In November 2025, Nothing officially released the Nothing OS 4.0 stable update for the Nothing Phone (3) smartphone, and now the company has rolled out the Nothing OS 4.0 December update for this device.
Here are the details
Nothing Phone (3): Nothing OS 4.0 December update
The update arrives with firmware version Nothing OS B4.0.251224-1229, and the size of this update is 1.28GB. It includes new optimisations and a few fixes for the device.
Changelog-
Visual Enhancements
- Updated the battery percentage icon with the number displayed inside.
- Optimised Extra dark mode for better visual adaptation to more scenarios.
- Improved the smoothness of the volume slider animation when adjusting volume via keys.
- Optimised sound wave and wheel animations in Recorder for a more fluid experience.
General Improvements and Bug Fixes
- Setting different ringtones for dual SIMs is now supported.
- Always-on Glyph Toy will now always stay on until manually turned off.
- Fixed an issue where the in-car display could freeze when using Android Auto.
- Improved pocket mode detection logic for the Glyph interface.
- Optimised the vibration and haptic feedback across more scenarios.
- Enhanced stability of lock screen and AOD for a better experience.
- Improved Glyph mirror stability across more camera scenarios.
- Fixed an issue where the video encoding setting reverted from H.265 to H.264 when switching between shooting modes.
- Fixed an issue where the Pedometer Progress widget continued animating on the lock screen while AOD was on.
- Improved the searching speed for nearby available Wi-Fi networks.
- Enhanced overall system stability and smoothness.
- Updates to the December 2025 security patch.
Users should note that the device may temporarily heat up and increase power consumption during the update and will quickly return to normal after the process is complete.
