How to prepare your Samsung Galaxy for the One UI 9 update

Samsung’s One UI 9 rolled out on September 16 for S23, Z Flip, and Z Fold devices no older than the fifth generation. The stable update needs ~4 GB free space, a full charge, and Wi-Fi, and users should back up data before installing. Beta releases are available for the A55 (403.66 MB), A35 (~500 MB), and S24 (600.90 MB) in South Korea and India, limited to devices enrolled in Samsung’s beta program.