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Thread: Sonic 4G Works on AT&T 4G (HSPA)

  1. #1
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    Sonic 4G Works on AT&T 4G (HSPA)

    So I got my Sonic 4G unlocked (eBay < $4). Speedtest on AT&T 4G (using Straight Talk)



    Probably could get this bad boy on AT&T's $15 dumbphone data plan and not be detected as a data device.

  2. #2
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    According to T-Mobile's website it works off UMTS 850 MHz which is compatible with parts of AT&T's HSPA network. http://www.t-mobile.com/shop/Phones/...Mobile-Hotspot

    Or does it have hidden UMTS 1900 MHz capabilities?

  3. #3
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    Quote Originally Posted by Danny4G View Post
    According to T-Mobile's website it works off UMTS 850 MHz which is compatible with parts of AT&T's HSPA network. http://www.t-mobile.com/shop/Phones/...Mobile-Hotspot

    Or does it have hidden UMTS 1900 MHz capabilities?
    http://m.engadget.com/2011/07/08/edi...ly-given-t-mo/

    According to that, it does support 1900mhz 3G. But I can't view the FCC web site on my phone so I can't confirm.

    Sent from my LG Nitro HD

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    Can you recommend an unlock service provider for the tmo sonic 4g? Tmo has absolutely informed that the manufacturer goes not have the code.

  5. #5
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    Quote Originally Posted by advgal2 View Post
    Can you recommend an unlock service provider for the tmo sonic 4g? Tmo has absolutely informed that the manufacturer goes not have the code.
    Just search eBay

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