If are an Apple developer, then you will be happy to know that now you can test a new beta version of iOS 6.1. Apple has released iOS 6.1 Beta 4 for developers. This beta version of iOS 6.1 is not recommended for all iOS device users. After installing iOS 6.1 beta 4 on your iOS device, you will not be able to downgrade back your iOS device to the previous firmware. iOS 6.1 beta 4 has fixed various bugs available in the 3rd beta version of iOS 6.1. It supports iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, iPod touch 5G, iPod touch 4G, iPad 4, iPad 2, iPad mini and new iPad. The 4th beta version of iOS 6.1 comes as build 10B5126b.
iOS 6.1 beta 4 is available in iOS Dev Center. iOS 6 beta 3 was released on 3rd of December. If you have installed iOS 6.1 beta 3 on your iPhone, then you can choose either mobile or cellular data for iTunes. You can also use “Reset Advertising Identifier” button. It allows users to use “Voice Dial Only” feature on their iPhone. iOS 6.1 beta 2 was released on 12th of November. If you have installed iOS 6.1 beta 2 on your iPhone, you must have seen the improved welcome screen of Passbook app on your iPhone. You can also book movie tickets using Siri. iOS 6.1 beta 1 was released on 1st of November. Now you can install iOS 6.1 Beta 4 on your iPhone, iPod touch and iPad. If you want to install iOS 6.1 beta 4 on your iPhone, then you have to register in Apple developer account. It will cost you $99 per year.
If you are a jailbreak lover, then don’t install iOS 6.1 beta 4 on your iOS device. Currently, iOS 6.1 beta 4 is not jailbreakable. Developers can download iOS 6.1 beta 4 from iOS Dev Center. They can also download it via over-the-air update. It is recommended that you must wait until the release of iOS 6.1.