Quick Post this time. For all you googling Unknown error by ErrorCallback in your Samsung Galaxy s3. I have a bad news for you. It is a hardware problem. Forget wiping cache, don’t bother with factory reset. Sure you can try the famous solution of tapping the camera as you open the Camera App, it
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So you finished your app and exported your APK file to your hard drive. You want to add app to Google Play? It probably took you a while to figure out the digital signature stuff etc. By that stage you are most likely tired and want the app to be up on the Google Play
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