How to Unlock your Windows 10 phone remotely
Applies to Windows 10 and Windows 10 Mobile
Try unlocking your Windows 10 phone remotely if you get this message: "This device has been locked for security reasons. Connect your device to a power source for at least two hours and then try again." The key is to reset your PIN through account.microsoft.com.
Go to account.microsoft.com/devices
Sign in with the same Microsoft account you use on the phone.
Click the Find my phone link.
Enter a new PIN. Now you'll be able to unlock your phone with your new PIN.
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