1. nCogNeato's Avatar
    For the past few months I have successfully used my old Verizon branded Lumia 822 (GSM unlocked) on Straight Talk's AT&T service. Last week I began experiencing the "Unknown sender, Message not found" MMS issue. Since I'm convinced the issue is related to the spectrum/radio in my area, I'm now looking for a Lumia more compatible with AT&T's 4G / 4G LTE network.

    At home I can manually select from 3 different AT&T "networks" (2G/3G, 4G, or 4G LTE). However, due to my 822's limited GSM connectivity, I can only connect to the 2G/3G frequency. I need an affordable Lumia that will connect to the 4G and/or 4G LTE frequency.

    Requirements:
    Under $150 used
    Compatible with AT&T's 4G and/or 4G LTE frequencies on the East Cost (primarily Mid-Atlantic)
    MicroSD expandable storage
    Avoid 512MB RAM models if possible
    Upgradable to Windows 10 Mobile in the future if possible

    Does such an animal exist? What would you suggest?
    09-02-2015 04:09 PM
  2. xandros9's Avatar
    Lumia 820
    Lumia 830 (maybe if you get one that's ATT-handicapped and banged up.)

    Lumia 920/925 if you can give up microSD.

    1520 is probably still too expensive for that.

    I think you can import a Lumia 735 but the band compatibility becomes iffy then, depending.
    nCogNeato likes this.
    09-02-2015 04:19 PM
  3. Dusan Randj's Avatar
    What about 640?
    nCogNeato likes this.
    09-02-2015 04:21 PM
  4. xandros9's Avatar
    What about 640?
    forgot about that actually, heh.
    09-02-2015 04:25 PM
  5. Broad and Market's Avatar
    I'm very happy with my 640 on Cricket. The Win HD LTE is also an option for you at $150
    nCogNeato likes this.
    09-02-2015 04:32 PM
  6. nCogNeato's Avatar
    Thanks for all the suggestions. The 640 looks promising, but I'll do some more research on xandros9's suggestions as well.

    Would I have any difficulty using an AT&T or Cricket branded 640 on Straight Talk, or an AT&T branded 640 on Cricket?

    If anyone else has any other suggestions, mucho appreciated.
    09-02-2015 06:59 PM
  7. Dusan Randj's Avatar
    I have no idea about bands as I'm not fromUSA, but I saw last night 1520 on sale at Expansys for 170$. Check it,it's near your budget.
    nCogNeato likes this.
    09-03-2015 06:49 AM
  8. nCogNeato's Avatar
    I have no idea about bands as I'm not fromUSA, but I saw last night 1520 on sale at Expansys for 170$. Check it,it's near your budget.
    Thanks, Dusan. If I didn't already own a 1520, I'd snatch that up. Right now I'm looking for something smaller.
    09-03-2015 08:57 AM
  9. RumoredNow's Avatar
    A Cricket phone won't cross over to other mvno's using ATT towers. Or this is what I hear... But any other ATT capable device will cross over any which way. If that makes sense.

    IF, as you say, getting Windows 10 Mobile is a priority...

    According to this: Microsoft's Windows 10 Mobile update unlikely to come to 4GB phones | Windows Central

    The following phones are "officially" slated to receive Win 10 Mo.
    • 430
    • 435
    • 532
    • 535
    • 540
    • 640
    • 640 XL
    • 735
    • 830
    • 930

    At this time, many are interpreting the information coming haphazardly out of Microsoft to mean these devices will be in the first roll out wave and that others will follow. It seems pretty definitive at this point that no device with only 4GB internal storage will be able to make the jump to10.

    Also, added to that list should be the BLU Win HD LTE and Win Jr LTE. BLU has stated unequivocally that they will receive 10. There may be other OEMs who have pledged this, but they have not come to my attention.

    I think I understand why you say used in the OP. Bang for the buck. However, if this is to be your primary and you want a modern SoC and a chance at Win 10 Mo early, you really should consider new.

    Also, for the very best chance to get Win 10 Mo you need to have a Factory Unlocked phone. Your model might be eligible, but a carrier can still say no upgrade for you.

    B&H Photo is a great source of Factory Unlocked Windows Phones. I've used them and many others around the board have as well. I don't recall ever hearing a bad word about them. Check their online reviews. Here is what they have at $0 - $200. (Maybe stretch your budget just a bit if you have to.)
    http://www.bhphotovideo.com/c/search...&mnp=0&mxp=200

    Here is what you need from any purchase. Check the radio spec and make sure the following is included (more doesn't hurt, this is a minimum.)
    • 2G/GSM/GPRS/EDGE requires 850/1900 MHz
    • 3G/UMTS/HSPA/H+ requires 850/1900 MHz
    • 4G/LTE requires 700/1700/1900/2100 MHz or Bands 2/4/17 (there is not a band missing, band 4 requires 1700 & 2100)
    nCogNeato, libra89 and HeyCori like this.
    09-03-2015 11:06 AM
  10. nCogNeato's Avatar
    Thank you everyone, especially RumoredNow.

    After a lot of research & comparisons, I've decided to pick up the $80 640 GoPhone model from my local Best Buy tonight, and unlock it before inserting a SIM as discribed HERE and HERE.

    From what I understand, this model should have no issue using Straight Talk & Cricket's AT&T LTE. Is this correct?
    RumoredNow and HeyCori like this.
    09-03-2015 04:48 PM
  11. RumoredNow's Avatar
    Nice choice and you should have no worries with the phone as GoPhone rides on ATT towers without an unlock no matter which mvno you pick. I'd still unlock it as the process is free and easy...

    However, with that phone you will probably be required to get on Insider to see 10. I doubt ATT will push that upgrade to Go Phones.
    nCogNeato likes this.
    09-03-2015 05:02 PM
  12. camaroz1985's Avatar
    You can find an 830 in your budget, I did.
    nCogNeato likes this.
    09-03-2015 05:04 PM
  13. RumoredNow's Avatar
    There is an unlocked from ATT 830 + Fitbit in Marketplace right now. Your mention just jogged my memory.

    http://forums.windowscentral.com/mar...condition.html

    Seller has dropped the price to $140.
    nCogNeato likes this.
    09-03-2015 05:31 PM
  14. camaroz1985's Avatar
    One thing to note as well is that for Cricket you don't need it to be unlocked from AT&T
    09-04-2015 02:58 PM

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