Samsung Qn90b Firmware 1710 Hot Today

For most users:
✅ Update to 1710 only if you experience eARC issues or game mode flicker on prior firmware.
❌ Avoid if your QN90B is in a tight wall mount or enclosed cabinet—thermal headroom is reduced.

If already on 1710:

Downgrade path:
Not officially possible. USB rollback blocked after 17xx. Use Service Menu only if experienced (risks warranty). samsung qn90b firmware 1710 hot

Firmware version 1710 for the Samsung QN90B (Neo QLED 4K) has been flagged by multiple users and technical forums as a “hot” release—both in thermal behavior and update frequency. This brief consolidates empirical findings and provides actionable guidance.

The QN90B uses ~720-1,100 local dimming zones depending on size. Firmware 1710 appears to have raised the peak current to these LEDs from 1.8A to ~2.0A per zone. That’s an 11% increase in electrical power. Since LEDs are inefficient (roughly 60-70% efficient at high drive currents), the extra 0.2A translates directly into waste heat. For most users: ✅ Update to 1710 only

Here is the bad news: As of March 2025, Samsung implemented a security bootloader lock (eFuse) starting with firmware 1650. Once you upgrade to 1710, you cannot downgrade to 160x or earlier via USB. Attempting to do so will display “Update files not found” or “Invalid version.”

The only “downgrade” possible is:

Recommendation: Do not attempt brute-force downgrades. You will brick your QN90B.

This version may cause:

Advantages of 1710:

Disadvantages: