3

I'm trying to test drive the Ubuntu touch on my Nexus 7 (2013) which recently has been upgraded to Lollipop (5.0.2). So I followed the steps starting with backing up my device. But the problem is that adb does not list my device!

$ adb devices
List of devices attached 

$ 

Also:

$ adb backup -apk -shared -all
adb: unable to connect for backup

It's in the case that my tablet is successfully recognized as a mass storage and I can copy to/from it easily. I've also made sure that the developer mode is activated on my device, as I tap on Build number it tells me:

No need, you are already a developer.

Yet adb can not find it. How can I find what's wrong with it?

[UPDATE]

I just realized that I've also got a smart phone! It's a Moto G with KitKat 4.4.4 on it. adb does not find that either!

4

On your device switch from 'media device' to 'camera device'. And adb will recognize.

  • Tested on both devices with negative results. – Mehran Jan 23 '15 at 8:06
  • Something to do with USB drivers, do devices appear on device manager? (Control panel) try reinstall drivers. – Rui Ruivo Jan 24 '15 at 9:13
  • Could you please be more specific? It's Ubuntu and there's no Control Panel. How should I reinstall USB drivers? BTW, as I mentioned devices work as mass storage as they should! – Mehran Jan 24 '15 at 10:30
  • Thx - your solution works :-) – KPBird Mar 11 '15 at 9:24
  • For reference : to switch from 'media' to 'camera', on the device one should go to Settings/Storage/Menu/USB – Ghislain Leveque Aug 15 '15 at 9:59

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