Hi, lately I installed an NVME M.2 ssd and after unplugging the battery board data cable I ripped of the head. After installing everything and plugging everything the MacBook don't start anymore with the battery and it doesn't show up on the sidebar. I ordered a new battery board data cable and plugged that won in with no results. Am I missing something ?? any setting ?? or manipulation ?? I did everything step by step. Please help !!