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  1. #1
    Jumpmaster
    Points: 2,456,084, Level: 100
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    Chris Rodriguez's Avatar
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    Join Date
    Oct 2010
    Customer Since
    Sept 2010
    Location
    Des Moines, IA
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    4,421
    Phone
    Note 3 / Galaxy S5



    Cricket S4 GSM Unlocked?

    Has anyone tried to stick a foreign SIM in their S4? Particularly a from a GSM carrier.

    According to the specs Samsung lists, it wouldn't work even if the phone didn't reject the card.

    --------

    LTE: Bands 2/4/25; CDMA 1x/EVDO Rev.A: 800/AWS/1900MHz

    Sent from my SAMSUNG-SM-N900A using Tapatalk
    Please check the forum and post there before PMing me. I have over 674 unread PMs due to the fact that they are issues which should have been addressed here.

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  3. #2
    Junior Member
    Points: 540, Level: 10
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    1 out of 1 members liked this post.

    Cricket Galaxy S4(SCH-r970c) uses MDM9615M RF chip which includes GSM functionality which is the same chip found on Verizon Galaxy S4(SCH-i545 *note: at&t uses different RF chip MDM9215M) that is confirmed to worked with GSM sim but cricket decided to firmware lock the drivers for GSM so unless you do a JTAG or miraculously flash baseband of verizon Galaxy s4 to ours, it will not work with GSM and you will recieve a message saying "Invalid sim" even if you try to unlock it.

 

 

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