Ipad 3 not charging or fake charging

I have an iPad 3 shows battery charging symbol but the battery percentage does not increase it actually decreases over time. I am using a 12 w plug. I was working with another user on here and I learned a lot from him but unfortunately I am still getting the same results. What part of the iPad 3 schematic traces effect the battery charge and the fake charging problem.l?

I replaced q8104, q8123, ic usb and usb filter.

Additional help would be greatly appreciated.