I had live ID with "gmail.com" in the end, and changed that to live.com alias. All services updated to the new liveID name(its unique identifier stays the same). But the phone for now is trying to use old email with "gmail" to access liveID features. Is there a way to change it without HARD RESETTING the phone(actually its same old LiveID with different name). My phone is developer unlocked. May be there is some way to do that "not with tools provided officially"


The official way to change the Windows Live ID associated with your phone is only with a reset. In your case, the Unique ID (which is a number associated with every Windows Live ID) is the same and you've changed only the Widows Live ID (which is an e-mail address). Even so, this email account cannot be changed on the Windows Phone since the first Live email account you set up and synchronize with the device cannot be deleted or changed. There's been a request put up to change this.

As for a unlocked phone, I've looked for a solution at most of the registry tweaks and homebrew tools currently available and haven't come across an option for this yet.

  • Trying to do that with registry update..Will write here about the result..
    – 0x49D1
    Apr 30 '12 at 15:47
  • cant run registry editor on officially unlocked phone. Returns error-0x81030120 (
    – 0x49D1
    Apr 30 '12 at 15:52
  • Nice :) worked this method (for LG Optimus 7): 1. Install the MFG app by dialing: ##634# 2. Open the MFG app. The password is: appmfg#*# 3. Go to Engineer Menu -> Other Settings -> Edit Registry .. then edit registry from instruction here: forum.xda-developers.com/showthread.php?t=907971 (How to change primary LiveID email without resetting WP7 (by sensboston)) . Seems working without hard reset.
    – 0x49D1
    Apr 30 '12 at 16:27
  • Nice. You may want to add this information as new answer below and mark it as accepted.
    – Thomas
    Apr 30 '12 at 16:42

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