Android device chooser - My device seems offline

Question

I have developed an application and i was planning to deploy it to my HTC Desire. I have installed USB driver. I turned on USB debugging on the phone and choosed charge only when phone plugged-in. When I run application Android device chooser show my device offline. I am stuck at this point. Any help would be appreciated.

I develop at Eclipse Helios on Windows 7 (64bit)

Answer 1

Updated the Android SDK platform tools using SDK Manager (in Eclipse). Works for me.

Answer 2

I was trying to use a Nexus 10 to debug through eclipse. I've been struggling to get eclipse to recognize it. Finally I tried 'adb kill server' / 'adb start server' command, which at least got Eclipse to show the device, although still only offline.

Then I tried switching USB connection to one in the back of the PC, and it worked!

Note: after I switched to rear USB port, I was prompted on the Nexus to allow debugging from my PC, once I allowed, the app popped up.

Answer 3

I also had a smilar problem, I had Samsung galaxy S (GT I9000). I had the drivers installed but the phone showed offline in Android Studio.

Restarting the device while connected to PC solved the issue.

Answer 4

I fixed it by deleting unwanted applications/games from my device--make sure there is more than 15mb free space on the device.). It will work :)

Answer 5

I had the same problem with my Galaxy S4, when connected to a Win 7 64 machine, not showing up as an available device in Eclipse. Tried rebooting phone, starting/restarting adb, switching from usb 3 to usb 2 port... none of which helped. Downloaded Samsung drivers from here: http://www.samsung.com/us/support/owners/product/SGH-I337ZWAATT

installed drivers and then when I reconnected my phone, windows installed the new drivers (took a min or so). I then restarted Eclipse and was able to see the phone and run the app.

I also tried this with the usb 3 port and it works as well.

Answer 6

When you attach your android with your PC, you will get couple of options mentioning the way you may connect with the computer. In my case, I am using HTC Wildfire and it displays

1. Charge only
2. HTC Sync
3. Disk Drive
4. USB Tethering

I was also facing the problem the Question states and I have tested the way David Caunt answered but yet device was showing offline. *

I rechecked the options and found I selected the Disk Drive option. Then I changed the option to Charge only mode and again follow David Caunt's steps. I don't know why, but this time it worked for me.