If you are suffering from excessive heat but want to keep firmware 1710 for its improved HDR brightness, try these mitigations:
User measurements (IR thermometer, back panel center, 2 hours of HDR content): samsung qn90b firmware 1710 hot
| Firmware | Temp (°C) | Ambient | |---------|-----------|---------| | 1602 | 38–41 | 22°C | | 1710 | 46–51 | 22°C | If you are suffering from excessive heat but
Increase of 8–10°C — statistically significant for passive/active cooling. The QN90B uses mini-LED backlight with thousands of zones
The QN90B uses mini-LED backlight with thousands of zones. Firmware 1710 may have changed zone switching frequency or peak current limits, increasing heat from the LED driver boards.