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On Nvidia ShieldTV Android Tools fastboot NOT recognizing a device, but ADB does?

Trying to execute Fastboot commands from windows PC to a Nvidia Shield TV via USB. I am having issues on windows 10 getting fastboot to recognize shield TV. Wondering if anyone has advice on troubleshooting this.

ADB has no issues

  • shows the device when I run "adb devices"
  • I can "adb reboot bootloader" and/or "adb reboot fastboot" with out any issues
  • I did UNLOCK the boot loader from the appropriate screen

after the adb reboot when I enter the screen where I believe I should be running fastboot ( from the menu that displays "boot recovery kernal", "unlock bootloader", etc.. ) The command "fastboot devices" returns empty and running the commands to install the new image just returns fastboot "< waiting for any device >"

Am I missing a step? Why would adb work and fastboot not?

Some other notes

  • Shield TV did prompt me to accept my windows PC for USB and Network connectivity.
  • I attempted the same thing with a Linux machine but in that case the ShieldTV never prompted me to allow my Linux device to connect so adb is stuck with an unauthorized for the device.
Daniel A. White
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  • Do you install the USB driver? https://developer.nvidia.com/gameworksdownload#?search=SHIELD%20Family%20Windows%20USB – Mobin Yardim Jan 24 '22 at 07:58
  • Does this answer your question? [Having issues Installing TWRP Recovery On Huawei Mediapad T3 10 from Windows](https://superuser.com/questions/1669444/having-issues-installing-twrp-recovery-on-huawei-mediapad-t3-10-from-windows) – alecxs Mar 24 '22 at 15:09

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