Unofficial Lost Vape - Quest Chipset (Grus, Ursa)

Discussion in 'Suggestions' started by mixHup, Oct 14, 2020.

  1. Shikuro

    Shikuro New Member

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    Thank you very much! Tomorrow I'll buy a new cable and try again.
     
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  2. maelstrom2001

    maelstrom2001 Developer
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    @copyman thank you very much!
    Watched your review on Ursa, and... it looks very solid, and most probably it can be flashed as well. Yes, its firmware looks much better than the Grus firmware, and there is no urgent need to change it, but why not. Also interested in Ursa, especially with RBA, so perhaps will be continued :D
     
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  3. maelstrom2001

    maelstrom2001 Developer
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    Hello, great news!
    And if it will run DFU mode, please make a dump with DfuSe Demo, it will be very interesting to see it. Also noticed that Lost Vape place external EEPROM (in Grus it has landing pattern on the PCB, but it is not installed), it will also be a nice bonus.
     
    #123 maelstrom2001, Jan 25, 2021
    Last edited: Jan 26, 2021
  4. maelstrom2001

    maelstrom2001 Developer
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    It seems that in this box it will be easy to put MCU in DFU mode as well.
    Probably, here is the pads that should be shorted:
    [​IMG]
    And just in case and for comparison - here is Grus pinout restored from OEM firmware:
    [​IMG]
     
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  5. copyman

    copyman Member

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    Exactly the same pins I thought to give in short. Thanks for the information, I will do the test tonight.
     
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  6. Shikuro

    Shikuro New Member

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    Thank you all so much for your help. I managed to flash the mod. Please tell me, will the firmware still be updated?
     
    #126 Shikuro, Jan 26, 2021
    Last edited: Jan 26, 2021
  7. copyman

    copyman Member

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    There they are ...
     

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  8. kwonton

    kwonton New Member

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    EFB5E1F0-A6E5-44A3-812B-C839CAEF9359.jpeg So close but seems so far away

    what do I do? When I plug it in I get “usb device not recognized?”
     
  9. copyman

    copyman Member

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    Are you trying to turn the USB-C connector upside down? Looking at the picture, the neighboring pins are also short ...
     
  10. Shikuro

    Shikuro New Member

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    When soldering, you closed the 4 and 5 pins. They cannot be closed. I've been soldering for three days. I threw out three cables. It worked today.
     
    #130 Shikuro, Jan 26, 2021
    Last edited: Jan 26, 2021
  11. maelstrom2001

    maelstrom2001 Developer
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    Perfect, thank you!
    If the device is interesting to the community, I'll order it and will add support.

    Update: ordered :D
     
    #131 maelstrom2001, Jan 26, 2021
    Last edited: Jan 27, 2021
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  12. maelstrom2001

    maelstrom2001 Developer
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    Hello!
    Yep. In first - to resolve issues found by owners. Then perhaps it will grow up to Quest branch, including Ursa :)
     
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  13. maelstrom2001

    maelstrom2001 Developer
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    Found some interesting connectors: https://aliexpress.ru/item/4000034683378.html
    It seems that CC1 and CC2 pins are routed to pull-down resistors, so it will be easily converted to custom cable with removing these resistors and soldering D+ & D- wires to their pads which are not shorted (closer to jack).

    Update: confirmed, works fine, but also had to cut two traces between resistors and capacitor for easy soldering. Now it looks much better with housing.
    [​IMG]
    [​IMG]
     
    #133 maelstrom2001, Jan 28, 2021
    Last edited: Jan 30, 2021
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  14. Star Lord

    Star Lord New Member

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    Thanks guys;)
    My GRUS is now running with ArcticFox.
    It takes a bit of getting used to, but thanks again to the developers:)
     
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  15. I'mNotARobot

    I'mNotARobot New Member

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    Where did you find this board? This looks like something even I could handle!
    I only find those tiny breakout boards and I'm pretty sure I would mess up with those.
     
  16. maelstrom2001

    maelstrom2001 Developer
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    Added battery indicator when the clock on the main screen is off.
     

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  17. Quernetz

    Quernetz New Member

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  18. maelstrom2001

    maelstrom2001 Developer
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    Hello!
    Absolutely :)
     
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  19. LoRaider

    LoRaider New Member

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    Hello, thanks for finding and sharing this.
    i ordered 2 from Ebay, thx for sharing Quernetz ;)

    i hope to have my Grus run on ArcticFox this Weekend.:)
     
    #139 LoRaider, Feb 8, 2021
    Last edited: Feb 8, 2021
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  20. VRilsky

    VRilsky New Member

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    Hello. Will these be the correct connections?
    0306220202.jpg 0306220202_A.jpg