I figured I would see if this is a known issue. First of, I am a 4 generation all jailbroke but this one. I did a search and I found a few others with similar issues but no real answers. I use Straight Talk. In the past jailbreaking was needed to be able to get full feathers like internet (no longer and issue) and MMS by installing TetherMe and changing the APN settings. My iPhone 4 and 4S both were set up this way. My iPhone 5 I just bought used was on 7.1.1 so I obviously cannot jailbreak. It is unlocked though. But outta the box with the APN profile from Unlockitz installed it seems to work fine even MMS other than no LTE/4G (which is another issue). But the GPS is an issue. iPhone was an unlocked 4, jailbroke using tetherMe to adjust my APN using straight talk. Then I upgrade to a 4S same thing, JB, TetherMe, ST. Now I bought a 5, it's unfortunately running 7.1.1 so no jailbreak, I am still using ST and everything works, even MMS with the Unlockitz profile installed. My GPS will start me close to where I am but the screen is always slightly tilted and it cannot follow/refresh my location. Can this be a straight talk related issue? Can not being jailbroke make anything different? The phone was used and the guy swears the GPS worked fine. He drives for a living and used it quite regularly. Thanks.