Chosen Solution
Hi Everyone, I recently bought a 2nd-hand Macbook Pro 2012. My previous computer was the same model,I was happy with it because I could replace most of the parts and I thought buying another I could reuse some parts of the old one. The Story: 1 - The computer I bought worked fine but the battery lifetime was shorter than my older one 2 - The trackpad was also worst than my old one Then, I decided to change both parts and replace them with those of my old computer The Result: 1 - The trackpad works but the system doesn’t recognise it 2 - The system neither recognizes the battery, therefore it doesn’t charge (the computer works plugged) We’ve tried: 1 - to use the battery inanother laptop and it works 2 - to replace again with the original ones and the same problem persists 3 - to reset nvram and smc and the problem persists Any idea? It doesn’t seem a hardware problem but I have no idea how to solve the software issue
Did you mess-up the batteries connection? You may need a new battery. How are you looking for the tranckpad? Go into the System Report from About This Mac then open the section USB it should be listed here. If not you’ll need to inspect the trackpad cable it is either not fully seated or the clamp is not set.
