We have already seen that PwnageTool is Now available to jailbreka ios 4.1 os various idevice such as iphone 4, iphone 3GS, iphone 3G, ipad, ipod touch and apple TV, we have already posted About How to Jailbreak ios 4.1 on iphone 4, 3GS, 3G With PwnageTool 4.1/4.2
Now it is time to unlock iPhone 3GS 4.1 firmware. Follow the steps given below to unlock iPhone 3GS 4.1 firmware.
How to Unlock iPhone 3GS 4.1 Firmware:
Step 1 : First Jailbreak iphone 3GS with ios 4.1 follow guide from here
step 2 : Now Launch Cydia.
step 3 : Choose the ” Manage ” tab at the bottom.
Step 4 : Choose the ” Sources ” option.
Step 5 : Tap the ” Edit ” button and then on the ” Add ” button
Step 6 : Then add the source. http://repo666.ultrasn0w.com
step 7 : Now Search for ” ultrasn0w 1.1-1 ” in Cydia.
step 8 : Install the Ultrasn0w 1.1-1 app to unlock iPhone 3GS 4.1 firmware.
Step 9 : Now Restart your iphone, you Will see your iphone 3GS is now Unlocked and now you can use any sim with your iphone.


Great and easy instructions to follow but once I finished the jailbreak and unlock, which went fine, my iPhone 3GS recognized the new SIM card and carrier for ONLY a couple SECONDS before SEARCHING and searching for the carrier and stating “unable to load network list” and never recognizing the carrier. Any remedies for this?
Thanks!
I think u have the latest firmware IOS4 05.14.02! ultrasnow cannot unlock it yet… will have to wait till the end of november to unlock! keep in touch!
I was able to Jailbreak
but after that the phone was not able to get unlocked with the help of cydia
IT IS STILL UNABLE TO SEARCH ANY NETWORK
Please HELP !
hi i have a iphone 3gs ios 4.1 5.14.02 can this post be used to unlock this phone..
thanks
Upgrade / Unlock / Jailbreak : iPhone 2G / 3G / 3GS / iPhone 4
iPod Touch / iPad.(on any bootloader, baseband and firmware)
gevey sims for Iphone 4 are available.Freel paid apps
Any hardware repair solutions related to iphone will be done at low rates.
Contact me Arjun- 9029537116