Phone only boots when taken apart topic

So last night my phone died and would not turn on. I've taken it all apart as I am confident with working on the g2. It only turns on if I pry on the motherboard (as to lift it up a little) but the phone itself runs perfect no matter what until I turn it off. I've tried cleaning it all with alcohol with no luck. Will still only turn on if I pry on the motherboard (left side looking at back of phone) any help is appreciated as I am stumped. Thank you