ok guys..
after i sent official complain email to asus on 16/03/2013 regarding my lappy, yesterday 1 received call & email from asus taiwan, saying that they will replace my laptop with new unit, & i can collect it at asus lowyat by today..
Dear Mr.R,

Good Day and thank you for contacting Asus Service Center.

Regarding of your Notebook RMA(MYA13****1 ) issue,cause of our Service Center got the part shortage issue,so they will help to process for replacement,please send your purchase invoice to them(Lowyat 4th floor) or my.asuscall@gmail.com.
Normally,you can access to internet after set these setting.
If you still have any inquiry, please don't hesitate to contact with us again.
Technical Support department for further assistance can be reached by the following methods:
ASUS Troubleshooting: http://support.asus.com/troubleshooting/troubleshooting.aspx
ASUS Member: http://member.asus.com/login.aspx
Thanks for using Asus service.
Sincerely,
Eric
my.asuscall@gmail.com
Asus Service Center
ASUSTek Computer Inc
Hotline: +603-2053-5077

p/s: for all of u guys which having problem with any asus device that they said needs to wait for parts replacement more than 1 week, i suggest u all to send email directly to asus..