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AT&T GoPhone Nokia Lumia 640 No-Contract Smartphone EXPIRED

andyk 324 11,129 February 24, 2016 at 02:10 PM in Smartphones (4) More Best Buy Deals
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Promoted 02-27-2016 by longmanj9 at 07:58 PM View Original Post
Best Buy has AT&T GoPhone Nokia Lumia 640 No-Contract Smartphone for $29.99. You may select free store pickup or Shipping is free on orders of $35 or more, otherwise it is $3.98. Thanks andyk

  • Qualcomm Snapdragon 400 1.2GHz Quad-Core Processor
  • 1GB RAM
  • 8GB Internal Memory
  • 5" 1280x720 Display w/ 8MP Rear Camera
  • 4G LTE
  • Windows Phone 8.1

No longer available

Best Buy via eBay also has AT&T GoPhone Nokia Lumia 640 No-Contract Smartphone for $29.99. You may select free store pickup, otherwise Shipping is $3.99. 

Editor's Notes & Price Research

Written by longmanj9

There is a limit of 1 per customer.


Original Post

Edited March 4, 2016 at 06:58 PM by widgit
Last chance?

Store Pickup: Not Available now says Available at most stores
No longer says "Backordered: Usually ships in 1-2 weeks".

"This item is limited to 1 per customer." if you try to change quantity to 2 in cart.

Shipping is $3.99, unless you have Elite or your order is $35+.

Also limit 1 on eBay:

Lots of info here:

Microsoft Lumia 640 vs (just announced) Microsoft Lumia 650,9942
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andyk Pro
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Community Wiki

Last Edited by SDPA March 6, 2016 at 02:22 PM
Unlocking - Do NOT open the retail packaging before unlocking

Simple steps:
1. Go to below link and Accept terms and click Continue
2. It is very important to select "Non-AT&T Mobility customer"
3. Provide Basic details , IMEI and email address.
4. You you'll immediately receive email, YOU HAVE TO CONFIRM via the link in email.
5. Wait for your Unlock code to be delivered in email within 48 hrs.

There have been reports of 'generic'(gmail,ymail,hotmail) email addresses getting rejected. Use a non-generic(work ,edu) address if possible.

No sim needed in the phone at all to call up the unlock screen.
DO not turn on the phone, remove the ATT sim before anything. Now you are safe.
Boot the phone, get past first "No Sim" error by closing.
Tap the "Phone" icon to bring up Sim error again and close again.
You can now access the dial pad, dial ##7820# and you will get the
unlock screen. Enter Unlock Code and hit enter.
Wait about a minute or so... you should then see the "Unlocked" padlock screen.
Reboot the phone. You are done. You can redial the ##7820# to verify it is still unlocked

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 ATT says "You haven't completed 6 months of paid service as a Prepaid/GoPhone® customer". Just ignore the it and resubmit the request. You can use the exact same email. No one knows why this happens

How to de-brand ATT Lumia 640 LTE (Flash T-Mobile ROM)
Credit: anubis23 (xda-developers)
Disclaimer: This method may brick your phone! Back up all data. I am not responsible if you break your phone. Use the steps below at your own discretion! Please be careful.

Supports all bands used by T-Mobile, including LTE band 12 (700bc).

For international use, 4 of 5 WCDMA bands are covered (missing 900MHz). LTE band 7 is supported, used in Europe and elsewhere, but with a lot of foreign LTE bands missing you should expect it to connect on WCDMA when overseas.

GSM network: 850MHz, 900MHz, 1800MHz, 1900MHz
WCDMA network: Band 1 (2100MHz), Band 2 (1900 MHz), Band 4 (1700/2100 MHz), Band 5 (850MHz)
LTE FDD network10: Band 17 (700MHz), Band 2 (1900MHz), Band 4 (1700/2100 MHz), Band 5 (850MHz), Band 7 (2600MHz), Band 28 (700MHz), Band 12 (700MHz)

Unlocking and flashing T-Mobile ROM will enable band 12 if you update the .nvi file. It is confirmed. (see post #337 on xda forum for commands to enable band 12)

Update (3/4/2016): It is now available again for store pickup at Bestbuy.

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Works great with Win10 Mobile (preview)....

Best "phone" with the HW specs that it has, for the price. (if all you need are the "basic" apps).
Reply Helpful Comment? 5 1
Took the chance and snagged one as a backup phone/mp3 player
Reply Helpful Comment? 1 0
Why did you say Last Chance?
Reply Helpful Comment? 0 0
Will this work if I stick a t-mobile sim in, or does it require unlocking? and is that difficult to do? Thank you
Reply Helpful Comment? 0 0
Every store is clearing the shelfs for the inminent arrival of the Lumia 650
Reply Helpful Comment? 0 0
I bought one earlier in the week at the local AT&T Store. Same price 29.99. Seems like a nice phone for the price. Got the unlock code this morning and am going to debrand and flash to Tmobile.
Reply Helpful Comment? 0 0
Have filed my unlock request online through AT&T using phone's IMEI
Hoping to get favorable reply in 2-3 days
Reply Helpful Comment? 0 0

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Quote from darkslide29 View Post :
Will this work if I stick a t-mobile sim in, or does it require unlocking? and is that difficult to do? Thank you
Unlocking is easy from ATT Specify non-att customer. If you want Wifi calling, VoLTE, HD Voice and Band 12 support that is a little harder (instructions over at xda-developers ) but works really well.
Reply Helpful Comment? 4 0
Last edited by jamssx February 25, 2016 at 08:46 AM.
Quote from darkslide29 View Post :
Will this work if I stick a t-mobile sim in, or does it require unlocking? and is that difficult to do? Thank you
it will require unlocking. but it will work on Tmobile. Here is a link to the reddit process to unlock the device.
Reply Helpful Comment? 0 0
Got one as a test device a few days ago. I'm very surprised how smooth it is. Upgraded to windows 10 preview. took about 2 hours. windows store is the same as the windows 10 for desktop. so if the app is cross platform it works. also a great xbox 1 remote if you're into that sort of thing.
Reply Helpful Comment? 2 0
Joined Dec 2004
L7: Comfortably Numb
4,969 Posts
1,355 Reputation
I bought one last week. It works. I find Windows awful.
The same phone was &30 at the AT&T store.
I looking forward to replacing it with an Android.
But... it works okay.
Reply Helpful Comment? 2 3
I bought 2. But I really don't "need" them. I already have too many backup mp3 players. Thinking about returning.
Reply Helpful Comment? 1 3
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