Nothing OS 5.0 rolls out to Phone (3a) and (4a) series, based on Android 17
What happened
According to 91Mobiles, the stable Nothing OS 5 update is rolling out to the Nothing Phone (4a) and Phone (3a) series. Tech-ish and Android Central report that the update covers the Phone (4a), (4a) Pro, (3a) and (3a) Pro, and that it is based on Android 17.
When it started
The reports are dated November 2, 2026, and Android Central says the update arrived as planned. The sources do not give a full rollout schedule for every device.
How it spread
The sources do not describe the installation steps or how to check for the update. They also do not say whether the rollout is staged by region or carrier.
Why it matters
Nothing OS 5 is described as a much-awaited update for these phones, and coverage has highlighted it as the first Android 17-based release for the series. The sources do not detail specific new features.