They made the mistake of selecting Mediatek for the FP1 and ran out of viable options to keep supporting it at some point.
The hardware support was EOL'd due to supply chain issues: https://www.fairphone.com/en/2017/07/20/why-we-had-to-stop-s...
The hardware support was EOL'd due to supply chain issues: https://www.fairphone.com/en/2017/07/20/why-we-had-to-stop-s...
For subsequent devices (FP2 and FP3) the situation has improved a bit but frankly, long term support from Qualcomm is also non-existent. We are still struggling to bring updates to the old platform of FP2.