AT&T Lumia 640 XL on Amazon for $70

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ven07

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I'm not 100% sure but I would think that it should be similar.

My only doubt comes from the fact that the 640 was actually touted as a 'go-phone' and the XL is missing that title, but now that you mention it, the process might be similar yes.
 

Indistinguishable

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Nov 16, 2012
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Steps for unlocking an AT&T device:

Unlocking – Do NOT open the retail packaging before unlocking
Request Unlock Code

https://forums.windowscentral.com/e...2F%3F%255C%3D%23%2Funlockstep1&token=aHez8xpX

Select Non-AT&T Mobility customer > enter info

IMEI # is printed on the bottom of the retail box

Verify unlock request – AT&T will send a confirmation email. Click the confirmation link
Enter Unlock Code – Wait for ATT to email the unlock code then choose 1 of the following methods

With non AT&T SIM – if you have a SIM from any other carrier
Insert the non AT&T SIM and turn the phone on
Wait for the unlock prompt and enter the unlock code

Without non AT&T SIM – if you don't have a SIM from any other carrier
Remove the AT&T SIM and turn the phone on
Navigate to phone dialer and enter ##7820#
Enter unlock code
Unlock Info
SIM unlock is permanent, even after a hard reset



If AT&T emails you saying Your request for device unlock requires additional research to determine eligibility, just ignore it, you don't have to do anything. AT&T will email the code later


If AT&T emails you saying your unlock request is denied. Just ignore the email and resubmit the request. You can resubmit with the exact same email. No one knows why this happens
 

RumoredNow

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^^^ Wot he said ^^^

Caveat: AT&T allows only 4 (or 5?) unlocks per email address in a 12 month span.

Of course we all have multiple email addresses and I just alias my name on a secondary email account, LOL.
 
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