Many 8227L units are sold with "spoofed" software versions, claiming to be Android 10 or 11 while actually running older versions like Android 6 (Marshmallow).
The primary hub for Android head unit enthusiasts. Search for your specific MCU version (like "YT9216B Android 10 update") to find community-verified ROMs Manufacturer Support: If you have a branded unit, check the Junsun Official Store Podofo Wiki 8227l Android 10 Firmware Download --BEST
Insert the drive into the powered-on head unit. It should automatically detect the update and prompt you to start. Many 8227L units are sold with "spoofed" software
8227L firmware 8.1 update.img