How to Update & Unlock iPhone 3gS and iPhone 4 on iOS 4.3.3

This videos is on: How to Update your iPhone 3gS or iPhone 4 to a Custom iOS 4.3.3 . IF you are an Unlocker and rely on Ultrasn0w to use UnOfficial Sim card in your iPhone then this video is for you. Simply Install 'Ultrasn0w' from Cydia after you are done with uploading a Custom 4.3.3 on your device.

Download Redsn0w for WINDOWS http://www.megaupload.com/?d=TDJ6MTVH
Download Redsn0w fro MAC : http://www.megaupload.com/?d=873QZ18N

Download Official/Stock iOS 4.3.3 for iPhone 3gS: http://www.megaupload.com/?d=6ISIZ312
Download Official/Stock iOS 4.3.3 for iPhone 4: http://www.megaupload.com/?d=L9XKPSNU

Download Custom iOS 4.3.3 for iPhone 3gS: http://www.megaupload.com/?d=RC0XZBVK
Download Custom iOS 4.3.3 for iPhone 4: http://www.megaupload.com/?d=IM97Q1OT

IMPORTANT: (ONLY iPhone 4 Users): This video is for unlockers. The custom firmware used here are 'hacktivated' and you will NOT get a service if you use these Custom Firmwares with official sim cards on your iPhone 4. You will have to use Pwnagetool (MAC) or Snowbreeze (WINDOWS) to make your own custom 4.3.3 firmware and make sure to Uncheck 'Activate iPhone' option when you make a custom firmware using pwnagetool or snowbreeze. Then upload that on your iPhone. You will get your reception back on iPhone 4.

PLEASE READ: If you are having troubles updating your iDevice (Error 3194) to 4.3.3 firmware then delete Cydia Server in your 'hosts' file located at this directory in your WINDOWS Computer: C:\Windows\System32\drivers\etc . Cydia server will be the last line like this 74.208.10.249 gs.apple.com
And on MAC simply right click on Finder. Go to 'go to folder'. Here type "/etc/" Here look for 'hosts'. Drag it to your desktop. Open it and delete Cydia Server which will be the last line like this 74.208.10.249 gs.apple.com. Then put 'hosts' file back where it was. Then reboot your Mac. Now update to iOS 4.3.3

[Here is a complete list of errors while Upgrading/Downgrading an iPhone/iPod Touch or iPad Firmware http://bit.ly/hUCZHi]

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• 4.3.3
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[niczking13]

New links please

[djtriniboyA90]

is there a way to do this for an iphone 3g?

[abbasfazal100]

emacc I am on ios 4.1 but when i update my iphone it says this iphone esible that could not me updated what do i do?

plz ans fast

[abbasfazal100]

@coolbot123 jailbreak it will be fine

[diamonderic123]

The C:\Windows\System32\drivers\et­c problem i can't fix it still doesn't work. please help. thanks

[gersonmets]

Hey i am still running IOS 4.0, if i do this update will my unlock still work? just follow the same steps right?

[smyli24]

fix 3194 error.

Drag it to your desktop. Open it and COPY Cydia Server which will be the last line like this... COPY THIS: 74.208.10.249 gs.apple.com in last line, restart itunes end restore.

After you finish delete 74.208.10.249 gs.apple.com

[prithvinat]

getting an error 1015.. plz help

[bangalula]

same problem 3194 error eve though i deleted all the things in host

[mattgarca7]

@coolbot123 @hanoverhousedental same thing with mine! im running 4.1 trying to get 4.3.3 but i keep getting the 3194 error, and i even deleted the thing in hosts and it didnt work, did he reply to anyone else who had this same problem?