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Microsoft Windows Phone – “0x89740005”

0x89740005

The above error message appears when you try to deploy a Windows Phone Project to a physical Windows Phone device.

Solution:

Launch Windows Phone Developer Registration tool
Start -> All Programs -> Windows Phone SDK 7.1 -> Windows Phone Developer Registration

Windows Phone Developer Registration for 0x89740005 error

Insert your Windows Live ID and Password then click on Register button.
Note: The Zune software must be running, the phone connected to your pc, with unlocked screen, with correct date time setting.

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