Chosen Solution
So the power button on my Macbook A1502 13’ mid 2014 does not work. The thing is it does boot as soon as I plug the magsafe in. If it is running the top row of keys do not work, except for esc. Allother keys are working fine.I tried to sort out if it is a logicboard or keyboard problem by shortening the power pads on the logicboard and nothing happened. So I guess its a logicboard issue. Can anyone give me some advice on how to proceed any further? Update (01/24/2021) I hope this is the correct screenshot.
https://i.imgur.com/zXa8Slc.png Had to reinstall MacOS and update it to the newest one, so it took me some time. Now the keys are working again except the power button.
Sounds like the OS updates helped stabilize things. Now with the battery data we know the issue is strictly in the keyboard. The power button is part of the keyboard assembly [linked product missing or disabled: IF123-119-1] I’ll warn you its a lot of work getting the old keyboard out as its both screwed as well as riveted in (replacing the rivets with screws). So while being cheaper in cost it maybe smarter going the other way… Frankly, I think its just easier replacing the full uppercase 13” MacBook Pro Top case & Keyboard US, Apple P/N 661-8154. If you have a different keyboard layout the letter in front of the P/N defines the language as an example 13” MacBook Pro Top case, Keyboard UK, Apple P/N B661-8154 B being for British. Some setups offer a new battery so you can take advantage of that too! For either path you’ll need to follow this guide MacBook Pro 13" Retina Display Mid 2014 Upper Case Replacement and then you can carefully lift the keyboard backlight to gain access to the screws and rivets under it to remove the keyboard.