how to unlock iphone3gs
 

Hi, guyz please I need someone to help me or guide me my bro sends iphone3gs version 4.3.1 modem firmware 05.16.02 it can't accept my sim card it keep telling me no service and I have try another sim same problem am facing please someone help...thanks

use jailbroken quick by philippines

u should be searching forum first and if u have problem we can help u
just SEARCH 1ST

jailbreak / unlock / firmware
 

now what software use:

www.jailbreak-me.info

Download firmware:

www.felixbruns.de/iPod/firmware

What version should I download in there??

bro you need just 3gs 4.3.1 ipsw file ,redsn0w redsn0w_win_0.9.6rc16.
download 3gs ipsw from here.Download iOS 4.3.1 Firmware for iPhone, iPad, iPod Touch [IPSW] | iPhoneHeat
redsn0w_win_0.9.6rc16 download from here
Hotfile.com: One click file hosting: redsn0w_win_0.9.6rc16.zip

• Unlock 3G & 3GS BASEBAND 06.15.00 WITHOUT WIFI...(GUIDE)
  HI GUYS FOLLOW THIS INSTRUCTION....
  
  1. download iphone folder from here
  
  a:http://iphonefolders.com/1.0.32/iPhoneFolders.msi
  
  b: unlock without WIFI.zip
  
  2. now go through explorer and create a folder named ""AutoInstall"" in your iphone..
  
  "iPhone\private\var\root\Media\Cydia\
  
  and put these 2 files in your "AutoInstall"
  
  3. now restart 2 times....
  
  done.....