Have a carried locked iPhone4 and plan to unlock it?
iphone-dev team has released updated version of ultrasn0w that does the trick.
Version 1.0-1 of ultrasn0w works for:
- iPhone4 baseband 01.59
- 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04
(If ultrasn0w doesn’t show when you search Cydia, add the repo: repo666.ultrasn0w.com).