Mine is a mid 2012 13” MBP, It's not powering on, not charging properly, not showing anything on battery indicator. Though battery was absolutely fine the last time I used it. The charging led is just showing faint green light, when I try SMC reset, it just keeps blinking faintly. I've tried cleaning the ports, removing the battery connector for a few minutes. I took it to Apple service centre and even their charger didn't work. Can anybody help with this?