Cupertino based technology giant Apple is well known for providing quality products like iPhone, iPod touch, iPad and variants of Macbooks. Apple has taken a big leap in mobile technology field ever since it has released iPhone. All the iPhone runs on a Linux based operating system made by Apple called iOS firmware or ipsw files, as the extension of this firmware is .ipsw.
Apple has been known to fight with iPhone hackers or developers to stop them infiltrating their firmware. In simple terms, hackers are known to provide full root access which helps people to add new tweaks, change the settings, install application from Cydia store and much more. Apple updates its firmware time to time to curb such practice. Once you update your device to latest firmware version from Apple, you can never downgrade it unless and until you've saved SHSH blobs- signed firmware by Apple.
You need to Google to find out the direct link to download IPSW firmware to your computer. This, itself is a time consuming process. openIPSW lets you download IPSW firmware directly from Apple server without any intervention or need of links. Moreover you can pause of resume the download at any point of time. The shiny side of this tool is that it also gives you the information on available jailbreak tools and unlock tools for that firmware. iTunes do not let you download old firmware as it checks Apple server to see what's the latest firmware available for the particular iOS device.
openIPSW provides following support
ipsw download from Apple server
Pause download
Resume download
Available Jailbreak tool and download
Available Unlock tool
Baseband version
openIPSW is an open source program for Windows users only. There's an alternative tool available for Mac users which is known as 'ipswDownloader'. It is available for both Windows and Mac users.
However, we recommend you to use openIPSW as it is much easier and efficient software for Windows users. ipswDownloader is not an open source program. The beauty of ipswDownloader is that it also lets you download some of the most famous iPhone software like iPhone Explorer. You can also visit the author website for various other projects and tools related to Mac and iPhone.
openIPSW is a small project which was previously a copy of ipswDownloader strictly made for Windows users, but later it evolved as an individual project. You can also follow them on twitter to get the latest updates.
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