How to ugrade asus zenfone 5 to android 4.4 KitKat

Who have android asus zenfone 5?
this awesome android device by default come with Android 4.3 aka Jelly Bean. But it is upgradeable to 4.4 aka KitKat.
and this time we are going to give you the tutorial about how to upgrade your asus zenfone 5 to kitkat in easy way.

first, you have to make sure there is no SuperSU application installed in your device, or you have to unroot your asus zenfone 5.
second, get into recovery mode and hit factory reset.
then, you have to download the FW ofcourse, you can download it here.
after the download finished, extract the file (just extract it once) till you see file like this UL_ASUS_T00F_WW_2_19_40_6-user.zip
next, connect your android device to PC and copy UL_ASUS_T00F_WW_2_19_40_6-user.zip to internal memory.
then, unplug usb cable. Then you should see update notification, wait till the process is done.

Congratulation, you have successfully upgrade your asus zenfone 5 to android 4.4 aka KitKat