I found the answer on disasembling LID, so sharing it with the rest of the community. ASUS N550 is similar to the new ASUS series notebooks, all glue gorilla glass to the LID. There is tutorial on ASUS Zen using fan.
http://www.ifixit.com/Teardown/Asus+Zenbook+UX32VD+Teardown/10120/3