Apple Releases Revised iOS 26 Beta to Address Battery Issue on iPhone 15 and iPhone 16
A revised iOS 26 developer beta is now available—and it's designed to fix a troubling battery issue affecting iPhone 15 and iPhone 16 users. Many developers who installed the initial version of iOS 26 encountered a glitch where their devices displayed a low battery warning and failed to start up. Apple responded quickly by seeding an updated beta aimed specifically at resolving this iOS 26 battery issue.
If you're using an iPhone 14 or older, you won’t see this updated beta, as it's restricted to the latest device models. Still, the implications are significant for anyone tracking iOS development or preparing apps for the upcoming major iOS update, especially since iOS 26 brings a host of new design changes and features across Apple’s ecosystem.
What Caused the iOS 26 Battery Issue?
Apple's initial iOS 26 beta rollout hit an unexpected snag. iPhone 15 and iPhone 16 users reported that after installing the beta, their phones would show a low battery icon even when the battery was charged. Worse, affected devices wouldn't boot up, leaving some developers temporarily locked out of their phones.
This issue didn’t appear to affect older iPhones like the iPhone 14 or earlier, which raised questions about hardware-software interaction exclusive to Apple’s newest A18 and A19 chipsets. While Apple hasn’t disclosed the exact technical details, the company quickly issued a revised beta version, targeting only iPhone 15 and iPhone 16 models to patch the power management bug.
By acting swiftly, Apple signaled its commitment to developer experience and device reliability. That’s crucial as excitement builds around iOS 26’s full public release, expected in September 2025.
New Features in iOS 26 Beyond the Battery Fix
The iOS 26 update is shaping up to be one of Apple’s most ambitious iPhone software releases in years. The standout change is the introduction of Apple’s new Liquid Glass design, a visual overhaul meant to make the iOS interface feel more dynamic, fluid, and immersive. Animations, icons, and UI elements across the system now carry a more tactile, almost holographic look that responds to touch in real time.
On the functionality side, iOS 26 also introduces major improvements to core apps like:
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Messages: New smart replies and real-time voice transcription
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Safari: Enhanced AI-powered search suggestions and privacy controls
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Photos & Camera: Smarter scene recognition and 3D spatial image capture for Vision Pro
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Phone: Custom voicemail transcripts with AI summarization
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Music: Shared playlist creation in real time and adaptive sound settings
All these features were showcased during Apple’s WWDC 2025 keynote. With this revised beta now addressing the early iOS 26 battery issue, developers can safely test and optimize their apps around these exciting capabilities.
When Can Public Beta Testers Try iOS 26?
Right now, access to the iOS 26 beta remains exclusive to Apple’s registered developer community. However, public beta testers can expect their first taste of the new OS starting July 2025, when Apple typically broadens availability. This staged rollout allows time to resolve bugs—like the early battery issue—and ensure app compatibility across different iPhone models.
By September 2025, Apple is expected to launch the full versions of:
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iOS 26
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iPadOS 26
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macOS 26
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watchOS 26
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tvOS 26
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visionOS 26
Until then, developers using iPhone 15 and iPhone 16 devices are encouraged to install the revised beta through the Settings > General > Software Update section. Apple has not stated whether further betas will be released before the public version, but users can expect ongoing tweaks as feedback continues.
Apple’s rapid release of a revised iOS 26 developer beta illustrates the tech giant's ongoing dedication to platform stability and user trust. Although the iOS 26 battery issue was a temporary hiccup, it highlighted how crucial it is for developers and early adopters to remain cautious with first-wave beta software—especially on primary devices.
As the public beta window approaches, interest around iOS 26 continues to grow thanks to its rich feature set, stunning new UI design, and deep integration with upcoming Apple hardware. Whether you're a developer preparing your apps or a tech enthusiast eager for what’s next, the revised iOS 26 beta puts Apple’s software roadmap back on track.
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