Galaxy S26 Second April Patch Expands, May Fix Camera Issues

Madhav BiradarApril 29, 2026

The second April 2026 update for the Galaxy S26 series is now rolling out to more countries, including the US and South Korea. This week, Samsung started releasing the second update this month for the S26 in the US, and now it has expanded to more regions. The latest firmware version is S948NKSU2AZDE, and it is 756MB in size. The changelog doesn’t mention any new features, but the firmware strings hint at fixes for camera bugs.

What’s New in the Second Security Update?

If we look at the firmware string ‘NKSU’ instead of ‘NKSS’, it suggests that Samsung has changed something important on the devices. It could be related to recent camera bugs in 24MP mode and close-up zoom issues. Many users on the Samsung Community South Korea page have complained about these bugs, and the Camera Manager promised to fix them in a future update.

Further, Samsung could optimize the code to prevent battery drain and other issues on the Galaxy S26, S26+, and S26 Ultra devices. In the April 2026 update, Galaxy S24 and Galaxy S25 users witnessed massive battery drain issues. Samsung has recently updated the Galaxy S25 series with another April patch in the US, and now the Galaxy S26 is getting new firmware to prevent similar issues.

Galaxy S26 April Update Details

Firmware Version: S948NKSU2AZDE
Update Size: ~756MB
Security Level: April 5, 2026
OS: One UI 8.5
Changes: Camera bug fixes
Region: The US & South Korea (expanding soon)

The new software version is available in South Korea and the US for Verizon customers. You should check Settings > Software Update > Download and Install to get the second update. The April patch for the Galaxy S26 was released on the first day of April, so we need to see when it will receive next month’s security patch.

Written by

Madhav Biradar

Madhav Biradar is the Lead Software Analyst and Founder of Galaxy Updates. With over 13 years of experience tracking the evolution of Samsung’s ecosystem—from the early days of Tizen OS to the latest One UI Build & releases — specializes in firmware deconstruction and beta-cycle analysis. Based in India, he has personally tested every flagship Galaxy device & wearables since the Galaxy S2, providing readers with hands-on insights that go beyond standard spec sheets. Expertise: One UI Updates, firmware leaks, Samsung Firmware Deployment, Galaxy Ecosystem Integration, wearables, etc.