This message is for all those who love tinkering with their phone's software right from day 1. While it had previously been reported, Sony Mobile themselves confirmed on their official website that there is a major bug with the bootloader unlocking process for their new flagship Xperia Z1. Sony is one of the few companies which allow their customers to unlock the bootloader of their device, by following the steps listed down on their own website. However, the company on their website has put out a warning to all Xperia Z1 enthusiasts to refrain from unlocking the bootloader as it woud break your camera functionality. At the moment, there is no fix (for those unlucky and adventurous few who went ahead with the bootloader unlock).