Just bring the guitar down to guitar connection to get kai ching to do it up for you lah...
You see, even pooo tried to DIY and face problems.
This is what I am talking about for a long while. If your profession is not fixing guitars, then let someone who is to do it for you, and charge it fairly of course. They deserve it cause they know how to do it right and you don't really know fully.
If the whole world is so easy as unscrew the cover and touch some soldder and settled. Then we are no longer on earth.
STORY (I have being doing computer for more than a decade, and example: I get funny customer who ask me to check if his notebook ram can be upgraded, so I unscrew the ram compartment to check (in front of him) and tell him that there is a free ram slot to plug in a DDR module. So I quoted him, and then he said he will consider. After which I did not hear from him again, till 1/2yr later he came to me with spyware infection. Then I noticed that he had bought the ram himself and installed it in himself. So you tell me, as a professional, will I feel insulted???) This is why you get poor customer service in Singapore, due largely to lame uncool 'unethical' customers. This I think is the ugly side of signaporean.
Sorry if I sounded a bit harsh, but if you think you can settle everything yourself perfectly, then no one will need a job anymore. I think that that is a very lame mentality.