Lost Vape Grus (Quest Chipset)

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

  1. mixHup

    mixHup New Member

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    Is support for the upcoming Lost Vape Grus (Quest chipset) a possibility? Seems like a solid device and there aren't a lot of decent, single 21700 mods on the market at the moment—let alone with AF/RP support. I can send the mod when it's released or funds to support if needed.
     
    #1 mixHup, Oct 14, 2020
    Last edited: Oct 14, 2020
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  2. maelstrom2001

    maelstrom2001 Developer
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    Hello!
    Pre-ordered this mod a few days ago :D
    Also I like it so I pinning my hopes that this baby will be software upgradable and will run RedPanda :)
     
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  3. mixHup

    mixHup New Member

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    Righteous! This is so promising to hear! I've pre-ordered the mod as well. Please feel free to let me know if you need my support in any way. Thanks for all you do maelstrom2001 and NFE Team, truly!
     
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  4. Pandah8

    Pandah8 New Member

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    Glad to hear that! Started vaping again and got myself a Lost Vape Grus a few days ago at my local vape shop! I used to be a huge fan of the Arctic fox and red panda firmwares!

    Would love to beta test! And thanks for your work! Hit me up if you need any help!
     
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  5. maelstrom2001

    maelstrom2001 Developer
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    Well, FastTech, okay, you're not the only one
    [​IMG]
     
  6. KNAPPI

    KNAPPI New Member

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    The Lostvape Grus also uses the STM32.Here is a video of the chip


    Min 11:05
     
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  7. maelstrom2001

    maelstrom2001 Developer
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  8. gat45

    gat45 New Member

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    and me trouver
     
  9. gat45

    gat45 New Member

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    ca fonctionne sur la grus?
    it work?
     
  10. Komara

    Komara New Member

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    First thank you for your hard work and sorry for my bad english! I check wiki for the grus and he has only 32 kb flash isnt small for your magic ? Thanks in advance!
    Edit: now I found it 64kb is ok for AF or RP?
     
    #10 Komara, Nov 14, 2020
    Last edited: Nov 14, 2020
  11. maelstrom2001

    maelstrom2001 Developer
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    Hello!
    64K is not enough. But MCU marked STM32F072C8T in fact may have 128K EEPROM like STM32F072CBT, and this is OK.
    Such -C8T I saw in Vaporesso mods (Swag & Armour Pro) and Hotcig RSQ. Despite marking on its packages they have 128K EEPROM and 112..116K (bootloader may occupy 12..16K) space for the firmware itself, this is enough for AF/RP.
     
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  12. Komara

    Komara New Member

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    I've just receive mine can I help you with something- like connect it to pc or something like that?
     
  13. maelstrom2001

    maelstrom2001 Developer
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    Thank you :) let's continue here, in dedicated thread.
    Yep, please try to connect mod to PC and see how it will be detected, in Device Manager.
    P. S. it may be possible also to find recovery or flash mode, for example, connecting mod without battery and holding some button, etc.
     
    #13 maelstrom2001, Nov 14, 2020
    Last edited: Nov 14, 2020
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  14. Komara

    Komara New Member

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    OK. Just tested without battery not connected. All buttons + combination of buttons not detected. 2 cable tested no luck. Every plug just started the device and show charging without battery ? No movment on device menager...... Windows 7 and Windows 10 tested. Interesting is that says no passtrhou when I push the fire button. It will need disasembly :( to flash that MOD. Any thing else that I can try ?
     
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  15. maelstrom2001

    maelstrom2001 Developer
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    Thank you!
    This is not the most difficult. BOOT pin is accessible and easy to use to put MCU in DFU Mode. But the biggest nuisance might be that dedicated USB pins are not connected to USB port. This is really critical. I see one track to USB D- pin, USB D+ might be placed under MCU, but...In the worst case, they may not be used for USB at all, and then it will actually be very difficult.

    [​IMG]
     
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  16. Gedeon

    Gedeon Member

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    Hope this won't be a Lost Cause.
    I'm also very interested in this device, and not afraid to solder it all around if needed :cool:
     
    #16 Gedeon, Nov 15, 2020
    Last edited: Nov 15, 2020
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  17. copyman

    copyman New Member

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    Hello, I am the author of the video for the disassembly of GRUS, also known as Smoking Maniac. I can confirm that the pins from the MCU go to the USB connector. I marked them in the photos. I don't know if that will help, but I hope so. with a multimeter I measure about 33 ohms between the MCU and the USB-C connector ...
     

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  18. copyman

    copyman New Member

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    Unfortunately, everything from my reviews is handed out at a giveaway and this device will go to the colleague who won it tomorrow. If you seriously think that there is a chance to change the firmware, I can provide such a GRUS immediately for the needs of society.
     
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  19. maelstrom2001

    maelstrom2001 Developer
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    @copyman Hello! [​IMG] Thank you for very useful reviews, really appreciate as electronics engineer and coder.
    USB data series resistors exactly are 33 Ohms usually. Perfect, thank you! To be honest, I wanted to ask you about this in the comments to your review.
    So, if the stock STM DFU is not locked via MCU configuration, we have a very good chance to flash Grus without soldering and ST-Link.
    Yep, the intentions to run AF/RP port (similar to Armour Pro and R80) on the Grus are the most serious. Thank you for the offer, hope my 2 boxes will arrive in a couple of weeks.
    Again, thank you for visiting us, for your hard work and valuable info [​IMG]
     
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  20. copyman

    copyman New Member

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    Great news, I'm glad I helped as much as I could. I am writing here for the first time, but I have been reading your forum for a long time. My congratulations for the amazing work you are doing, thank you very much for your hard work. Thanks again!
     
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