I recently updated the Android Studio to 2.3. When I hit the instant run button, It compiles the app but doesn\'t open the app on the Android device. Even \'Hot Swap\' is not en
This is a device related bug. There is a google issue discussion:
https://code.google.com/p/android/issues/detail?id=235879
They have found some solutions:
Asus devices: you have to allow auto-start for apps you want to start with instant run https://www.asus.com/support/faq/1013752
Devices with MIUI: you have to disable MIUI optimization (see other answer in stackoverflow) https://stackoverflow.com/a/42579815/1341576