Last Saturday, I make a decision to DIY my power window switch. Hmm... but I forgot to take a photo step by step while I am doing it. However, everything is going great. Nothing is broken. Warranty is still intact (carefully remove the warranty sticker).

Actually there is a black residue from a electrical spark in the switch (contact point). Just remove the residue and everyhing is come back to normal again. But this time I don't know how long it can last. Maybe after this I want to buy an old iswara switch as proposed by the forumner. As they claimed that the previous model is more robust than the lmst model.