1. emjey's Avatar

    I wanted to go back to 8.1 in my lumia 730, which is my primary device. Currently, when i try installing the recovery tool version number 2.1.1 with publisher microsoft corporation, an error is displayed during installation,

    "Hash value error with error code 0x80091007"

    Anyone facing the same, and any fixes for this?
    07-05-2015 06:34 AM

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