Radio Control mx-20 HoTT 12 channels - Version 2v021

mx-20 HoTT | #33124
mx-20_eng  Version:

Version 2v021 from 11th January 2018

Download Voice-Files

Voice3 from 16th November 2017

Download Voice-Files  Multikopter Voice3_Multicopter_DE
Other downloads:  - Handbuch, Manual, Manuel
- Firmware-Upgrade

Version 2v021 from 11th January 2018

- Binding problem (only Amercican RF code) fixed

Version 2v018 from 16th November 2017

- Announcements for flight phases (Voice outputs for phases, not with mx-12 / 16)
- Announce-menu (Voice output by switch, phases should be announced in the phase menu, not above announce.)
- RX date (Slower telemetry for crawl operation or camera copter especially for the secondary receiver.
- Alarm setup: User/Vario/OFF // Benutzer/Vario/Aus
- Altitude Warning ON/OFF // Höhenwarnungen EIN/AUS

For instructions on the new functions, please refer to the mc-28 manual part 2


Update should be performed with the Firmware-Upgrader


After the update, the Voice3 language file must be updated in order for voice output and warnings to work.

Perform a complete function and range test so as a flight simulation on the ground before the first flight of each model!
It is recommended, the binding of the receiver to delete firstly and then bind the receiver
to the model memory.
Model memories will be saved.

Tags: mx-20
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  • Version francaise 2v017

    S'il vous plait, pouvez vous me dire quand la version française de la notice de cette version 2v017 sera disponible. Merci.

    Please,can you tell me when the French version of the manual for this 2v017 version will be available. Thank you.

  • Répondre "Version francaise 2v017"

    Bonjour Sebastien,

    une documentation en français prendra un certain temps à compléter. Nous ferons de notre mieux pour vous le fournir dans les plus brefs délais.#


  • Version 2v018

    Il y a un petit problème avec l'affichage à l'écran des potentiomètres CTRL7 CTRL8.

  • Answer "Version 2v018"

    Hello Sebastien,

    thank you for your comment.
    Could you please let us know more details of the problem.
    Does the display jump or is it frozen in?
    Please get in touch with our service department. As well you can get in touch with our Service department in France.
    Graupner Service France
    Gérard Altmayer
    86, rue St. Antoine
    F 57601 Forbach-Oeting

    Tel. (+33) 38 78 56 21 2
    Fax (+33) 38 78 50 00 8


    Kind regards


  • Update by GrStudio

    Dear Graupner Support,
    Thanks a lot about this nice update, but does the update of MX20 must be performed by GrStudio only ? Is it possible in boot-mode directly from SdCard ?
    Since few months, I don't use any more Windows OS... i only use MacOS laptop :-/

  • Answer "Update by GrStudio"

    Hello Yann,

    you can do your update in the SECRET MODE with the SD Card. Please check out our latest manual.

    Kind regards


  • update through SECRET MODE with SD card

    Thanks a lot Graupner Support team,

    Can you confirm that this update V2.021 can be done in SECRET MODE with SD card from V1.173 bootloader ?

    King Regards

  • Answer "update through SECRET MODE with SD card"

    Hello Yann,

    yes, we confirm.

    Kind regards


  • DO not buy the transmitter

    Very bad opinon. where do we receives the manual in french.

  • Answer "Do not buy the transmitter"

    Hello Le Solliec,

    we do not understand you bad comment and we want help you.
    Please let us know what is bad on the mx-20 and feel free to visit our product mx-20 with all manuals, also in France ;)

    Kind regards