I have been using this Asus ZenFone ZE551ML and it was all going smooth until one day it went into coma and just vibrates twice every time someone tries to switch it on and only vibrations occurs no response form the screen and no led indicator during charging. It had died suddenly and can't figure out what is the problem with this set. I googled and got some information that Asus ZenFone faces this problem frequently especially this model but my phone is yet not responding and not getting switched on.
Suggest me any way to switch it on or get it repaired if needed.
Thanks