iOS 5.1 Beta 1 is Available to Download

in iPhone Download, iPhone Firmware by

iOS 5.1

Apple just releases iOS 5.1 beta 1 to developers. If you are an iOS paid developer, you can simply sign-in to iOS Dev Center to download iOS 5.1 beta 1 release.

iOS 5.1 beta 1

For non-developer with UDID registered, you can find iOS 5.1 beta 1 IPSW files from Google search.
Open and paste the IPSW filename of your device using these reference as keyword on Google search. Or, you can simply click on the link below to search the download links of iOS 5.1 beta 1 on Google straight away.
If you found .DMG file rather than IPSW file, you will need to convert DMG to IPSW (easily) first before restoring the firmware.

Details of iOS 5.1 beta 1
Version: iOS 5.1 beta 1
Build: 9B5117b
Release date: November 28, 2011
Compatible devices:

  • iPhone 4 (GSM)
  • iPhone 4 (CDMA)
  • iPhone 3GS
  • iPad (iPad Wi-Fi and iPad Wi-Fi + 3G)
  • iPad 2 Wi-Fi
  • iPad 2 Wi-Fi + 3G (CDMA)
  • iPad 2 Wi-Fi + 3G (GSM)
  • iPod touch (4th generation)
  • iPod touch (3rd generation)

Features updates, bugfix, changelogs, and release notes of iOS 5.1 beta 1

iOS 5.1 beta 1 contains improvements and other bug fixes including:

iOS SDK 5.1 provides support for developing iOS applications and includes the complete set of Xcode tools, compilers, and frameworks for creating applications for iOS and Mac OS X. These tools include the Xcode IDE and the Instruments analysis tool among many others.

With this software you can develop applications that run on iPhone, iPad, or iPod touch running iOS 5.1. You can also test your applications using the included iOS Simulator, which supports iOS 5.1. There are two Xcode iOS SDK 5.1 images, one for installing on a Macintosh computer running Mac OS X 10.6.7 (Snow Leopard) or later, the other for installing on a Macintosh computer running Mac OS X 10.7 (Lion).

iOS 5.1 beta 1 introduces a new way for developers to specify files that should remain on device, even in low storage situations.

There will be alot of sites that will share the iOS 5.1 beta 1 IPSW files. Other sources where you can download iOS 5.1 beta 1 is torrent network. You can find .torrent files from or then look for iOS 5.1 beta 1. A torrent software client such as bittorrent or utorrent is required to download iOS 5 from torrent network.

Febryan Paudi (940 Posts)

Febryan Paudi is Apple enthusiast. Falling in love with Apple-tech since 2008, loves Blogging since high-school. Google+

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