I am a complete newbie to android development, though I know a thing or two about programming. I was trying to install an app that I had developed (a single .java file) in eclipse on my gingerbread phone, but the eclipse IDE fails to recognize my phone as a VALID device to install the app. Maybe because I have developed it in ADT 16 (4.1). Is there any way to install the app on my phone?
You have to change the Minimum Version of your Android App, Right Click on the Project, Go to Properties, Select android & Change the Version from android 4.1 to the Version of your mobile Device.
Clean the Project & Run Again, Copy the new *.apk to android, It should work now