Thanks for the video. You can improve it by positioning the video camera so that your hand does not block the view of the part being repaired. Also add lighting so that we can see the inside of the key button area as it isn't that visible with the low lighting.
Thank you very much for your help. Would you be so kind to tell me where we can get these new plastic caps for repairing the keys? Could you please provide me a link or something like that? Thank you very much.