If your unit is bricked (black screen), use SP Flash Tool on a Windows PC:
A: Due to constant link rot, we recommend starting at the 4PDA forum thread titled "[Firmware] MTK 8227L Android 10 Head Units". The first post is always updated with the latest top UPD links. 8227l android 10 firmware upd download top
XDA has a dedicated thread for MTK 8227L units. Users share real Android 10 updates (not fake skins). Look for posts by recognized contributors like "marchnz" or "seb21". Download flashing tools: