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https://toengel.net/philipsblog/2017/11/17/philips-neue-firmware-fuer-2016-2017er-tv-serien-4x31-5231-und-5242-tpn163e-2-270/
Philips: Neue Firmware für 2016/2017er TV-Serien 4×31, 5231 und 5242 (TPN163E: 2.270) 4.2 (5)