How would I convince a bank to finance my business?

Say I got a bank to finance my business, the product which I sold ended up being a failure on the market and now the banks don%26#039;t want to finance my business. What could I do to convince them to help me finance for my new product?|||You%26#039;ll need a good solid business plan and have figures and answers to back it up. Plus some money out of your own pocket.