Add undetected device error message in FAQ
@@ -37,6 +37,8 @@ Check [stackoverflow][device-unauthorized].
### Device not detected
+> adb: error: failed to get feature set: no devices/emulators found
+
If your device is not detected, you may need some [drivers] (on Windows).
[drivers]: https://developer.android.com/studio/run/oem-usb.html
