debugging - Adb shows 'device' in command line but unauthorized in Android Studio -


i using usb debugging cubot s208 android app.

if type adb devices command line receive following:

0123456789abcdef device

so device authorized.

however, in android studio receive following message:

for device 0123456789abcdef: device unauthorized. please check confirmation dialog on device.

why case?

the device recognized android studio under name "cubot s208" recognizes debuggable applications too.

so seems fine.

i have allowed usb debugging laptop when message came on phone screen.

any ideas?

for device 0123456789abcdef: device unauthorized. please check confirmation dialog on device.

execute these adb commands: 

adb kill-server  adb start-server

after reconnect device , tick debugging option on device.


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