Samsung launched the Galaxy Z Fold 2 device back in 2020; it came with Android 10, which was the latest version of that time; later, it received more major updates and currently running on Android 13-based One UI 5.1. At the same time of its release, the Korean giant introduced a luxury variant of the device named Galaxy W21 5G, with the especially of two SIM card slots; however, it was limited to the Chinese market.
Notably, the Galaxy W21 5G is now getting the June 2023 security update with the firmware version number W2021ZCU3FWF1. As looking to the firmware version number, it looks like the update brings some extra changes behind the scene.
However, the official changelog doesn’t reveal anything about it; specifically, it comes as a standard security patch update. This only says that the security of devices is enhanced, and the overall stability of functions has been improved.
In addition, the latest security update includes several fixes that improve internal functions; according to the official documentation, Samsung has also included some security patches which is exclusively available for Galaxy devices; it adds 11 patches that fix many functions, including Knox ID, Exynos baseband and CC mode.
Being a variant of Galaxy Z Fold 2 5G, it doesn’t treat Samsung as it is in terms of software updates. The Galaxy W21 device is listed under the biannual security update list, which means it will be only eligible for two security updates per year.
