MacBook Retina 12-inch Early 2015 Keyboard Track Pad Not Working Problem is common issue and many users have same problem with this 12 inch macbook retina early 2015 to 2017 models. if track pad and keyboard stops working then we can not connect normal 2.0 or 3.0 usb keyboard or mouse. we need extra C type port to USB Port to connect keyboard or mouse. to day we will talk some basic steps to fix this issue.
- First check your whole keyboard keys, if any key is pressed and its not looking normal then you have to check it properly. Sticky keyboard keys are a common problem with laptops, usually resulting from drink spillage, food crumbs, or other substances gumming up the keys. Clean keyboard sticky keys and check it again by pressing each key.
- in case of water spill you have to clean water and keyboard need proper cleaning, but water spill keyboard not works all times.
- Macbook 12 inch 2015 model keyboard not connected with motherboard, first keyboard cable connected to track pad then track pad connected to motherboard. if track pad faulty then both keyboard and track pad stops working. and we need to replace track pad first.
- Is track pad and keyboard not faulty then Touchpad Trackpad Flex Cable 821-00507 need to be replaced with new one.
Flex cable easily available in markete or you can order it online from ebay online store.
You can follow this video tutorial to replace MacBook 12-inch A1534 Trackpad Flex Cable.
This video tutorial created by ifixit team. follow each step carefully to disassemble macbook. if you are not tech guy then its better to take your laptop to some apple certified technician.