Especially after the emergence of smart phones, mobile phones have been modularized in many places. In a mobile phone, there are a charging module, a processor module, a display module and a storage module. As long as any module is not broken, it can continue to be used. These parts are useless in our hands, but they are good parts in the hands of manufacturers or mobile phone repairers. They can make use of their knowledge and experience.

Turn a useless old mobile phone into a mobile phone that can be used continuously. Of course, the mobile phone we are talking about here is a smart phone, and it has not been eliminated for a long time. If the memory of a smart phone ten years ago was less than 1g, it was obviously unusable after recycling.

Second, mobile phones are recycled to refine heavy metals.

Mobile phones need good electrifying materials where each module contacts, but ordinary aluminum, iron and copper can't meet the demand, so these places need gold plating, so mobile phones contain gold. There are many videos of mobile phone panning for gold on the Internet. These videos dare not say that they are all fake, but there are many fake ones. The video of extracting a small piece of gold with three or four mobile phones has made many people believe it and dream of extracting gold with mobile phones to make a fortune.

What I want to tell you here is that mobile phones contain gold. If you want to extract one or two grams of gold, you need hundreds of old mobile phones. In this way, the gold of each mobile phone is about three yuan, but the raw materials such as acid used to corrode gold also cost one or two yuan. It is obviously not feasible to make a fortune by smelting copper with mobile phones.