1. sharma abhilash's Avatar
    I am using lumia 640 xl on stock windows 8.1 how should i update to 10572 built of insider ??
    10-21-2015 07:31 AM
  2. Pete's Avatar
    Go to this web page and follow the instructions. It's fairly straight forward, but be sure to read all of the articles before you do anything so you're sure of what to expect.

    aximtreo and sharma abhilash like this.
    10-21-2015 07:40 AM

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