Then, re-allow your computer for USB Debugging. If you think you've done this but yet your device is still marked as OFFLINE, select the Revoke USB debugging authorization option in 'Developer Options'. Before pressing OK, make sure your check Always allow from this computer, so that you don't have to go through this again in the future.

A popup should appear asking Allow USB debugging? and providing the computer's RSA key fingerprint. I found mine under Settings > About Phone > Software information.Ĥ) Make sure you've allowed USB debugging for your specific computer: Although you may have your USB Debugging option enabled, you still need to allow USB debugging for your specific computer.

If you can't find your Developer Options, find your build number within the settings and tap it 7 times consecutively.

I chose the Search automatically for updated driver software option, since it's much easier.ģ) Enable USB debugging under your Developer Options: For my Samsung Galaxy S9, I found mine under Settings > Developer Options. Right click the device, and then select Update Driver Software. Mine was under Portable Devices and the name started with SAMSUNG, so finding your device shouldn't be too hard. In your Computer Management window, find a tab on the left pane that says Device or Device Manager. Then, select Manage (requires administrator privileges). If it's properly connected, your phone should be charging.Ģ) Make sure that your device's driver software is up-to-date: Simply go to your File Explorer and then right click Computer. Try this before exploring my listed solutions to prevent wasting more time than needed.ġ) Make sure that your phone is properly connected to your PC with a USB cable: Before going over these fixes, make sure that you have at least connected your phone to your computer properly. Note: The top answers recommend to disable Instant Run.

Error installing apk on mac emulator