Bootloader Unlock Tool

Hi Asus,
  I am one of ur many customers.I Like ur brand for a long time.I am now using Asus ZenFone Max(Model-Asus_Z010D).But recently i have some prb with this phone.I am a root user in my previous phone model.But in this Model of Company i try many  process for rooting but i failed to get rooting in this phone.And I tried to find some Boot unlocker tool for this model and i find one app called "UNLOCK DEVICE TOOL" but the app was not properly getting installed in my phone but i see a YouTube video where A same model Asus user was installed it and use it but he has a 2015 model.So i humbly requested to u plz release a official App for Boot unlocking tool on Asus ZenFone Max(Model-Asus_Z010D) or just Remove the barrier to install "UNLOCK DEVICE TOOL" apk on my phone.
                                    Thnk u ..I hope u will fix this fast.

eu tenho um zenfone 3 max zc553kl x00dda, e tambem queria muito ter root no meu aparelho. eu comprei para mim e ate agora não tive liberdade, ainda não pude falar que o aparelho é meu!