Why can't I seem to upgrade Android?

[AC Question]

upgrading android

im using Asus zenfone 5 T00J with kitkat that have been rooted.. since now lolipop has been release, i cant upgrade it in normal way.. can anybody teach me???

 

[the tall guy]

Re: upgrading android

You can't update it via OTA as you rooted your phone. Try flashing a ROM.