With the release of One UI 8, Samsung removed the bootloader unlocking feature, one of the most controversial issues in the Android ecosystem. This change also applies to flagship models such as the Galaxy S25 Ultra, Galaxy Z Fold 7, and Galaxy Z Flip 7.
One UI 8 Removes Bootloader Unlocking
The bootloader can no longer be unlocked by the user on these devices running One UI 8. This option, considered a key feature for the developer community and advanced users, allowed for the installation of custom ROMs, root access, or custom kernels on Android devices.

The first signs of the change appeared in the One UI 8 beta released for the Galaxy S25. This was later confirmed on the Galaxy Z Fold 7 and Z Flip 7, which were running the stable version of One UI 8.
The bootloader unlocking feature now applies to all devices running One UI 8, regardless of region or carrier. This move marks a significant departure from Samsung’s long-standing developer-friendly approach.
Locking the bootloader means that methods users have used to extend the life of their devices’ software or migrate to more customizable systems will no longer be possible.
This restriction disables any interventions designed to maintain current Android versions or improve system performance on a device whose official software support has ended. Samsung has not yet issued an official statement on the matter.
There are speculations that the restriction may be due to changes in security policies or requests from mobile operators. However, for users, this step means further shifting control of their devices to the manufacturer. Reducing the freedom offered by the Android platform directly impacts users seeking software flexibility.