Repairing my keyboard gone wrong and then right.

Few months ago I tried to repair an old unused keyboard. I opened it cleaned and put everything back in place.

But didn't work.

Thinking it has met it's end-of-life, I gave it to my sister's daughter, 2 year old Komal. She went hard with it. Once she even thrown it.

To my surprise, after a few throws, it's now working properly 🙆.