Archive · 28 Jan 2026
Samsung Galaxy S21 Series Ends Software Support
Samsung is sending out the last security update for the Galaxy S21 series, which includes the S21, S21+, and S21 Ultra.
These phones were first sold in 2021, and Samsung promised to support them with updates for five years.
This final update has 55 security patches to protect the phones from hackers and viruses.
After this update, Samsung won't send any more security updates, which means the phones might not be as safe to use.
People who use their phones for banking or important work might want to think about getting a new phone.
Samsung's newer phones, like the Galaxy S24 and S25, will get updates for seven years, so they might be a better choice for the future.
Samsung is delivering the final security update for the Galaxy S21 series, marking the end of its 5-year support cycle.
The update includes 55 security patches, with 23 from Google and 1 critical fix.
The update is rolling out first in South Korea and will be available in other regions like India in the coming weeks.
Without future security updates, the devices will be more vulnerable to malware and hacking attempts.
Samsung's newer models, like the Galaxy S24 and S25, offer up to seven years of updates, making them a safer long-term option.
- Who
- Samsung Galaxy S21, S21+, S21 Ultra users
- What
- End of software support and final security update
- When
- January 2026
- Where
- Global rollout starting in South Korea
- Why
- Completion of Samsung's promised 5-year support cycle
- Device Series
- Galaxy S21, S21+, S21 Ultra
- Initial Release Year
- 2021
- Promised Support Duration
- 5 years
- Final Security Update
- January 2026
- Number of Security Patches
- 55
- Critical Fixes
- 1
- High-Risk Warnings
- 28
- Update Rollout Start
- South Korea