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alireza avatar image
alireza asked Richelle Herrli commented

Unable to debug over usb on Clover flex 3 on Macos

I'm unable to connect to Clover Flex 3 Development Kit over USB.

I have read and followed all the steps in Clover Dev Kit Page. I'm using the following:

1. Clover Flex 3 Development Kit
2. MacOS Ventura 13.2.1
3. Android Studio Electric Eel | 2022.1.1 Patch 1
4. StarTech Micro USB a to b which is a recommended one
5. Android Debug Bridge version 1.0.41
6. Platform-tools version 33.0.3-8952118



I have also enabled developer options on my Clover device as well as enabled USB debugging. I have also restarted my Macbook and the Development Kit device multiple times. I also have added the vendor id to the "adb_usb.ini" file.

Could anyone help me out with this situation?

Clover FlexDevKit
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3 Answers

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tanaybh avatar image
tanaybh answered

Can you make sure that when you are connecting the cable to the Clover device, the screw is pointing downwards?

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louise786 avatar image
louise786 answered

Double-check if the cable is functioning properly by using another cable or testing it with another device.

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John Turnipseed avatar image
John Turnipseed answered martin44 Suspended edited

I have just been fighting this same issue (Mac OS 12, Monterey) and a Flex 3 Dev Kit today and found a solution described below.

Let me preface this by saying that I tried all of the below in multiple combinations multiple times:

  • Ensured Developer mode was enabled on the Flex 3
  • Toggling both USB Debugging and Developer mode itself off/on
  • Revoking authorizations
  • Rebooting both Flex and my Mac
  • Various USB A/B cables, including one that was working successfully with a Flex 2 Dev Kit.

I eventually started the "Troubleshoot Device Connections" tool window in Android Studio. This provided a list of all USB devices connected to the Mac (Android or not).

I know this sounds insane, but I could only get the Flex 3 device to show up once I flipped the USB C connector so the screws on it were heads down. USB C connections are supposed to be orientation agnostic, but it isn't in with this cable/device. I don't know if the screw orientations are even consistent from device to device, so your mileage may vary. Try it each way until you find an orientation that works.

NOTE: This is not the end of the story...

The next problem was that Android Studio showed the device pending authorization, but the Flex device was not showing a dialog to grant authorization. Neither rebooting, nor disconnecting/reconnecting USB would trigger the dialog to show.

On the Flex device I swiped down the top system bar and found a "USB Debugging" notification. It may have a gear icon next to it, or if you press and hold it, you may find it se to "Silent"... Switch it to "Alerting".

Once I did that, and I disconnected/reconnected the USB C cable, the standard ADB authorization dialog appeared.

I hope this helps others who find themselves stuck in this situation.

-=- John

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Richelle Herrli avatar image Richelle Herrli ♦♦ commented ·

I can confirm that you do need to pay attention to the orientation of the cable when connecting a Flex 3 to a computer for debugging. You can find this information in our video on setting up the Flex 3 for development. https://youtu.be/R94x07LeXt0

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