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How to switch over an unlocked AT&T galaxy s5 to verizon towers.

Discussion in 'Android Devices' started by Angelus343, Feb 14, 2015.

  1. Angelus343

    Angelus343 Lurker
    Thread Starter

    Hello, I have a AT&T galaxy s5 that i unlocked recently. I see that the towers are not compatible or something to that matter, do i need to root/flash the firmware so that it will recognize the Verizon towers? Im not very savvy in this area.
     



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  2. AZgl1500

    AZgl1500 Extreme Android User

    The two S5 models have different radios in them.

    I believe that the LTE bands don't quite match up the same in all coverage areas.

    The phone will work on most of VZW's channels EXCEPT for where the signals get really weak and drop back to CDMA. If that happens, and no roaming towers are available at that time, you will loose your connection.

    The ATT models do not have CDMA capability AFAIK...

    But, you should get 3g just about anywhere. If the lack of 4g at times doesn't bother you too bad, you are good to go. Otherwise, see if you can do a trade with someone for their VZW version of the S5.
    ____________________________________
    2 ea. Verizon Galaxy S5, 4.4.4 forever!, ART
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  3. Angelus343

    Angelus343 Lurker
    Thread Starter

    Im not getting 3g at all, is there a setting that i am missing?
     
  4. AZgl1500

    AZgl1500 Extreme Android User

    Is the phone still on AT&T, or have you already put a VZW sim card in it?

    If it has a VZW sim card, go to a Verizon retail store and have them check the APN codes to be sure everything is correct.

    Both versions will work on the GSM bands so you should see 3g and 4g in areas where it is available. Not all cell sites are equal in capability to transmit 3g/4g
     
  5. Angelus343

    Angelus343 Lurker
    Thread Starter

    I have a VZW sim card in there, the guys at the verizon said that it can't work.
     
  6. EarlyMon

    EarlyMon The PearlyMon
    VIP Member

    And they're absolutely correct.

    3G on Verizon is a service level on CDMA, not the same as 3G on AT&T or T-Mobile.

    The sim card for Verizon can support LTE, and Verizon phones typically have world capability - you can leave the US and use GSM networks.

    But you're not going to get a GSM phone working on Verizon - the sim has nothing to do with CDMA, so no 2G or 3G.
     
  7. Angelus343

    Angelus343 Lurker
    Thread Starter

    So basically i cannot use this phone at all with a verizon sim card? And what i'm getting from this is to get a GSM phone in the future.
     
  8. EarlyMon

    EarlyMon The PearlyMon
    VIP Member

    You already have a GSM phone.

    Get a GSM phone to use on AT&T or T-Mobile, but check to see if the non-carrier version of a phone will match their LTE bands.

    Get a Verizon phone to work on Verizon and a Sprint phone to work on Sprint, both of which are CDMA but use different primary frequencies for CDMA and different LTE bands.

    You can't use that phone on Verizon regardless of what sim you put in it.
     
    #8 EarlyMon, Feb 15, 2015
    Last edited: Feb 15, 2015

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The Samsung Galaxy S5 release date was April 2014. Features and Specs include a 5.1" inch screen, 16MP camera, 2GB RAM, Snapdragon 801 processor, and 2800mAh battery.

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