https://howtofixgadgets.com/macbook-key-broken-macbook-keyboard-broken-solution/ This will help you. In my case i broken my space key i was unable to fix it. Then after some research i found this article first i visited service centre to buy a new key but in my local they say they don’t have because my mac is too old. Then i visited local repainting shop and ask for a key what the shopkeeper did is he remove a key from a old not working laptop and replace it to my laptop. While replacing the key please watch 10 - 15 video online it will help you. Replacing keys of butterfly keyboard is really complex. All thanks this article just because of it i saved my money else i have to buy a new keyboard.

This will help you https://howtofixgadgets.com/iphone-charging-port-not-working-fix-charging-port-iphone/ I was also having the issue but i got a solution, That’s to clean my charging port i cleaned it with a brush and now my problem is thankfully solved. In apple charging port replacement cost is 10 - 20 dollars.

Reboot the smartphone this will solve your problem.