If you own a modern Vizio SmartCast TV—particularly from the V-Series, M-Series, or P-Series Quantum lines—you’ve likely seen the notification: “Firmware version 4.25.11 is available.” But what exactly does this update do? Is it safe to install? Does it fix the infamous HDMI handshake issues or the random reboot cycles?
| Metric | Firmware 4.18.20 (before) | Firmware 4.25.11 (after) | |--------|----------------------------|---------------------------| | Boot time (cold start) | 22.4 seconds | 19.1 seconds | | Netflix launch (cold) | 6.2 seconds | 4.8 seconds | | ARC handshake (to Sonos) | 4-5 seconds | 2-3 seconds | | VRR flicker in HDR games | Occasional | None observed | | WatchFree+ channel change | 1.8 seconds | 1.1 seconds | vizio firmware 4.25.11
Last updated: October 2024 – This article will be updated when 4.25.12 is released. If you own a modern Vizio SmartCast TV—particularly