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CLICK HERE to download 4.3.1 IPSW files and other earlier versions. Select it from the dropdown menu.
You can also try locating it locally on your computer. For Mac, go to: Users>HOME FOLDER>Library>iTunes>iPhone Software Updates>
For Windows, go to: C>Documents and Settings>HOME FOLDER>Application Data>Apple Computer>iTunes>iPhone Software Updates>
NOTE (For PC users): Application Data is a hidden folder, make sure to set hidden files visible from Control Panel>Folder Options>View>
WARNING: The following basebands are still UNLOCKABLE. DO NOT UPDATE to iOS 4.3.1 (or higher) if you need the unlock:
05.14.02 - iPhone 3G & 3GS, iOS 4.1
05.15.04 - iPhone 3G & 3GS, iOS 4.2.1
05.16.00 - iPhone 3GS, iOS 4.3 and 4.3.1
05.16.02 - iPhone 3GS, iOS 4.3.2
03.10.01 - iPhone 4, iOS 4.2.1
04.10.01 - iPhone 4, iOS 4.3 and 4.3.1
Update iTunes to 10.2.1 for best results.
Procedure:
Plug your iDevice to your computer
Turn OFF your iDeviceTo turn OFF, press and hold the POWER button for about 3 to 5 seconds then slide the red bar on top of your iDevice's screen saying "slide to power off"
Open/Run redsn0w and click BrowseNOTE: The screenshots you'll see here are taken from a Mac and earlier version of redsn0w, however, the process is completely the same if you'll be working on a PC (Windows) or a newer version of redsn0w.
Locate the official IPSW.Use the following:4.3.2 IPSW if you have iOS 4.3.2 on your iDevice4.3.1 IPSW if you have iOS 4.3.1 on your iDevice4.2.1 IPSW if you have iOS 4.2.1 on your iDevice
redsn0w will process and identify the IPSW
Click Next and let redsn0w do what it have to do
Check on Install Cydia and click NextClick image for larger view.
Turn OFF your iDevice (just a reminder from step 2). Before you click Next, read steps 9 to 11 first in preparation for putting your iDevice to DFU mode
Press and hold the POWER button for three (3) seconds
Continue holding down the POWER button then press and hold the HOME button as well. Hold them both for another ten (10) seconds
Release the POWER button but keep holding the HOME button
You can release the HOME button once you see redsn0w in the process of jailbreaking your iDevice
Click Finish and you're done on the computer, and as it says, the rest takes place on your iDevice.
All you need to do now is wait and keep it plugged in your computer. DO NOT INTERRUPT!
Once complete, you will find Cydia on the 2nd page of your iDevice's homescreen and it should operate as usual.
If you have an iPhone and you're able to preserve your baseband, you can CLICK HERE to UNLOCK.
IPSW iPhone Software
IPSW Industrial Problem Solving Workshop (Fields Institute, Canada)
IPSW International Passive Sampling Workshop (environmental monitoring conference)
IPSW Interruption Processor Status Word (computer technology)
PSW
***** IPSW iPhone Software Software *** IPSW Interruption Processor Status Word *** IPSW Interrupt Program Status Word ** IPSW Industrial Problem Solving Workshop * IPSW International Passive Sampling Workshop * IPSW International Probe Storage Workshop * IPSW Index Picasso Sites on the Wor * IPSW Image Processing and Scanning of Wood * IPSW iPhone Software file File extensions * IPSW Ipswich Bancshares, Inc. Nasdaq symbols Read more at
There is no such firmware version as 5.0, the latest version of firmware is 4.3.3,anyway if you want to upgrade your iphone, you need itunes software installed on your computer and a IPSW file for firmware.
firmware download : IPSW (prefer what firmware you wish)
Here is the procedure : (Be sure to back up your data first because all files will be erase.)
1. Plug your iphone to the computer,some drivers will be install and wait until your phone recognized by your computer.
2. hold "shift" key then click restore, a firmware will be ask so locate the firmware file you download then tick ok. it will automatically do the process so just wait until it's done.
firstly you need to go to General in iphone setting - reset and erase all content and setting. *do note that this will remove all application and softwares installed. Including sync mp3's.
Another way is to backup your phone first before formatting using itunes.
then restore to the original ipsw located on this website. http://www.iclarified.com/entry/index.php?enid=750
once iphone is connected to itunes, you need to press Shift key on the PC keyboard and a box will appear for you to locate your IPSW file for restoration. But remember to download the IPSW from the website above.
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