Carrier What do I do with a "Master Subsidy Lock" number?

Discussion in 'iPhone' started by kirsch, Sep 15, 2013.

  1. kirsch macrumors newbie

    Sep 15, 2013
    I have terrible coverage with Sprint with both our handsets. The iPhone 4S is now out of contract so I can finally drop them without paying ransom *cough* Early Termination Fee (ETF).

    I asked Sprint to unlock it so I can take it with me to another carrier. It's fully paid for after all, I own it, right?

    So they gave me a Master Subsidy Lock (MSL) code. Problem is that nobody at AT&T nor T-Mobile knows what to do with that. I can't find any information online. What do I do with this code? How do I apply it? Are they just pulling my leg?

    Any information is appreciated. If this works, then I'll pay the ETF for the iPhone 5 as well.
  2. iSaxon macrumors 6502a


    Jun 19, 2010
    Pittsburgh, PA
    I don't think MSL codes can unlock iPhones

  3. brand macrumors 601


    Oct 3, 2006
    Since you got the code from Sprint why wouldn't you have just asked them when they gave you the code or called them back and asked since they are the ones that gave you the code.
  4. jeffm5690 macrumors regular

    Sep 9, 2010
    MSL? I don't believe that is iPhone compatible... Call Sprint.
  5. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    Where did they say you're supposed to stick the unlock code?
  6. jdecosta macrumors member

    Feb 16, 2012
    Sprint phone will not work on AT&T or Tmobile

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