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WinWing EFIS (L) not showing QNH Numbers in A340 (MSFS2024)

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Is anyone else having this issue .... In MSFS 2024 Inibuilds A340, my left WinWing EFIS does not show the numbers, it just displays 88:88 When you turn the dial the numbers change on the AC, every other button dial works fine. And YES i have check brightness, and it is FULLY UP.

On the Fenix A319, A320, A321 it works fine displaying numbers, so i know it is not the numbers that are broken.

MSFS 2024- SU4 Latest Beta build as of 7th Nov

IniBuilds A3240 Update- 1.03

Simapp pro ver- 1.16.70

Anyone advise any tidbits of info, like fix, known issue or workaround. ?

Kind Thanks

Howdy. I’m using the WW EFIS, FCU, AND MCDU with the same builds that you quote and mine is working fine, all displays including QNH.  Like you I do turn the aircraft displays to full for max visibility but even if I don’t I can still see a valid QNH,  not 88:88.  Have you by chance checked the firmware of your EFIS to see if it’s current?  That might be a place to check.  Good luck,

-B

  • Author

Thanks for the reply, will check but pre sure the FW is latest. Strange that it works fine for Fenix tho?

 

2 hours ago, Wasp0 said:

Strange that it works fine for Fenix tho?

Agreed. Frisch probably a long shot.

-B

  • 4 weeks later...

Yep - Same issue. On SU4 Beta and using WimAppPro 1.16.74. The sim shows the QNH numbers correctly, but the WinWing EFIS displays all 8888's unless its in STD. If the sim is set to STD then the WW EFIS Shows STD. The LED's are fine....clearly some kind of glitch between the iniBuilds A340 and SimAppPro I'd say.

Kael Oswald

9950X3D/ 64GB DDR5 6200 @ CL30 / Custom Water Loop / RTX 5090 / 3 x 48" LG C4 OLEDs

  • 2 weeks later...

Is this issue now solved for you guys ?

Edited by RTK1972

Carsten U

  • Author
On 12/17/2025 at 7:38 AM, RTK1972 said:

Is this issue now solved for you guys ?

NO, and Winwing Support have basically 'GIVEN UP' by saying and i quote "our Tech Team are unable to replicate the error you are seeing". Meaning they don't have a scoobie!!

20 hours ago, Wasp0 said:

NO, and Winwing Support have basically 'GIVEN UP' by saying and i quote "our Tech Team are unable to replicate the error you are seeing". Meaning they don't have a scoobie!!

Interessting……

Carsten U

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