How do I fix a hole in the wall?
Cut a back block which is a piece of plasterboard a little bigger than the hole with a nail pulled through it. Insert the block through the hole pull the block back against the hole using some plaster mix to make it adhere.

After it is dry you can push thescrew or nail back through the block and fill up the hole scraping back between coats. The final coat is the fine finish that can be sanded using sand paper or a block ready for paint.
