: Refreshed icons, smoother animations, and a reorganized quick panel and notification shade for a more consistent experience.
: Integration of updated security patches (e.g., May 2022 patch level for build A307GNDXU4CVE4 ) to protect device data. : Refreshed icons, smoother animations, and a reorganized
official firmware with primarily features the upgrade to Android 11 based on Samsung’s official update documentation . This firmware version introduces One UI 3.1 , which focuses on refined visual designs and enhanced performance. Core Update Features This firmware version introduces One UI 3
: Improved dynamic memory allocation for faster app performance and restricted background activities to extend battery life. Firmware Build Information For the SM-A307GN model, common
: Updates to specific network mode settings to improve connectivity stability. Firmware Build Information For the SM-A307GN model, common U4 firmware builds include: A307GNDXU4CVG3 : Released August 2022, focusing on overall stability. A307GNDXU4CVE4 : Released June 2022, featuring network setting changes. A307GNDXU4BTL1 : Earlier Android 10 build with U4 binary. Installation & Availability