Software plays a big part in perceived obsolescence of devices.
"Out of date software means usable hardware provides a second rate experience, with reduced features, limited app compatibility and security vulnerabilities. "
"This report shows how companies across the mobile electronics supply chain can adopt a circular economy model to make money out of old devices, attract new customers around the world, increase brand loyalty, and cut manufacturing costs and risks. Doing so would also help to cut electronic waste, carbon emissions and resource use."
The report seems quite business-focused. The intended reader seems to be businesses? The environmental and social benefits seem to be presented as a side benefit.
Summary: "This report identifies how laptops, tablets and smartphones, which are up to five years old, can be profitably recovered and resold in the UK, US and India. It describes six business models that companies can use to adapt to consumer preferences for lower cost, longer-lasting electronics, and how reuse can bring the benefits of internet connected devices to new consumers in the developing world. "