Android phones and tablets stuck in USB "charging" mode can't select MTP mode!

Discussion in 'Mavic Pro Discussions' started by Mr Spock, Nov 26, 2016.

  1. Mr Spock

    Mr Spock Active Member

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    Is there any way to stop android devices charging when using the controller? I tried changing the USB connection settings and tried USB debug mode but every time i manualy select MTP mode it just reverts at "charging" mode. Everything works fine so there is video and data conactivity with the controller but the phone just drains the controller's battery. I get at around 65 to 50% battery just with one 20min flight.
    I tested the following devices:
    Samsung S7 edge, S6 edge+, Tab S2, Huawei media pad. Same problem all of them.
    Is there something i am missing in the android devices or controller settings?
     
  2. Kilrah

    Kilrah Well-Known Member

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    No, all android devices charge as soon as connected, no choice. MTP would charge as well BTW.

    I managed to make my Huawei Mate 8 stop drawing power from USB, but it requires rooting and whether it's possible to disable it and the method to do so are different for every device.
     
  3. Mr Spock

    Mr Spock Active Member

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    How do you do rooting ?

    Sent from my SM-G935F using MavicPilots mobile app
     
  4. Kilrah

    Kilrah Well-Known Member

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    Different for each device. Just google "[your device] root". Note that it may void your device's warranty and/or disable features permanently (particularly on Samsung devices).
     
  5. Mavic

    Mavic Member

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    When rooted install the app " disable USB charging". You will find it in the Google play store (free)

    __
     
    #5 Mavic, Nov 27, 2016
    Last edited by a moderator: Dec 5, 2016 at 2:25 AM
  6. sdharris

    sdharris Well-Known Member

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    Before you root your phone understand the consequences and make sure its worth it for the relatively short amount of time you use your phone for flying compared with normal daily use.
     
    John and Kilrah like this.
  7. Mr Spock

    Mr Spock Active Member

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    So with rooting u can disable charging for the dji go app only when the phone is connected to the rc?
    Is this a bug that DJI has to fix with a controller FW?
    What i will do for now is disable fast charging though thats easy.


    Sent from my SM-G935F using MavicPilots mobile app
     
  8. Kilrah

    Kilrah Well-Known Member

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    Note that this only works with some devices. It doesn't with either of the 2 I use.

    You MAY be able to disable USB charging altogether, with SOME devices. Nothing specific to the GO app.

    No, it's just how Android phones work. DJI can't do much about it.
     
  9. Mr Spock

    Mr Spock Active Member

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    Why they (DJI) don't modify the short USB cable by disabling the red wire? Someone suggested i do that.
     
  10. Kilrah

    Kilrah Well-Known Member

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    Because that likely won't work, most phones use it as "something is connected" indication, if you cut the red wire you may never have any connection.
     
    Mr Spock likes this.
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