i have samsung galaxy s4 and i want to update it to android lollipop but it is not get the update so far.i live in pakistan.pls tell me how i update to lollipop
It's usually sent to you by your carrier, so unless you want to find a 5.1 Pakistani ROM and flash it yourself (see our guide - [Samsung] How to flash Stock ROM via ODIN) you'll just have to wait until your phone gets it over the air. (You'll get a notification that there's an update available and you can choose to accept or reject it.)