How to find the MS account associated with a phone

[Windows Central Question]

I am switching from a dead Lumia 521 to a new Lumia 640. I have two MS accounts and I do not know which was associated with my phone.
Since I want to restore my settings, apps and data, I don't want to login to the wrong account and lose them.

How can I find out which of the 2 accts was the old phone linked to?

 

[RumoredNow]

Log into one of the accounts in a PC browser and check the devices tab... That should show the device if it was on that account.

Or log into one of the accounts on OneDrive > Get more storage > Device backups to check for the backup you want to use and then associate that account with the new device.


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