Chips in older phones are usually processed in the following ways:
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Recycling: Some specialized recycling agencies or companies collect old mobile phones and recycle the chips in them. These recycling facilities process the chips for reuse or remanufacturing. Recycling old mobile phone chips helps reduce resource waste and environmental pollution.
Exchange for a new phone: When people buy a new phone, they usually give their old phone to the phone manufacturer or electronics seller. These manufacturers or vendors may process old phones, including dismantling the chips and recycling them.
Second-hand market: Some people will sell their old phones to second-hand markets, such as second-hand mobile phone shops or online platforms. In this case, the chip of the old phone may be continued by the buyer, or purchased and used by someone else in the future.
These are recycled by mobile phone shops, and then sold to mobile phone manufacturers, manufacturers will extract useful things according to the parts inside these chips, and then send them to the new chip production line for assembly, and the rest is directly to refine other things, which are conducive to environmental protection. So you can recycle what you don't use