1. iFalcon's Avatar
    I already have a family plan on AT&T with a shared data plan. I currently use an iPhone 5 on it.

    Probably a silly question but can I just insert the SIM card into the 640 and I'll be set? I do have adapters for a different size of SIM card. I'm planning to pick the 640 up today and did not know if already have a plan would prevent it from working. I was thinkimg this is a pay as you go phone.

    Thanks.
    12-28-2015 04:44 AM
  2. oditius's Avatar
    I use my 640 for a backup phone. Right now I have to return my Note Edge, so I just took the sim out of the Edge and put it in the 640.. No problems... ANd I am also on AT&T.
    12-28-2015 04:49 AM
  3. iFalcon's Avatar
    Great. Does it take the nano or micro? Get them confused. I have an adapter o have to use the lg G3. I have a serious phone fetish issue. Lol.
    12-28-2015 04:52 AM
  4. aybarrap1's Avatar
    Micro
    12-28-2015 06:21 PM
  5. gordonfink's Avatar
    You can use an adapter, and it will work fine. You might want to submit an unlock request via att's website first (use the non-customer radio button), just to have it unlocked in case you want to sell it. Once activated, you have to wait a few months, and it will use one of your yearly customer-based unlocks.

    With att, on occasion, an IMEI-mismatch between their system and your phone may cause you to lose cellular data ability. It doesn't happen all the time, but sometimes If that happens, call into customer service and update the IMEI in their system, and all will be good again.

    Their system should update your IMEI automatically, but it doesn't always, so that can happen.
    pankaj981 likes this.
    12-29-2015 08:06 AM
  6. pankaj981's Avatar
    ^^ to add to this: @iFalcon: An unlock is not needed to use your existing SIM with the AT&T 640 but once you insert your existing SIM and activate the phone with it AT&T might turn down your unlock request in case you want to sell it later.
    libra89 and gordonfink like this.
    12-29-2015 08:25 AM
  7. boltman2013's Avatar
    ^^ to add to this: @iFalcon: An unlock is not needed to use your existing SIM with the AT&T 640 but once you insert your existing SIM and activate the phone with it AT&T might turn down your unlock request in case you want to sell it later.
    They do not "turn down" unlock requests ever
    12-29-2015 11:46 AM
  8. pankaj981's Avatar
    They do not "turn down" unlock requests ever
    They do...if your case does not adhere to their unlocking policy.
    12-29-2015 01:28 PM
  9. boltman2013's Avatar
    They do...if your case does not adhere to their unlocking policy.
    Mine didn't twice and they still unlocked within 48 hours
    12-29-2015 02:01 PM
  10. pankaj981's Avatar
    Mine didn't twice and they still unlocked within 48 hours
    Good to know that yours wasn't turned down twice but that doesn't necessarily mean they...
    They do not "turn down" unlock requests ever
    There are others on these forums that would agree with me.
    12-29-2015 02:56 PM
  11. boltman2013's Avatar
    Good to know that yours wasn't turned down twice but that doesn't necessarily mean they...


    There are others on these forums that would agree with me.
    I don't think so. I think a lot of it is "thinking" they will turn you down rather than reality.
    12-29-2015 03:11 PM
  12. pankaj981's Avatar
    I don't think so. I think a lot of it is "thinking" they will turn you down rather than reality.
    The reality is they will turn you down if your device does not satisfy their unlocking policy. For example a new off-contract unactivated phone can be unlocked provided it hasn't been activated on a prepaid GoPhone. The moment a GoPhone SIM is inserted the only way AT&T will unlock it is after 60 days of service. Another example would be they won't unlock a device which is on their NEXT plan and all installments have not been paid. The last one would be they won't unlock a device if it's still on contract. So you see..there are plenty of reasons for them to turn you down. Besides I have been turned down quite a few times for all the reasons stated.
    Laura Knotek likes this.
    12-29-2015 03:28 PM
  13. boltman2013's Avatar
    The reality is they will turn you down if your device does not satisfy their unlocking policy. For example a new off-contract unactivated phone can be unlocked provided it hasn't been activated on a prepaid GoPhone. The moment a GoPhone SIM is inserted the only way AT&T will unlock it is after 60 days of service. Another example would be they won't unlock a device which is on their NEXT plan and all installments have not been paid. The last one would be they won't unlock a device if it's still on contract. So you see..there are plenty of reasons for them to turn you down. Besides I have been turned down quite a few times for all the reasons stated.
    Don't think anyone is popping in the Go Phone SIM and then going to ATT..nor many buying the cheap 640 on NEXT

    A vast majority are buying the 640 as a go phone or through a 3rd party and putting in their existing ATT SIM that will unlock in 48 hours. That covers most all 640 situations.
    12-29-2015 03:37 PM
  14. pankaj981's Avatar
    That covers most all 640 situations.
    Not all. Here is one for you that's has been quite popular these days with the promotions AT&T/Microsoft has been running. For non-AT&T customers (as me), activating on AT&T is a certain no-no since AT&T won't provide an unlock code once activated on the new GoPhone SIM.
    12-29-2015 03:48 PM
  15. boltman2013's Avatar
    Not all. Here is one for you that's has been quite popular these days with the promotions AT&T/Microsoft has been running. For non-AT&T customers (as me), activating on AT&T is a certain no-no since AT&T won't provide an unlock code once activated on the new GoPhone SIM.
    That is same thing I said ..no one pops in go phone sim and expects ATT to unlock it. That is well known.

    Truthfully non-att customers should not ever be able to unlock an Att go phone.
    12-29-2015 03:56 PM
  16. pankaj981's Avatar
    That is same thing I said ..no one pops in go phone sim and expects ATT to unlock it. That is well known.
    The GoPhone SIM comes inserted in the phone so its only a matter of turning it ON for the first time and registering it on the AT&T network.

    Truthfully non-att customers should not ever be able to unlock an Att go phone.
    AT&T does unlock phones that come in GoPhone kits (Example the AT&T 640 GoPhone kit) for non-customers as long as the phone is not registered with a GoPhone SIM accidentally or on purpose (above comment).
    Laura Knotek and libra89 like this.
    12-29-2015 04:10 PM

Similar Threads

  1. Problem in deleting in sd card and formatting
    By potter007 in forum Ask a Question
    Replies: 3
    Last Post: 01-12-2016, 03:24 AM
  2. Dual Sim vs Single Sim
    By wasim sallam in forum Windows Phones
    Replies: 24
    Last Post: 12-30-2015, 10:10 PM
  3. Simple question 1: New SD card?
    By tribexx in forum Windows Phones
    Replies: 1
    Last Post: 12-28-2015, 12:18 AM
  4. Replies: 6
    Last Post: 12-27-2015, 06:45 PM
  5. Can someone from Microsoft actually answer a question on here?
    By Windows Central Question in forum Ask a Question
    Replies: 1
    Last Post: 12-26-2015, 05:14 PM
LINK TO POST COPIED TO CLIPBOARD