I have an Lg classic which totally stopped powering on. I opened it up to see what I can fix, and then (while still open), I put the battery in, and It worked fine. I then screwed it closed again, and it stopped working. Any idea what could be preventing it from powering on, and if there is a simple fix to look for on the circuit board?

Battery not hitting the metal in the right position.

Thanks. Phone is gone though... I ended up just transferring whatever info I could get... Good to know though because every once in a while, a phone like that turns up.