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I’m trying to test the android Studio app on celelular and when I open the android Emulator appears this phrase in yellow NO USB DEVICES, then I clicked on troubleshoot and searched the Scan and still not sure what I can do ?
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Whoa, that’s all right!?
Make sure the USB debugging on your Android phone is enabled. USB debugging is meant to connect and share information between a smartphone and a computer.
How to enable debugging
- Open the Settings;
- Select "About the device";
- Press 7 times Build Number / Build Version / Build Number version;
- Go back to Settings;
- Choose Developer Options and activate it, as well as extras;
- Enable USB Debugging.
The process can of course be undone by simply disabling USB Debugging on your device. You can also revoke any USB debugging authorization from authorized computers. Just click Revoke USB debugging authorizations in the developer options.
If the problem persists giving adb error
Often on Windows it will not recognize the device completely and due to driver problems the device will not be displayed.
- go to the settings
- Control panel
- hardware and sound
- device manager
And look for any device that shows an error. Many Android’s will be displayed as an unknown USB device. Select this device and try to update the drivers for it.
Another possible solution
Make sure USB debugging is active. I’ve noticed an icon in the upper left that said, "Connected as a media device. Tap for other USB options". Click on it and switch from MTP (Media Device, Media Device) to PTP (Camera) and then test.
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