Originally Posted by __MadeR__ View Post

Do I have to enter fastboot mode and reflash boot.img from newest nightly or is there a different faster way?

Sent from my C6603 using XDA Free mobile app
U must reflash boot.img via fastboot.
Current devices: Sony Xperia Z on stock KK 4.4.2 UB
Windows devices that I used: HTC Touch Diamond, HTC 8S
Android devices that I used: HTC Hero, HTC Tattoo, HTC Buzz/Wildfire, SE Xperia X10 Mini Pro, SE Xperia X10i,
Sony Xperia P, SE Xperia Mini Pro, Motorola Atrix, HTC Sensation, Sony Xperia S, HTC Desire S, Sony Xperia Z1