Downgrade Microsoft Lumia RM-1067 640XL Win 10 - Win 8

Downgrade Microsoft Lumia RM-1067 640XL  Win 10 - Win 8.

Mọi chức năng full sau khi hạ từ Win 10 về Win 8.

Video Downgrade Microsoft Lumia RM-1067 640XL.

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