It' very rare that you can find a solution n this forum.
Your best bet will be trying to go to you Asus Service Center, if they refuse or don't know how to fix it,
Contact / Give your Asus (Insert Country Name) a visit and speak with their Service Manager, ask him which service center willing to accept or know how to repair it.
As far as i know, especially in Indonesia, for Asus Accessories, they only have 3 months warranty.
After my experience with the Kunai 3, I only expect the life expectancy for their accessories for 3 months, if you get more than that, that's good, otherwise, time for a new one and moving on.