Hi guys, just an update. Sadly, my instrument cluster was recommended by the dealer to be replaced with a new one. After my 2015 software update it didn't do any good. It became like that due to heat. It's LCD so the liquid got screwed up. The heat is cause I live in Malaysia which temperature hits 40 degree Celsius and yes that shouldn't be an excuse but when I park my car under the covered area, the heat still does some damages. I do not have an indoor garage sadly.
Prior to that I've tried knocking, good smack, new battery, trickle charging, even disected the combi/instrument cluster itself for loose/faulty wiring.
I guess I'm just unlucky, so try to park your car indoors if the weather gets too hot and humid.
Cheers!
P/s; if my dealer is wrong and you guys might have other options it'll be good know! Any advise would be appreciated!