Asus Nexus 7 not recognized by Android dev tools via adb

Question

Problem: Asus Nexus 7 not recognized by adb when correctly installed and connected

Setup: Asus Nexus 7 tablet Windows 7 64 bit OS

Steps taken:

1. Ins

Answer 1

Had the same issue, Windows 7 32-bit; visited the site that Graham linked in his answer but wasn't happy running PTP (though it did work). Following the steps on another post belonging to the same thread sorted it (I can now connect as MTP); again, a direct quote from https://groups.google.com/forum/?fromgroups=#!topic/android-developers/0-RzE0v-G3k (thanks sfoucher!):

1. uninstall the driver in the device manager with option "delete the driver software for this device"
2. reconnect the Nexus tablet
3. let windows install a default driver which will be inadequate
4. uninstall again the device in the device manager with the option "delete the driver software for this device"
5. let windows try to find the driver, this process will fail
6. go back to the device manager and right click the failed device and update driver
7. choose the driver location in the android sdk directory (android/extra/google/usb_driver)

I should add that after step 5 I had Nexus 7 listed under Portable devices looking OK but had another Nexus 7 entry under Other Devices to which I applied the driver. My Nexus 7 now appears OK in ADB and Eclipse. In device manager I have Nexus 7 under Portable Devices and Android Composite ADB Interface under Android Device.

Answer 2

I too had the same issue on windows 7 64 bit.

Following thing solved my problem.

1. Connect the Nexus 7 and tap on Settings-About Tablet-Build version 7 times.!
2. This will install basic driver for windows
3. Now, tap on connected as media device(MTP) icon, but you will need to change it as Camera device then
4. Go to device manager on windows, select Nexus 7 and then update the drivers using the driver avaliable on this link http://developer.android.com/sdk/win-usb.html - This will install a driver ( You can use it with this one)
5. Now tap on Connected as Camera device and change it to media device - This will install one more driver and you are ready to go.!

Answer 3

An important note about Nexus 7: There is no option for USB debugging readily available in the device Settings for 4.2.

http://forum.xda-developers.com/showthread.php?t=1989777

"Open Settings, then go to phone details (where u can see kernel, Android-version etc) then just tap your Build number 'JOP40C' 7 times!"

This sounds ludicrous, but after I did this, the developer options unlocked and I was able to see my nexus 7 in Eclipse (mac, Mountain Lion) for debugging.

Answer 4

Download the latest android usb drivers from

http://developer.android.com/sdk/win-usb.html#top

And then manually install these driver using Device Manager. Hope it helps!

Answer 5

I had the same problem. For me the newer version of adb is required to connect to the Nexus 7 i.e. to have the Nexus 7 ask me to "Allow USB debugging?"

In short:

Android Debug Bridge version 1.0.31 - Works

Android Debug Bridge version 1.0.29 - Does not work