Nothing has rolled out the Nothing Phone (3a) series update with Nothing OS B4.0-251229-2335. The rollout will be in stages, with availability changing according to region or device. This allows for better stability and fixes issues before the complete rollout.
Changelog: Nothing Phone (3a) Series Update
Visual Enhancements
- The battery percentage icon now displays the number inside the icon for a cleaner UI look.
- Volume slider animations are now smoother when adjusting with hardware keys.
- Extra Dark Mode has been optimized for better visual adaptation across different lighting scenarios.
- Recorder app animations, including sound waves and wheels, are more fluid for an improved recording experience.
General Improvements or fixes
- Dual SIM customization: Users can now set different ringtones for each SIM.
- Vibration and haptic feedback have been refined for more consistent responsiveness across different scenarios.
- Call volume has been optimized for users with Oticon Zircon 2 miniRITE T hearing aids.
- Power efficiency during rear camera video recording has been improved.
- Pedometer widgets are now more stable.
- Fixed display inconsistencies in the status bar, Quick Settings, and notifications for better visual uniformity.
- Fixed an issue where faces appeared blurred when taking close-range selfies.
- Fixed inaccurate watermark details (focal length or location) in captured photos.
- Enhanced camera stability overall.
- Improved network stability across various connectivity scenarios.
- Boosted system stability and overall smoothness for a more reliable experience.
- Updated Google Mobile Services (GMS) to the December 2025 version.
- Integrated the December 2025 Android security patch for improved device protection
This Changelog is based on the Community Post posted by Nothing.
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