2 H9s with Invalid Serial Number

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    • October 16, 2021 at 12:56 pm #159491
      riuki
      Participant

        Hello,
        i bought two used H9s from a friend.

        One should be a Max and one a Core.

        I can connect tot he an H9s via Bluetooth, but the name for the H9s says ???? and the PIN to connect via Bluetooth is not the last 4 digits from the Serial number but 1234.

        In the end there’s no communication possible because it says invalid serial number( on both devices!)

        I resetted the H9 by pressing the Hotknob and the right footswitch( it says clear) and by pressing the big Black knob and the right footswitch( it says initial).

        I tried to use the direct updater. The device is recognized as -invalid- and the device is not updateable.

        I have no idea what could have caused the Invalid serial number thing.

        I registered one H9 with Eventide with the Serial number on the Back of the device and it says H9 Max on the Website.
        Any help is appreciated

      • October 16, 2021 at 1:08 pm #159492
        joecozzi
        Moderator
        Eventide Staff

          Have you tried updating the H9s using a direct connection to your computer via USB using the H9 Control app?

        • October 16, 2021 at 1:19 pm #159493
          joecozzi
          Moderator
          Eventide Staff

            Are you sure the previous owner deregistered the units?

            It is possible to customize the PIN #’s of the H9s, but you can verify the actual serial # by going into the System Settings > Utilities > Serial No.

          • October 16, 2021 at 1:20 pm #159494
            riuki
            Participant

              Yes, i did that. The USB connection is working( the H9 is recognized under the device Manager as H9 Pedal).

              When i open the H9 control app under Windows 10 i get the error message: Stompbox communication failed. The stompbox you are connecting to has an invalid serial number.

            • October 16, 2021 at 1:24 pm #159495
              riuki
              Participant

                When i go to Bluetooth PIN it says 1234 and for the Bluetooth Name it says ????.

                I’m not sure the previous owner deregistered the devices.

                I registered one device because i thought maybe it’s not working because it’s not registered. After registeation it said H9 Max in my account

              • October 16, 2021 at 1:25 pm #159496
                riuki
                Participant

                  When i go to>Utilities>Serial number it says -Invalid-

                • October 16, 2021 at 1:31 pm #159497
                  joecozzi
                  Moderator
                  Eventide Staff

                    Send me the serial number of the unit in question.

                  • October 16, 2021 at 1:46 pm #159498
                    riuki
                    Participant

                      I have send you an email with the serial numbers

                    • September 19, 2025 at 1:15 pm #192076
                      richiekennedy
                      Participant

                        I am having the exact same problem, could someone please help.

                        • September 19, 2025 at 3:53 pm #192096
                          tbskoglund
                          Keymaster
                          Eventide Staff

                            Sorry to hear this. Please email support@eventideaudio.com with a picture of the serial number on the bottom of the pedal and we can help you further there.

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