Some users faced a problem on iPhone 3gs and iPhone 4 after jailbreak iOS 4.3.1, the problem was No service after ultrasn0w 1.2 baseband 06.15.00 on iPhone 3GS and 01.59.00 baseband on iPhone 4. Now you can fix this problem by following the below steps.
Tags: iphone 3gs Ultrasn0w
Step 1: Open Cydia on your iPhone 4 or 3GS
Step 2: Go to Manage->Sources
Step 3: Now tap on “Editâ€, then tap on “Addâ€
Enter the following repo
http://cydia.pushfix.info
Now tap on “Add Sourceâ€
Step 4: Tap on Done.
Step 5: Tap on Pushfix.info and install
Step 6: After the installation Go to Pushfix.info again. Now scroll down and look for “Ultrasn0w fixer for 4.3.1†Tap on it. Install the package. It will ask you to reboot your device.
