For whom who have faced the No service after ultrasn0w 1.2 baseband 06.15.00 on iPhone 3GS and 01.59.00 baseband on iPhone 4 problem. simply follow the following steps to fix this problem:

First May Be Y0u Want T0 Read These P0sts:
Restore iPhone 3GS, 3G to iOS 4.2.1 / 4.1 on 06.15.00 Baseband After Using Ultrasn0w 1.2 [How to Guide]
Ultrasn0w 1.2 Unlocks iPhone 3GS, 3G on iOS 4.2.1 [How to Guide]
Downgrade 06.15.00 Baseband iPhone 3GS / 3G on iOS 4.2.1 After Ultrasn0w 1.2 Soon
– HOW TO: Fix iPhone 3GS / 3G Battery Drain Problem & Over Heat After Unlocking With Ultrasn0w 1.2
Unlock iPhone 3GS 4.1 / 4.2.1 with Ultrasn0w 1.2

N0w T0 Fix N0 Service

Step 1: Open Cydia on your iPhone 4 or 3GS

Step 2: Go to Manage->Sources

Step 3: Now tap on “Edit”, then tap on “Add”


Enter the following repo:
Now tap on “Add Source”

Step 4: Tap on Done.
Step 5: Tap on and install

Step 6: After the installation Go to 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.



Related, Imp0rtant, Recent P0sts;
How To Jailbreak 4.3.1 Untethered Sn0wbreeze 2.5 iPhone 4, 3GS / iPod Touch 4G, 3G / iPad (Windows)
How to Jailbreak iOS 4.3.1 Untethered iPhone / iPod Touch / iPad With PwnageTool 4.3 [Guide]
Download Redsn0w 0.9.6RC9 (Guide)


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