This is from. 314
Send from my Sony Xperia Z2
...thanks....but with stock kernel too ?
How you think that may use other kernel, if ours bootloader is locked?
laofan, You don't need unlocked bootloader to flash stock firmware.
Just follow step obove and all will be fine.
Yes of course. :)
You just have to know the number by region (Customization version) of your stock software.
1. Download right FTF firmware for your model device, that software have way to root, like 5.1.1.
2. Install drivers for device and flashmod, after that Flash firmware from Flashtool.
3. After that, root Android version and install recovery ...