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Nothing OS B4.1-260402-1229 Update Released for Phone (4a) [April 8, 2026]

Key Points of This Article
  • Nothing has released the “Nothing OS B4.1-260402-1229” software update for the “Phone (4a).”
  • This is the first update since “Nothing OS B4.1-260317-2043,” which was initially released on March 22, 2026 (Sun), following the international launch on March 13, 2026 (Fri).
  • The update includes camera enhancements, general improvements, and bug fixes.

On Wednesday, April 8, 2026, the British tech startup “Nothing Technologies Limited” began rolling out the “Nothing OS B4.1-260402-1229” software update for its Android smartphone, the Phone (4a), and released the official changelog.

This is the first software update for the “Phone (4a)” since the initial release of “Nothing OS B4.1-260317-2043,” which arrived on March 22, 2026 (Sun), following its international launch on March 13, 2026 (Fri). The “Nothing OS B4.1-260402-1229” update focuses on camera enhancements, general improvements, and bug fixes. Additionally, the Android security patch level has been updated to April 2026.

The “Nothing OS B4.1-260402-1229” update for the “Phone (4a)” is being distributed via Over-the-Air (OTA) in stages.

■ Camera Enhancements
  • 📹 Improved auto-exposure stability when using the front camera.
  • 🔭 Enhanced autofocus performance for the rear camera.
  • 📷 Optimized HDR brightness consistency for portrait shots using the rear camera.
  • 🏙️ Improved color reproduction for a more natural and vivid viewing experience.
■ General Improvements and Bug Fixes
  • 🫧 Added suggestions to set frequently interacted notifications as priority notifications.
  • 🔋 Adjusted spacing between status bar icons for a more consistent and refined layout.
  • 📳 Optimized haptic feedback for the “Recorder” app.
  • 📱 Fixed several known issues for a smoother and more stable user experience.
  • ⚙️ Improved overall system stability.
  • 🛡️ Android security patch level updated to April 2026.
“Phone (4a)” Software Update: Nothing OS B4.1-260402-1229 Changelog

Source: Nothing

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