No official website exists. Reliable sources are community forums:
| Source | Notes | |--------|-------| | | Largest user repository — search “8227L firmware” | | XDA Developers | Search “8227L head unit” | | CarAV subreddit (megathread) | Shared Google Drive/MEGA links | | Your seller | Ask on AliExpress or Amazon messages — best match | | YT videos from known uploaders | Only if comments confirm it works | 8227l android 12 firmware download