This error occurs again when you debug and develop the WP software. The error occurs because you need to register your mobile phone in the SDK.
The following are three required conditions:
1 first, you must confirm that you have installed WP sdk7.1 or 8.0
2. You must have a Ms live ID.
3. You 'd better connect your phone to wifi or have a smooth network connection.
Search: Windows Phone developer Registration
You can paste the above text directly in the running:
:
Then click Open
Enter your live ID
Wait for a moment.
You can debug the program.
When debugging the window phone program today, run the prompt: unable to connect to the device because it is a locked pin.
The reason is that your WP mobile phone is locked or in standby status.
Unlock the screen to solve this problem.
You can set ----> screen lock + wallpaper ----> screen lock time to 30 minutes or no.