Instead of doing all these things just buy a tiny laptop external USB keyboard if your Lenovo keyboard is not working.
It is possible you can break another thing during the change of internal keyboard. I am also using an external keyboard and believe me it is very cheap and easy to use.
You can buy it easily from anywhere. Even order it from https://www.amazon.com
- This reply was modified 3 weeks, 2 days ago by Yvonne Nymann Bruun-Schultz.