: Android 8.1 Oreo is the standard extended version supported by the manufacturer.
fastboot devices fastboot flash boot boot.img fastboot flash vendor vendor.img fastboot flash system system.img fastboot flash recovery recovery.img fastboot erase cache fastboot reboot blackberry key2 firmware
This is often a software-level transition error. Before attempting a full firmware re-flash, ensure you have tried a factory reset Settings > System > Advanced > Reset options Network Compatibility: : Android 8
Go to Settings > About phone > Model number . About phone >
Since official download portals are rarely active, the community is the primary source.