Update On Sony Kdl50w800c Hot — Firmware Change

This is the standard method.

If you have already installed the "hot" firmware, take these steps:

Multiple users on AVS Forum and Reddit’s r/bravia have reported that post-update, their KDL50W800C runs 5–8°C warmer than before. Using IR thermometers, some measured the back panel near the SoC reaching 52°C (125°F) under normal operation. The TV’s internal thermal sensors (viewable via service menu) show higher idle temps. firmware change update on sony kdl50w800c hot

Why? The new firmware appears to disable some aggressive downclocking that previously kept the MediaTek MT5890 cooler. Sony likely did this to improve UI smoothness. Less throttling = more heat = "hot" TV.

Before you install, be aware of these verified bugs: This is the standard method

Date: April 12, 2026 Target Model: Sony BRAVIA KDL-50W800C (2015 model, Android TV)

A recent firmware rollout for the legacy Sony KDL50W800C has sparked significant discussion in home theater forums. Users are reporting that the update is running "hot"—both in terms of performance changes and, literally, increased device temperature. The TV’s internal thermal sensors (viewable via service

Here is everything you need to know about the latest firmware changes, installation warnings, and how to optimize your TV post-update.

It is normal for the back of the KDL-50W800C to get warm, but if the TV shuts down or displays a high-temperature warning during or after an update:

If you decide to go ahead, here’s the safe method. Do not use the auto-update over WiFi for this “hot” firmware—too many reports of bricked units. Instead, use a USB drive.