AT&T iPhone 4S with bad esn can I unlock and use w/ tmobile?

Discussion in 'iPhone' started by K1ngkev1n1, Apr 26, 2013.

  1. K1ngkev1n1 macrumors regular

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    #1
    Wanted to know this before I bought one on eBay. Would pay someone couple bucks in eBay as well to unlock it then activate in tmobile
     
  2. Applejuiced macrumors Westmere

    Applejuiced

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    #2
    Nope, it wont work on any US GSM carriers.
    You can unlock it with an IMEI unlock and use it on any GSM company outside the US only.
     
  3. 617aircav Suspended

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    #3
    Won't work in the USA or even on telus in Canada.
     
  4. K1ngkev1n1 thread starter macrumors regular

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  5. braddick macrumors 68040

    braddick

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    #5
    I thought these may work on Cricket's system, but perhaps that is Verizon iPhones?
     
  6. Applejuiced macrumors Westmere

    Applejuiced

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    #6
    Nope.
    This is a gsm 4S.
    Verizon iPhones, yes.
     
  7. K1ngkev1n1 thread starter macrumors regular

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    #7
    What kind of data speed would u get with a verizion iPhone 5 on cricket?
     
  8. Applejuiced macrumors Westmere

    Applejuiced

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    #8
    Slow CDMA 3G speeds.
     
  9. lordofthereef macrumors G4

    lordofthereef

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    #9
    Doesn't cricket officially have the iPhone now? Are they still allowing unofficial iPhones? Ate they still allowing the use of unofficial handsets then?
     
  10. dictoresno macrumors 601

    dictoresno

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    #10
    GSM phones dont have ESN's, only CDMA phones do. they use IMEI's. either way, i understand that at&t and tmobile will block IMEI's however, i wasnt aware that it will carry the effect across carriers. i think at&t will block one of their IMEI's from being used on their network only. however, it may be used on another carrier. i would double check that, since like i said, i dont think its cross honored between carriers here yet. i still would still never buy a blacklisted phone on principal.
     
  11. 617aircav Suspended

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    #11
    Tmobile and Att now share a database of blacklisted phones.
     
  12. nicholasss macrumors regular

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    #12
    What's your source? Is there a link?
     
  13. K1ngkev1n1 thread starter macrumors regular

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    #13
    Can you buy an iPhone 5directly from tmobile? Without signing up for contract? I have a 30$ per month plan now like to hook it up to
     
  14. nicholasss macrumors regular

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    #14
    Yeah from them or apple.
     
  15. hexonxonx macrumors 601

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    #15
    Sell it on eBay. For some reason, there are people willing to pay a lot of money for bas ESN phones.

    I sold a bad ESN Verizon 64GB 4S for $375 back in January.
     
  16. saud0488 macrumors 6502

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    #16
    Cause you can pay to have them cleared.
     
  17. 617aircav Suspended

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    #17
    That service cost way over $100 to even attempt.

    ----------

    Do a Google search asking if it will work.
     
  18. Ann P macrumors 68020

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    #19
    Had iPhone 4s with a bad ESN (due to outstanding balance) on AT&T, but I was able to factory unlock it. Gave it to my brother and he's been using it on T-Mobile. Why is this? Was it because I unlocked it before it was blacklisted? Not complaining of course, just curious.
     
  19. dictoresno macrumors 601

    dictoresno

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    #20
    when was this?
     
  20. Ann P macrumors 68020

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    #21
    Around December of last year.
     
  21. dictoresno macrumors 601

    dictoresno

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    #22
    as in 5 months ago or 2011? must have got it through before the blacklisting took effect.
     
  22. Applejuiced macrumors Westmere

    Applejuiced

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    #23
    Was that a verizon 4S or AT&T?
    The only way that would work with a verizon 4S is by using a gevey sim.
    Factory unlocking a verizon 4S would only allow it to use gsm sims outside the US.
     
  23. dictoresno macrumors 601

    dictoresno

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    #24
    sounds like shes confusing ESN with IMEI. i assumed she meant IMEI and that it was an at&t iphone 4s that wasnt technically "bad", but just had an outstanding balance on at&t but would work just fine on tmobile. IMEI blocking is for lost/stolen devices, not for accounts with outstanding balances. that would just keep the phone from being used on another at&t account.

    an outstanding balance on a verizon iphone with an ESN wouldnt be able to be used on verizon until the balance was paid, however wouldnt effect the SIM slot/IMEI.
     
  24. Ann P macrumors 68020

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    #25
    Ah, I see. Up until now, I believed esn and imei were essentially the same. This makes a lot more sense now. Thanks.
     

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