1. Jim Powers7's Avatar
    I have a spare Lumia 521 that I want to try the preview on. If I switch My SIM over to the spare and download the preview will it mess up my MSFT Acct or primary handset if I switch SIM back to the primary. Thanks.
    07-26-2015 06:17 PM
  2. xandros9's Avatar
    No, I've done the same before. Just don't lose track of data usage on both phones!
    mary beth hale likes this.
    07-26-2015 06:28 PM
  3. Harrie-S's Avatar
    No it will not but you do not need to put a SIM in your 521 to download the preview.
    Furthermore you could create a new MS account for the 521 so then really nothing can happen.

    Good luck

    And please first download the WPRT because you need it to roll back to WP8.1
    07-26-2015 06:29 PM
  4. mary beth hale's Avatar
    Switching the SIM will not mess up your MS account or primary phone. Do you have access to Wi-Fi? That's really all you need to try out the preview...unless you want to load the preview and then actually use it as your daily phone. I used a little 635 to play with the W10TP and it was fine on Wi-Fi.
    Jim Powers7 likes this.
    07-26-2015 06:31 PM
  5. mary beth hale's Avatar
    No it will not but you do not need to put a SIM in your 521 to download the preview.
    Furthermore you could create a new MS account for the 521 so then really nothing can happen.

    Good luck

    And please first download the WPRT because you need it to roll back to WP8.1
    Beat me to it, Harrie/Xandros. BTW...its great that you always mention knowing how to use the Recovery Tool. So important!
    Jim Powers7 and Harrie-S like this.
    07-26-2015 06:33 PM

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