- Version B4.1: The April 2026 update for the Nothing Phone (3) and Phone (3a) series brings system stability, notification fixes, and the latest security patch.
- Key Feature: Introduces the new 'Essential Voice' AI feature for smarter speech-to-text and Live Updates for real-time context awareness on the Phone (3).
- Rollout Status: The update is currently rolling out globally in a staged manner, with Indian users typically receiving it 1-3 weeks after the global rollout begins.
Nothing's latest software drop is here. Dubbed Nothing OS 4.1, it's the first real feature update for the Phone (3) and it does two things. It finally delivers some of the AI smarts that were part of the Phone (3) launch pitch, and it patches up a bunch of annoying little bugs for everyone. If you own one of these phones, you'll want it. The update is rolling out now, though as usual, folks in India might be waiting a bit longer.
Update Overview
- Update Name: Nothing OS 4.1 / April 2026 Security Update
- Version/Build Number: Nothing OS B4.1 (Build numbers: 260414-1846 for Phone (3), 260414-1749 for Phone (3a) series)
- Update Type: Feature Update & Security Patch
- Size: Approximately 295 MB (for Phone (3))
- Rollout Status: Rolling out now (staged OTA)
- Region: Global rollout, including India (with potential delays for AI features)
- Security Patch Level: April 2026
You should grab this one. It's not a massive overhaul, but it's packing a current security patch that fixes known vulnerabilities, which alone makes it worth the download. On top of that, it solves specific problems like glitchy notification panels. That's a solid combo.
Eligible Devices and Rollout Schedule
The Nothing OS 4.1 update is hitting two phone lines. It's a phased rollout, so don't panic if you don't see it immediately. They send it to a small group first to catch any major disasters before pushing it to everyone.
Nothing Phone (3)
This is the flagship, so it gets the full package. The update is live for it right now.
Nothing Phone (3a) Series
Yep, the cheaper models get it too. The (3a) and (3a) Plus are confirmed for the B4.1 update, though their focus is more on the stability fixes than the flashy new AI stuff.
| Device | Region | Status | Expected Date |
|---|---|---|---|
| Nothing Phone (3) | Global (Ex-India) | Rolling Out Now | Late April 2026 |
| Nothing Phone (3a/3a Plus | Global (Ex-India) | Rolling Out Now | Late April 2026 |
| All Eligible Devices | India | Staged Rollout Pending | Early to Mid-May 2026 |
Heads up if you're in India: Get ready to wait a little. Because of extra carrier testing on networks like Jio and Airtel, updates typically land there 1 to 3 weeks after the global release starts. Your best bet is to just keep checking manually. Go to Settings > System > Software update and tap 'Check for update'.
New Features & Changes
Here's what's actually new on your phone after you install. The big ticket items are mostly for the Phone (3), but there are useful tweaks for all models.
AI & Smart Features (Phone (3) Primary Focus)
This is where Nothing starts making good on its AI promises. Two main features are arriving.
- Essential Voice AI: It's a new speech-to-text engine. The idea is that it doesn't just transcribe words, it tries to understand what you actually mean, which should lead to fewer embarrassing autocorrect-style mistakes.
- Live Updates: This is a background context system. Your phone will try to be more proactive, offering info or suggestions based on your location, calendar, or what app you're using. Think of it as a quieter, less intrusive Google Assistant.
Watch out in India: Don't be surprised if Essential Voice isn't there when your update arrives. Regional data laws sometimes mean these AI features get held back for extra testing or don't launch at all.
User Interface & System Fixes
This is the boring but vital stuff that makes your phone less frustrating to use.
- Notification Panel & Quick Settings Fix: They've fixed "some display errors." Translation: that weird visual bug you sometimes saw when pulling down the shade? Probably gone now.
- Performance & Stability: The official line is "enhanced overall system stability." In practice, that means fewer random stutters and app crashes. It should just feel a bit smoother.
- Third-Party App Video Call Improvement: Specifically for the Phone (3), video calls on apps like WhatsApp or Telegram should stutter less. A direct fix for a common complaint.
Bug Fixes & Security
Security Updates
This is non-negotiable. The update bundles in the April 2026 Android security patch. That patch closes holes that Google and others found in the core Android system up to that month. If you care about your phone not getting hijacked by some weird malware, you need this.
Addressed Issues
The changelog says they've gone after these specific problems:
- Those visual glitches in the notification panel and Quick Settings.
- General system instability and janky performance.
- Stuttering video on third-party call apps (for Phone (3) owners).
How to Download and Install
- Plug into Wi-Fi. Don't use your mobile data for this.
- Open your Settings app.
- Scroll down and tap System.
- Select Software update.
- Hit 'Check for update'. If B4.1 is ready for you, it'll show up.
- Tap Download and install.
- When it's done, tap Restart now to finish.
Before you hit install:
- Make sure your battery's above 50%, or just plug it in.
- You're on Wi-Fi, right?
- Clear at least 500MB of space, just in case.
- It's a good habit to back up anything critical, though OTAs usually keep your data safe.
What if it's not there? If you check and see nothing, the staged rollout hasn't picked your device yet. Wait a day or two and check again. Sometimes a simple phone restart can trigger the update check to work.
Should You Update Right Away?
Yes, update now if: You've been annoyed by the notification bugs, you live on video calls, or you just always want the latest security fixes. That April patch is a good enough reason by itself.
Maybe wait a bit if: You're super cautious and your phone is working perfectly. Let a few thousand other people be the guinea pigs for a couple of days to make sure no new, weird bugs pop up.
The bottom line: This is a recommended update. It fixes real issues, adds a couple of genuinely useful features for the flagship model, and patches security holes. There's no obvious reason to avoid it.
Frequently Asked Questions
I have a Phone (3) in India but don't see the Essential Voice feature. Why?
Blame regional regulations. AI features often get delayed or blocked in India due to local data laws. Keep checking for app updates from Nothing, or it might arrive in a later OS update.
My Phone (3a) got the update, but it doesn't have Essential Voice. Is this normal?
Totally normal. Nothing is reserving its headline AI features, Essential Voice and Live Updates, for the more expensive Phone (3) for now. Your (3a) gets the stability and security bits.
Will this update slow down my older Nothing phone?
According to Nothing's own notes, the opposite is true. The changelog specifically mentions enhancing stability and performance, not slowing things down.
Can I roll back to Nothing OS 4.0 after installing this?
Not without a big hassle. Officially, you can't. To go back, you'd need to unlock your bootloader and flash old software, which wipes your phone and probably voids your warranty. Don't plan on it.
How long should I wait in India if I haven't received the OTA?
With the typical 1-3 week delay, I wouldn't start worrying until we're into mid-May. If it's May 15th and you still have nothing, then maybe something's up.
Does this update improve battery life?
The changelog is silent on battery life. Any change would be incidental, maybe from the general stability tweaks. Don't install it expecting an extra hour of screen time.
Final Thoughts
Look, Nothing OS 4.1 isn't revolutionary. But it's a seriously competent update. For Phone (3) users, it delivers the first taste of the contextual AI that was supposed to set the phone apart. For everyone, it irons out irritating interface bugs and slaps on a vital security patch. That's a good week's work. The real test is whether features like Essential Voice feel like useful tools or just marketing bullet points in daily use. But as a foundation-polishing release, it's exactly what this young phone series needs. Install it when it hits your device.
Sources
- gizmochina.com
- nothingtec.com
- nothing.community
- nokiapoweruser.com
- x.com
- reddit.com