How can I apply the following mods:
-Double tap to wake.
-Timeshift video
-Smart Call Handling
I have z1 non rooted locked bootloader on Android 4.4.2
you need unlocked bootloader
you need root
you need unlocked bootloader you need root
Google that and follow the instructions, the instructions are all over this forum, I will not copy and paste them here.
Just look in the original development section for unlocking your boot and the mod/theme section for the others.
Then you find the threads for those mods and follow the instructions in the Opening Post on how to install them...