Google has started rolling out a second December 2025 update for its Pixel smartphones, and this time the company has published both factory images and over-the-air (OTA) update files.
This move allows Google Pixel users to manually install the update if it hasn’t appeared automatically on their devices. The update focuses on solving some persistent issues that have affected Pixel devices since the initial December release earlier in the month.
What This Second Update Is About
The follow-up December update was unveiled after the earlier Android 16 QPR2 rollout, which brought a range of performance improvements and security fixes to Pixel devices.
While that update resolved many bugs and introduced small refinements, some users continued to report challenges like battery drain, touch unresponsiveness on certain models, and problems accessing locally stored offline content.
This second update builds on the earlier release by directly addressing these specific concerns. Google’s provision of factory and OTA images means users can manually sideload the update rather than wait for their device to receive it automatically.
Factory vs OTA Images
There are two main ways to update Pixel devices using the files published by Google:
- Factory Images: These are full system images that restore a device to a specific build. They are useful for clean installations or for users who want to flash their device from scratch.
- OTA Images: These files represent incremental updates that preserve user data and settings. OTA images are typically preferred by users who want to update without losing personal information and customized settings.
By making both types of images available, Google gives Pixel owners flexibility in how they install the update. Users who want a clean installation can use the factory images, while others can apply the OTA images to keep their data intact.
How the Update Fixes Key Issues
The second December update targets several notable issues that some users faced after the original December patch hit devices. According to carriers and community reports, the update aims to:
- Reduce battery drain that has shortened battery life for affected users.
- Improve touch responsiveness on models like the Pixel 10, where intermittent unresponsive behavior was reported.
- Restore access to cached offline content, such as media or maps that became inaccessible after upgrading from older Android versions directly to Android 16.
These fixes reflect feedback from users who encountered challenges with the earlier December release. Some community members even noted variations in availability across carriers and regions, underscoring the value of manual installation files.
Build Variants
The update is released for several regional builds of the Pixel Series, including:
- Global: BP4A.251205.006.E1
- Japan: BP4A.251205.006.C2
- EMEA (Europe, Middle East, Africa): BP4A.251205.006.A4
These builds correspond to the Pixel 8 and newer models and match the variant structure seen in the first December update. Having distinct builds for different regions helps ensure devices receive the proper configuration and optimization for their market.
Manual Installation: What You Need to Know
If your Pixel device has not yet received the second December update automatically, you can use the factory or OTA images published by Google to install it manually. Sideloading OTA files generally preserves user settings, while factory images may wipe device data unless steps are taken to back up and restore information.
Be sure to follow proper instructions from qualified resources before attempting a manual install, as improper use of factory images can lead to data loss or issues with the bootloader.
Why This Out-of-Cycle Update Matters
A second update in December is unusual because most monthly security updates are typically delivered as a single batch. The need for a follow-up update so soon indicates that some issues in the first patch were significant enough to warrant a quicker resolution.
While Google has not formally explained the reasoning publicly, the appearance of these manual install files suggests a strong commitment to ensuring system stability and optimal performance for Pixel owners.
Security and performance are increasingly important for smartphone users, especially as devices handle sensitive personal data and support essential daily tasks. By addressing battery and touch responsiveness issues, Google is helping improve the overall user experience across its flagship hardware.
How Users Are Responding
Community discussions have highlighted varied experiences with the updates. Some users have reported receiving the second update promptly, while others have noted delays depending on carrier or region. For example, several posts from Pixel owners describe receiving the new build on Verizon, while the rollout appeared slower on networks like T-Mobile in certain areas.
Manual installation has become a go-to option for some enthusiasts who prefer not to wait for automatic availability. This pattern reflects broader smartphone user behavior where enthusiasts engage with early releases and sideload updates to stay on the latest builds.
What It Means for Pixel Users Going Forward
The release of these images may also signal how Google plans to manage updates in the future. With Android 16 QPR2 already rolled out earlier in December, the second update shows that Google is willing to act quickly when problems arise.
That responsiveness could reassure users that the company is attentive to feedback and prepared to refine software even after a major update is published.
The presence of both factory and OTA images also highlights Google’s efforts to support a range of users. From casual owners who rely on automatic updates to advanced users who engage with manual installs, the diverse options accommodate different preferences and technical comfort levels.
