Unable to use adb with new Kepler device

Hi all,

I am unable to get the kepler/adb commands to work with my new Kepler device.

I have received a new Kepler device for development and ran though the initial setup by downloading all device updates and was able to log in successfully to my Amazon account.

After the setup, I then proceeded to try to install a vpkg build on the device with the command kepler device install-app --packagePath /{…}.vpkg but then got an error message in my terminal window error [DeviceManagerHandler]: No devices found. I also tried adb devices to verify the status of the connected device and similarly also got an empty list returned with no devices connected.

I followed these instruction to enable Dev mode on the device and after rebooting, I confirmed that Dev mode was in fact enabled correctly. I proceeded to try the kepler device install-app again but saw the same error, I also tried the the adb devices but also the same unfortunately.

At some point I also tried resetting the device to factory default with the same steps above and saw the same results.

I also tried this command adb wait-for-device && adb shell vdcm set com.amazon.devconf/system/security/developer_mode disable expecting the device to be detected at some point when rebooting but after some time I had to abort it as it seemed fruitless.

My setup consists of having the Kepler SDK installed correctly (v0.20.3067) on my machine with the device connected directly to the USB port, supplying power with the original USB cable. Both my workstation and device are connect to the same network. I am confident this setup works for me without any issues as I have, in the past and on the same day, done the same and prepared different Kepler devices for testing/development without any issues.

I am out of ideas and am not sure why this particular device does not work with kepler/adb commands. I am happy to share any details you require from me.

Thanks in advance!

Hi @Richard_Nunes,

I am sorry to hear about the difficulties you encountered with the device.

Could you please try the troubleshooting steps mentioned here?

If issue still persists, to help with further investigation, please provide the information requested below:

  • Share output of the troubleshooting steps done earlier (like output of lsusb command)
  • Share a screenshot/photo of Settings → My Fire TV → Developer options.
  • If possible, try below and share your observations
    • Connect the device to a different workstation (like from another colleague)
    • Use another similar device & USB cable (from another colleague) in your workstation. If they work fine, it could be a device or USB cable hardware issue and you may need to check with your Amazon contact for shipping them back for further analysis.
    • Swap USB cable of a working device
  • Share output of vda devices. We recommend the use of vda CLI detailed here instead of adb.
  • Share output of kepler device list and attach log files found in ~/.kepler/logs folder.
  • Share output of env |grep -i kepler (after masking any sensitive information)
  • Share output of echo $KEPLER_SDK_PATH
  • Try updating to latest release announced here and let us know if issue still persists

Regards,
Siva

Hi @Richard_Nunes ,

Were you able to try the troubleshooting steps provided above?
Please let us know if that helped, else provide us with the requested information for further investigation.

Thanks,
Rohit