Deciding to fix your iPhone yourself is a tough decision. You know that iPhone repair in Malaysia or anywhere is not easy, as people think. That is why; people never try to mess it up, as it will always end up with a useless effort and ultimately amplify the problem. What you need is to talk experts that are 24/7 available for assistance and those having a variety of comprehensive knowledge regarding this device!
There are some issues externally, like in the software that one can handle own. For the internal, hardware problems, it requires not only massive knowledge, but practice and different tools to tackle the problem. So, most of the surveys and researches recommend that if your iPhone is encountering a problem, just visit the nearest iPhone center or best dealer alternative.