32-bit flight simulators (FSX, FSX-SE and P3Dv3.4) - use LINDA 3.1.1 instead  


This release maintains internal changes to support development and distribution. This version provides compatibility with the VRInsight CDU2 and CDU3 panels. Special thanks go to Nicolas Hutter for his inspiration and invaluable contribution for this new CDU development. Otherwise, this version the same functionally as LINDA 3.2.6. The following key changes have been made to the LINDA GUI and core functionality:


  • Fixed issue with configuration file load errors with unexpected symbol (3.3.5). See note below.
  • Fixed issue with Multi Panel Glideslope mode (3.3.4).
  • Fixed issue with Multi Panel Height units in GUI (3.3.4).
  • Fixed FSUIPC version number displayed (3.3.4).
  • Added Extras for creating special aircraft module builds (Developer only) (3.3.4).
  • Added additional error trapping (3.3.4).
  • Added extra error trapping (3.3.3).
  • Added check for Registered copy of FSUIPC (3.3.2).
  • Fixed LINDA sounds (3.3.2).
  • Fixed error loading MCP2 configuration (3.3.1).
  • Added VRInsight CDU2 and CDU3 functionality including presets for most popular Airbus and Boeing aircraft (3.3.0).
  • Added Thrustmaster Warthog HOTAS and TCA joysticks (3.3.0).


IMPORTANT NOTICE This release addresses an issue some users have experienced with an error caused by an unexpected symbol found when loading certain configuration file (config-sys.lua and config-hid.lua). The previous fix referred to Language Support and UTF-8. The release may cause some initial errors when LINDA is loaded. Users should check the fsuipc6.log (in LINDA Console) for errors like:

[E] ** LUA Error: error loading module 'linda-cfg/system/config-sys' from file ... unexpected symbol near 'i'

In such cases should force a save of config-sys.lua by clicking twice on SYNC TO SIM and of config-hid.lua by selecting Joystick page and assigning Do nothing to one empty button and clicking save. This may need to be done for each aircraft used.

After these actions users should not experience any further issues.



The installation differs from previous LINDA versions and care should be used to achieve the correct installation.

First install P3Dv5 to a directory of your choice before installing the latest version of FSUIPC6 (version 6.x or later). It is strongly recommended that FSUIPC6 is installed in a root directory, eg:


You can tick both P3Dv5 and P3Dv4 boxes during the FSUIPC6 installation. There should also be a folder /FSUIPC6 in the Prepar3d v5 add-ons/ folder containing a single add-ons.xml file directed at the installed folder.

Un-zip the folder and copy all files and folders into the above folder created above. Answer Yes to all overwrite requests and tick the apply to all boxes. 

The correct installation should look like:











You can copy your existing fsuipc5.ini and rename it fsuipc6.ini. You can also copy your old /linda/aircrafts and /linda-cfg/aircrafts folders with all LINDA settings to the FSUIPC6 folder created above. Similarily, any .MCRO files should be copied into the same FSUIPC6 folder.


This release to provide improved compatibility with FSUIPC6 and P3Dv5. A number of limitations and issues still exist and the cause(s) is being investigated:

  • Some Access Violation error message may be reported if the installation location and files are incorrect. Report the LINDA version and build number (on About page eg. and the error address (eg. 007F7123).

Please read the enclosed release notes for all details for correct installation and on new features.

All issues and problems should be reported on the LINDA Support sub-forum.


LINDA 3.3.5 Download

Previous version LINDA Download

Release Notes

Previous version:

LINDA Download

Release Notes

Edited by ScotFlieger
LINDA 3.3.5 unexpected symbol fix - SSL
  • Like 13
  • Upvote 1

Andrew Gransden

Scotland, UK

LINDA Support/Developer - VATSIM and BAVirtual - Airbus Flyer

i7 1TB SSD GTX980 - FSX/P3D - Aerosoft Airbus A318/A319/A320/A321 - FS2Crew

Share this post

Link to post
Share on other sites

Some users have experienced issues with an error reporting that an unexpected symbol has been found when loading certain configuration files (config-sys.lua and config-hid.lua). LINDA 3.3.5 addresses this issue. It is not necessary for all users to install this version.

See important information above.

Andrew Gransden

Scotland, UK

LINDA Support/Developer - VATSIM and BAVirtual - Airbus Flyer

i7 1TB SSD GTX980 - FSX/P3D - Aerosoft Airbus A318/A319/A320/A321 - FS2Crew

Share this post

Link to post
Share on other sites
This topic is now closed to further replies.
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online

  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Create New...