Ultrasn0w Tips for the iPhone 3G and 3GS Unlocking

by Eric Pena on July 21, 2009

Ultrasn0w Unlock

The iPhone Dev-Team thinks that it has finally fixed the vast majority of problems in unlocking the iPhone 3G and 3GS with Ultrasn0w version 0.9 that they posted tips for those still having some problems.

Ultratips from the Dev-Team:

  • Unusual battery depletion is almost always caused by people choosing to “Restore from backup” instead of “Setup as new iPhone” when iTunes asks you.  This isn’t caused by either the jailbreak or the unlock, but it’s a common 3.0 snafu. The fix is to just re-run the official 3.0 restore and choose “Setup as new” this time.  Your music and apps and all that will still be synced, but you’ll get rid of any conflicting wifi, bluetooth, or carrier settings.  Then just re-run redsn0w and install ultrasn0w.
  • Remember, ultrasn0w works with hacktivated phones too, but don’t outsmart redsn0w into thinking you don’t need hacktivation! If you don’t plan on using an official sim, don’t activate via iTunes with such a sim.  Just keep your unofficial sim at all times and let redsn0w and ultrasn0w handle hacktivation :)
  • T-Mobile in the USA doesn’t use the 3G frequencies that the iPhones support, so turn off 3G in Settings->General->Network.  (Some T-Mobile territories gracefully hand down to Edge mode, but most do not).
  • Certain unofficial plans have limitations on whether you can make calls and use data at the same time. That’s not unlock-related.
  • Some people have installed previous versions of ultrasn0w using non-standard techniques. While the ultrasn0w 0.9 update should have removed all previous versions of ultrasn0w, these users may have outsmarted our removal.  So make sure you don’t still see /usr/bin/ultrasn0w present if you’re at ultrasn0w 0.9 (which doesn’t have such a binary anymore).
  • If you don’t need or plan to update to ultrasn0w 0.9 from a previous version, you can avoid having that red badge over Cydia by removing repo666 as a Cydia source.  Don’t worry, you can always add it back later :)  If you follow us on twitter you’ll be advised of any new updates anyway.

If you are still having issues, you can check out the Dev-Team Blog and post your problems.

Related Posts with Thumbnails

{ 5 comments… read them below or add one }

1 cebuadventure July 27, 2009 at 11:01 pm

world of technology
great post

2 Jerry August 14, 2009 at 12:57 pm

Hey, I will be needing this in case I win one of the 50 iPhones on the axeonphone website. thanks for this post :)

3 linglinggoh January 23, 2010 at 8:31 am

Hi, i just encounter a big amount charges for the idata for my 1st phone bill. Finally found out the iphone disabled EDGE cannot work. However, with the instruction and advise given on this web, i am successfully to disabled the idata.

Problem now: My iphone now already disabled the idata but i noticed that there is a small data loading even turn off the edge and did not on wifi when the iphone is charging for whole night. So what is the problem and how to solve it?

Thank you

4 ThuanTM February 21, 2011 at 2:45 am

Oh thanks, i appriciate that!

5 LienDTK February 21, 2011 at 7:48 am

Oh thanks, i appriciate that!

Leave a Comment

Previous post:

Next post: