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Unbrick Voxl2

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  • C CJ

    @tom Hi Tom,
    The OS is ubuntu 22.04 and not on virtual machine.
    It seems like it cannot come out of fastboot mode and waiting for adb connection.

    tomT Offline
    tomT Offline
    tom
    admin
    wrote on last edited by
    #15

    @CJ After rebooting, what do you see with lsusb?

    C 1 Reply Last reply
    0
    • tomT tom

      @CJ After rebooting, what do you see with lsusb?

      C Offline
      C Offline
      CJ
      Contributor
      wrote on last edited by CJ
      #16

      @tom Pls see the image below. The Google Inc.... (fastboot) is the drone usb.

      Screenshot from 2023-11-04 09-57-19.png

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      • C CJ

        @tom Pls see the image below. The Google Inc.... (fastboot) is the drone usb.

        Screenshot from 2023-11-04 09-57-19.png

        tomT Offline
        tomT Offline
        tom
        admin
        wrote on last edited by
        #17

        @CJ If another QDL flash doesn't solve it, this might require an RMA for us to investigate: https://www.modalai.com/pages/rma

        C 1 Reply Last reply
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        • tomT tom

          @CJ If another QDL flash doesn't solve it, this might require an RMA for us to investigate: https://www.modalai.com/pages/rma

          C Offline
          C Offline
          CJ
          Contributor
          wrote on last edited by
          #18

          @tom What will be the likely cause for the drone not getting out of fastboot mode?

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          • C CJ

            @tom What will be the likely cause for the drone not getting out of fastboot mode?

            tomT Offline
            tomT Offline
            tom
            admin
            wrote on last edited by
            #19

            @CJ Unkown. Were you ever able to QDL successfully?

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            • tomT tom

              @CJ Unkown. Were you ever able to QDL successfully?

              C Offline
              C Offline
              CJ
              Contributor
              wrote on last edited by CJ
              #20

              @tom Yes, the QDL is successful.

              Screenshot from 2023-11-07 10-41-41.png

              And installing the SDK is also successful but it just wait for adb interface to be up, which the usb is still in fastboot mode after power cycle.
              Screenshot from 2023-11-07 10-48-51.png

              Screenshot from 2023-11-07 10-49-23.png

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              • C CJ

                @tom Yes, the QDL is successful.

                Screenshot from 2023-11-07 10-41-41.png

                And installing the SDK is also successful but it just wait for adb interface to be up, which the usb is still in fastboot mode after power cycle.
                Screenshot from 2023-11-07 10-48-51.png

                Screenshot from 2023-11-07 10-49-23.png

                tomT Offline
                tomT Offline
                tom
                admin
                wrote on last edited by
                #21

                @CJ This is definitely abnormal which makes me think something hardware / power wise is causing the voxl2 to boot directly to fastboot. Your easiest resolution may be to submit an RMA so that you don't risk damaging your board further taking apart the drone

                C 1 Reply Last reply
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                • tomT tom

                  @CJ This is definitely abnormal which makes me think something hardware / power wise is causing the voxl2 to boot directly to fastboot. Your easiest resolution may be to submit an RMA so that you don't risk damaging your board further taking apart the drone

                  C Offline
                  C Offline
                  ck
                  wrote on last edited by
                  #22

                  @tom , may I know what is the likely component that might need to replace to resolve this issues as the RMA cost of sending the drone may outweigh the replacement.

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                  • C ck

                    @tom , may I know what is the likely component that might need to replace to resolve this issues as the RMA cost of sending the drone may outweigh the replacement.

                    tomT Offline
                    tomT Offline
                    tom
                    admin
                    wrote on last edited by
                    #23

                    @ck Can't give you an answer as it would require an inspection from our team

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                    • E Offline
                      E Offline
                      ErezI
                      Contributor
                      wrote on last edited by
                      #24

                      Hi,

                      I had the same problem.

                      You can try to transfer to the normal operation (& ADB)
                      by:
                      fastboot continue

                      and disconnect-connect the USB cable in order to enable
                      the USB change to ADB.

                      Erez

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