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Unbrick Voxl2

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  • tomT tom

    @CJ I haven't seen that I/O error before, perhaps try a different USB port / cable?

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    CJ
    Contributor
    wrote on last edited by
    #5

    @tom I've tried with different usb cables. But the same error message appears.

    1 Reply Last reply
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    • wilkinsafW wilkinsaf

      Did you install QDL from the snap store? if so, this might be your issue

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      CJ
      Contributor
      wrote on last edited by
      #6
      This post is deleted!
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      • wilkinsafW wilkinsaf

        Did you install QDL from the snap store? if so, this might be your issue

        C Offline
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        CJ
        Contributor
        wrote on last edited by
        #7

        @wilkinsaf Yes, I've download from snap store. Thanks for your tips. I'll try to download using git clone.

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        • C CJ

          @wilkinsaf Yes, I've download from snap store. Thanks for your tips. I'll try to download using git clone.

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          CJ
          Contributor
          wrote on last edited by
          #8

          @CJ said in Unbrick Voxl2:

          @wilkinsaf Yes, I've download from snap store. Thanks for your tips. I'll try to download using git clone.

          The git clone version works but still unable to adb to the drone after successfully flashed.

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          • tomT tom

            @CJ I haven't seen that I/O error before, perhaps try a different USB port / cable?

            C Offline
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            CJ
            Contributor
            wrote on last edited by CJ
            #9

            @tom After I've flashed the drone, I'm not able to adb.

            The usb connection shows as fastboot (see image below) instead of

            Bus 001 Device 022: ID 05c6:901d Qualcomm, Inc. KONA-QRD _SN:21217FEB

            Screenshot from 2023-10-30 11-26-26.png

            Screenshot from 2023-10-30 11-42-48.png

            Can you advise how to fix this?

            C tomT 2 Replies Last reply
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            • C CJ

              @tom After I've flashed the drone, I'm not able to adb.

              The usb connection shows as fastboot (see image below) instead of

              Bus 001 Device 022: ID 05c6:901d Qualcomm, Inc. KONA-QRD _SN:21217FEB

              Screenshot from 2023-10-30 11-26-26.png

              Screenshot from 2023-10-30 11-42-48.png

              Can you advise how to fix this?

              C Offline
              C Offline
              CJ
              Contributor
              wrote on last edited by
              #10
              This post is deleted!
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              • C CJ

                @tom After I've flashed the drone, I'm not able to adb.

                The usb connection shows as fastboot (see image below) instead of

                Bus 001 Device 022: ID 05c6:901d Qualcomm, Inc. KONA-QRD _SN:21217FEB

                Screenshot from 2023-10-30 11-26-26.png

                Screenshot from 2023-10-30 11-42-48.png

                Can you advise how to fix this?

                tomT Offline
                tomT Offline
                tom
                admin
                wrote on last edited by
                #11

                @CJ That may be okay, I would try forcing the voxl2 into fastboot using the SW2 button as seen here: https://www.youtube.com/watch?v=IM3PnW7cipQ

                then flashing the latest SDK release

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                • tomT tom

                  @CJ That may be okay, I would try forcing the voxl2 into fastboot using the SW2 button as seen here: https://www.youtube.com/watch?v=IM3PnW7cipQ

                  then flashing the latest SDK release

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                  CJ
                  Contributor
                  wrote on last edited by CJ
                  #12

                  @tom Hi, I've completed the flashing of latest SDK release. But I'm not able to adb shell into the drone.

                  Screenshot from 2023-10-31 09-49-47.png

                  The condition remains the same even after I did a power cycle, adb kill-server and adb start-server. Pls help.

                  tomT 1 Reply Last reply
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                  • C CJ

                    @tom Hi, I've completed the flashing of latest SDK release. But I'm not able to adb shell into the drone.

                    Screenshot from 2023-10-31 09-49-47.png

                    The condition remains the same even after I did a power cycle, adb kill-server and adb start-server. Pls help.

                    tomT Offline
                    tomT Offline
                    tom
                    admin
                    wrote on last edited by
                    #13

                    @CJ What operating system are you running? Are you using a virtual machine? I haven't seen this error before myself

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                    • tomT tom

                      @CJ What operating system are you running? Are you using a virtual machine? I haven't seen this error before myself

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                      CJ
                      Contributor
                      wrote on last edited by
                      #14

                      @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 1 Reply Last reply
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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
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                        • tomT tom

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

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                          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

                          tomT 1 Reply Last reply
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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

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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

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                              CJ
                              Contributor
                              wrote on last edited by
                              #18

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

                              tomT 1 Reply Last reply
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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?

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                                  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

                                  tomT 1 Reply Last reply
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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

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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

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                                      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.

                                      tomT 1 Reply Last reply
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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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