Leaked OS: 10.3.0.1052 for all Blackberry 10 devices

Here you go! The most exciting BlackBerry OS of all time popped up on web! It’s not an official release so you may experience some unusual behavior overall. We Highly Recommend NOT To install this OS unless you know its dealings (don’t do this if you haven’t understood the previous line). This OS isn’t certified for public & its better to back up your data before screwing your phone. 

Details & links to leaked OS >>

Here are the steps to install a leaked OS on your BlackBerry 10 device:

• Switch off your BlackBerry 10 device
• Run the AutoLoader File
• Connect your BlackBerry 10 Device to your PC via USB
• Quickly Turn on your BlackBerry 10 device
• The AutoLoader will detect your device and starts the installation
• Please hold till the AutoLoader reaches to 100% and CLOSES automatically
• Disconnect your BlackBerry 10 device and wait till it starts again
• Security wipe before start using/restoring your data

Source: CrackBerry