Before flashing,,please rename to update.zip (small letter)
move to sdcard
sdcard/here
Additional Information:
flash via updater
go to setting/about phone/update
push 3dots on right corner then reboot to recovery,choice english language and install update.zip to system
here you go...
optional u can swipe to modification system and root using supersu latest,,
or migrate from any rom (Cu or Ct or CM)