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  • Warning: ultrasn0w May Break GPS on Baseband 6.15.00


    The Dev-Team is warning about a potential issue with ultrasn0w for iOS 4.2.1 on iPhones with the 06.15.00 baseband. An increasing number of users with that version of the baseband software are reportedly losing GPS functionality when they unlock their device. The blog post says they are looking for the root cause but haven't found it yet, and notes that it's not a problem for all or even most users with that baseband. Still, to be on the safe side, they're suggesting people should just not expect GPS to work if they want to unlock iPhones with the 06.15.00 baseband using ultrasn0w:

    Update #5: Unlockers have been reporting mixed results about GPS functionality at 06.15.00. Until we can track down what differentiates those who retain GPS vs. those who lose it, be conservative and assume you’ll lose GPS at 06.15.00. As we work on finding the cause (and possibly a fix), please report your personal findings in our comments section. (Update: early indications are that while 06.15.00 is capable of GPS, it will require some further hacks. But please still be conservative and assume you will lose GPS at 06.15, in case the hacks don’t work).
    Source: Dev-Team Blog
    This article was originally published in forum thread: Warning: ultrasn0w May Break GPS on Baseband 6.15.00 started by Paul Daniel Ash View original post
    Comments 175 Comments
    1. i.Annie's Avatar
      i.Annie -
      The next baseband that would heal the GPS would have to be one that exceeds 6.15.00 since you can't downgrade and can only upgrade basebands. The latest for 3GS is 5.16.xx, might be a while (if ever) that it exceeds 6.15.00. 3G is already done for at 4.2.1 so there's no chance for iPhone 3G users. But maybe for 3GS if the fw updates don't stop any time soon like it did for iPhone 3G.
    1. Simon's Avatar
      Simon -
      Something tells me Apple is not going to come to the rescue on this either.
    1. i.Annie's Avatar
      i.Annie -
      Quote Originally Posted by Simon View Post
      Something tells me Apple is not going to come to the rescue on this either.
      No sir, i believe Apple will not.
    1. Sliyk22's Avatar
      Sliyk22 -
      Quote Originally Posted by i.Annie View Post
      No sir, i believe Apple will not.
      Haha that's true
      I wonder if this is just a software problem why can't it be fixed by a software solution
    1. i.Annie's Avatar
      i.Annie -
      Well it's either downgrade the baseband or find the issue with why GPS broke. Either way it isnt an easy task as we have seen that no fix has come about yet. Everything including unlocks have come to a standstill... Might be some time before something new comes out. But hopefully that new thing if/when it comes out will be spectacular and permanent
    1. cheme75's Avatar
      cheme75 -
      I'd go so far as to suspect apple numbered the iPad BB at 06.15 specifically to ensure it stayed on that product and it is pretty darn obvious they know of the fluke that allowed it to be used on the 3G/3GS. Realistically 3GS support will end in the not too distant future due to limitations of the hardware, meanwhile apple has more than enough wiggle room for BB numbering - ie: they can go as far as 06.14. If they are at 05.16 now then they have at least 98 more versions, hundreds more if the third set of digits is considered. No sense waiting for an apple BB rescue. Only hope is if someone on the dev team has both a conscience and is extremely lucky and brilliant enough to develop either an unlockable BB clone in the original series or figures out how to patch in a previously unlockable BB. Alternatively they should also figure out how to reinsert the original BB for anyone who wishes to revert back to their previously locked status so they can get their gps back.
    1. Schmeerkees's Avatar
      Schmeerkees -
      Quote Originally Posted by Sliyk22 View Post
      Any chance that updating to 4.3 may fix this?
      I miss my gps
      JB, downloaded RoqyBT and connected to external GPS is what I did
    1. fahimsubhanchowdhury's Avatar
      fahimsubhanchowdhury -
      can any one tell me whether it is possible to unlock ios 4.3.3 on baseband 6.15.00 with blacksn0w ?

      if so, would that make me able to use my gps?

      thanks

      Fahim
    1. confucious's Avatar
      confucious -
      No.
    1. i.Annie's Avatar
      i.Annie -
      You'd use ultrasn0w to unlock and no your gps won't come back. It is broken as long as the baseband has been upgraded to 6.15.00
    1. Sliyk22's Avatar
      Sliyk22 -
      Could it be fixed if a new baseband came out?
    1. Simon's Avatar
      Simon -
      If a baseband with a higher version was released by Apple that would most likely fix it. But it would also relock the phone.
    1. Sliyk22's Avatar
      Sliyk22 -
      Quote Originally Posted by Simon View Post
      If a baseband with a higher version was released by Apple that would most likely fix it. But it would also relock the phone.
      Would the new ios5 come with a new baseband that would fixit potentially?
    1. confucious's Avatar
      confucious -
      The BB in the latest beta is 04.11.08 and it's unlikely to change much so I wouldnt hold your breath.
    1. Simon's Avatar
      Simon -
      That's the iPhone 4 baseband. Although I think the baseband for 3GS is still in the 15's so what you said is still correct.