Lockedness and unlockedness in the post-GSM era

Discussion in 'iPhone' started by RobertoG, Apr 17, 2013.

  1. RobertoG macrumors member

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    Apr 17, 2013
    #1
    Hi guys. First post, and I want to pick the collective brain.

    Is it wise to hold out from buying an unlocked iPhone 5 now, expecting to get an unlocked iPhone 5S that can switch from AT&T lte to Verizon lte with the flip of a nanosim?

    One can dream of a modem that works in all lte frequencies, can't I? :)
     
  2. dictoresno macrumors 601

    dictoresno

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    #2
    dont think the chances of that are gonna happen. as it sits now, the verizon unlocked iphone covers all GSM frequencies worldwide, but only LTE for overseas and for domestic verizon. the at&t one i think covers overseas and only their bands. i dont know if its a limitation of the chip or just done to keep some kind of competitiveness among the carriers. i highly doubt you will see an iphone that will include both verizon and att LTE bands. its probably gonna be one or the other.
     
  3. RobertoG thread starter macrumors member

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    Apr 17, 2013
    #3
    Sure, carrier-sold iPhones will be locked at least in some way, but why not expect a full LTE spectrum iPhone and iPad in the future?
     
  4. barkomatic macrumors 68040

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    Manhattan
    #4
    I admit that would be amazing -- and might tempt me to buy my first true factory unlocked iPhone, but you'd have to consider not only the LTE bands of the major carriers, but all their fallback frequencies as well.
     
  5. bozzykid macrumors 68020

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    #5
    It doesn't support AWS, so that isn't true.
     
  6. dictoresno macrumors 601

    dictoresno

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    #6
    it supports all GSM frequencies. 800/900/1800/1900 and 2100. i said it covers the basic GSM frequencies, therefore will work on any GSM network worldwide. i wasnt talking about newly formed 700 mhz bands or any HSPA+/LTE stuff.
     
  7. bozzykid macrumors 68020

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    #7
    It doesn't support 1700 so it will not support 3G on the majority of the T-Mobile network that hasn't been refarmed.
     
  8. Dwalls90 macrumors 601

    Dwalls90

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    #8
    Wait for the 5S, it will probably have all the bands required for unlocked world LTE.
     
  9. CEmajr macrumors 601

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    #9
    Voice over LTE is still a ways off so the day when one can switch between Verizon, AT&T, Sprint, and Tmobile with just a SIM card swipe are probably at least 5 years away. Right now the CDMA carriers still rely on their archaic CDMA networks for voice. LTE only carries data and is still not fully rolled out yet.
     
  10. thehustleman macrumors 65816

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    Jan 3, 2013
    #10
    Would be nice.

    Would be even nicer if the iphone would catch up with the rest of the 4G phones and allow simultaneous voice and data on the best network.

    It's either voice and data or a good network
     
  11. cynics macrumors G4

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    Jan 8, 2012
    #11
    I wouldn't hold out for the 5S for that reason but you can be sure Apple is pushing for an all in one radio. It's a huge kink in the cog to have multiple iPhones only thing being different is the radio.

    That said everything will try to block you from switching networks from Apple to the carriers. So hope jail breaking is still possible.

    You can get an Verizon iPhone 4S+ to run on AT&T now with jail breaking plus modifying a couple files. I never done it because it sounds like too much of a pain especially if you ever lose the jailbreak, then what? A phone with no network?

    We just need to hope carrier in the US get away from contracts more.
     
  12. dictoresno macrumors 601

    dictoresno

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    #12
    i think youre missing my point. all i was saying is that it would get basic GSM/EDGE signal worldwide. i was dismissing the fact that certain 3G/4G/LTE networks that require specific, newer bands may not work. but for basic GSM usage, it can and will work worldwide on any GSM network.
     
  13. bozzykid macrumors 68020

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    Aug 11, 2009
    #13
    1700Mhz is not a newer band. I guess you could try to use it where 1700Mhz is the primary band but you will not have much luck (like some providers in Canada).
     
  14. dictoresno macrumors 601

    dictoresno

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    #14
    i thought that the 1700 is a supplemental AWS band for 4G (HSPA+), like it is for tmobile i think, and not the primary band used for basic GSM transmission. but i guess WIND for example, relies solely on it. however, thats a one off thing. most other world users will still get signal on the basic 850/900/1800/1900.
     
  15. Applejuiced macrumors Westmere

    Applejuiced

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    #15
    I don't know where you heard that but it is false.
    You cannot get a Verizon 4S to run on AT&T by jailbreaking and modifying a couple files.
    You can use a hardware gevey sim adapter but that only unlocks certain baseband versions only.
     
  16. Nermal, Apr 18, 2013
    Last edited: Apr 18, 2013

    Nermal Moderator

    Nermal

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    #16
    You're quite right about it being supplemental; no iPhone supports GSM 1700 and I'm not sure whether such a thing even exists (edit: according to Wikipedia, it doesn't). It's definitely used for 3G/4G in America though.
     
  17. dictoresno macrumors 601

    dictoresno

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    #17
    thank you. i figured that. i recall here in the US, tmobile uses 1900 primarily but also has 1700 available for its 4G or LTE. its not a primary band that it uses for regular cellular transmission and is indeed new, as of a few years ago.
     
  18. bozzykid macrumors 68020

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    #18
    The new unlocked iPhone and Tmobile iPhone supports the 1700 band since April 12th.
     
  19. dictoresno macrumors 601

    dictoresno

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    #19
    I still don't know where you insist on going with this convo. You missed the point awhile ago. I think you're trying to prove something which no one is even challenging you about.
     
  20. bozzykid macrumors 68020

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    #20
    I was just pointing out the post above mine was wrong is all.
     
  21. dictoresno macrumors 601

    dictoresno

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    #21
    We weren't talking about 1700 support. We were simply saying that tmobile still uses 1900 as its primary frequency for its basic gsm service and 1700 is for the high speed which isn't fully deployed yet. Just forget it.
     
  22. bozzykid macrumors 68020

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    #22
    How is that not talking about 1700 support?
     
  23. Nermal, Apr 19, 2013
    Last edited: Apr 19, 2013

    Nermal Moderator

    Nermal

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    #23
    That's 3G (aka UMTS, HSPA, WCDMA, FOMA), not GSM. My post was specifically talking about GSM (2G), as was the one that I was replying to.

    Contrary to popular belief, 3G is not GSM. It's often (but not always; see NZ and Japan for some examples) paired with GSM but it's almost completely different. A GSM phone can't connect to 3G networks, and a 3G phone can't connect to GSM networks (although a large number of 3G phones also have a GSM radio so that this does work in practice).
     
  24. profets macrumors 68040

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    Mar 18, 2009
    #24
    Not sure if we'll see it in an iPhone 5S this year but I think Qualcomm was working on an LTE radio that covers most bands.

    Its a similar story from the past. For GSM, it took several years for quadband (850, 900, 1800, 1900) to become common. Same with 3G/UMTS. Used to see 850/1900 phones and separate 900/2100 phones for years.
     

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