Samsung is continuing its One UI 8.5 rollout down the product lineup. After updating the Galaxy A15 5G, the company has now released the stable One UI 8.5 update for both the Galaxy A15 4G and the Galaxy A24 4G.
Both updates are currently going out in South Korea, with wider availability expected in the coming days. This follows a pattern Samsung has kept up across its Galaxy A series, working through the lineup model by model rather than dropping everything at once.
That approach matters for budget phone buyers. The Galaxy A15 and A24 sit in the affordable end of Samsung’s portfolio, and getting a major software update on these devices shows Samsung is willing to invest in software support beyond its flagship range.
Here is what each update looks like in detail:
- Galaxy A15 4G (SM-A155N): Firmware version A155NKSU9DZF1, includes the May 2026 Android security patch, download size is around 2.5GB
- Galaxy A24 4G (SM-A245N): Firmware version A245NKSU9FZF1, also around 2.4GB in size
If you are in South Korea and have not seen the update notification yet, you can check manually by going to Settings, then Software update on your device.
The broader context here is worth noting. Android software support for mid-range and budget phones has improved significantly over the past few years. Samsung in particular has committed to longer update cycles across its Galaxy A lineup, and rolling out One UI 8.5 to older 4G models is a direct result of that policy. Users who bought these phones expecting a few years of support are getting exactly that.
Samsung has not confirmed a specific timeline for when the rollout will reach other regions, but based on past updates, most markets typically see availability within one to two weeks of the South Korean launch.