Today, I unlocked a bootloader of Xperia U by Flashtool. After that, I flashed a boot.img from CM 11 .zip. But there is a problem. I cannot insert ANY files in to phone, because when it starts, I see only SONY image and after that only black screen. And now, I cannost insert .zip file with CM 11. . There is CWM. Please, how to solve that problem? Now, I do not care which version of Android will be there... I need only call from the phone... Thank you very, very much!