Here at Fix My Mobile we see first hand all the insides of your phone and you might be surprised at how many different parts go into a phone, most of which are FAR from biodegradable. Thats why it's important to not throw your old phones in the bin. They contain parts that can be harmful to the environment such as batteries and circuit boards.
We disassemble your old mobile phones and send the parts away to organisations that are able to break down the parts and remake them into new products. That means your phone never has to see the inside of a land fill!