Purchased a battery for iPhone 3gs, followed steps from iFixit. 1st step,the case almost opened by itself, and noticed a bulging from center of the phone. Upon removing the battery, noticed bloated battery, that had distorted the logic board. In addition, the back cover and bezel were distorted, but fit back well. May need some adhesive to ensure closure. Any suggestions to source a logic board? iFixit doesn't, from what I see, carry it. As the logic board is distorted, is the best path to replace? Thanks