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https://toengel.net/philipsblog/2017/01/25/philips-neue-firmware-fuer-2016er-tv-serien-4x31-und-5231-tpn163e-2-180/
Philips: Neue Firmware für 2016er TV-Serien 4×31 und 5231 (TPN163E: 2.180)