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Configure Google Nexus 7 to work with Android SDK Tools / ADB.exe [Nexus 7 Device is offline fixed]


I wanted to deploy my first “hello world” Android application from Eclipse on Windows 8 to my Google Nexus 7 tablet. I plugged the Nexus 7 into my development PC using the USB cable and then I used adb.exe to list the devices, but no devices were found.
The summary of steps I took to get the device to show with ADB:
  1. Enabled the USB debugging setting on the tablet (If this option is not appearing then click here) 
  2. Changed the USB connection mode to Camera (PTP)
  3. Updated the Google USB Driver in Windows
Initially Adb.exe shows no devices:
01-adb-shows-no-devices
If the Android emulator is running, it shows as the only device:
02-adb-shows-only-emulator
The first step is to enable the Developer options the Nexus 7. Go to Settings –> About tablet. Then tap the “Build number” 7 times!
02-tap-build-number-7-times
Now you will see the “Developer options” setting. Go into Developer options and enable the “USB debugging” setting:
02-enable-usb-debugging
When you get the “USB debugging connected” notification, tap the “Connected as a media device” option.
02-usb-connected
The default USB mode is “Media device (MTP)”, change this to “Camera (PTP)”:
02-select-camera-ptp-mode
Install the Google USB Driver using Eclipse / ADT: Window –> Android SDK Manager. In the Android SDK Manager, select Extras –> Google USB Driver. This installs the driver to your android SDK folder under sdk\extras\google\usb_driver.
Now update the device driver using Device Manager in Windows 8:
03-open-device-manager-win8
Find the “Nexus 7” device in the Device Manager under “Other devices”, then right click and select “Update Driver Software…”:
04-device-manager
Provide the path to the Google USB Driver:
05-select-driver
Select “Always trust software from Google Inc” and install the driver:
06-install-driver
Now the “Android Composite ADB Interface” will show in the Device Manager:
07-android-device-in-device-manager
Run ADB.exe again and confirm the new device is available. It may show as offline:
08-adb-shows-new-device
If the device shows as “offline”, then make sure to confirm on the tablet that you allow USB debugging:
08-allow-usb-debugging
Now the device is online:
09-nexus-online
That’s it!
I’m using Windows 8 64bit, Android Developer Tools (ADT) v21.1.0-569685 and the Nexus 7 is running Android 4.2.2. I used the information on this StackOverflow post to figure everything out.
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