Windows 10 Mobile build 14977 failing with error 8007007B for some users

Windows Central

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If you hit error 8007007B installing the latest flight of Windows 10 Mobile, you'll have to wait until the next flight, Microsoft says.
windows-10-mobile-lumia-start.jpg

After weeks of waiting, Microsoft is now releasing a new test preview for mobile devices. This time the company is pushing Windows 10 Mobile build 14977 to the Fast ring with a small set of improvements and changes, and Microsoft Edge on mobile get support for epub file format.
However, some phones may get the error 8007007B, which causes the phone to fail to install today's update. There is a forum thread dedicated to the topic, which was known prior to the update going live.

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