If your steering wheel controls don't work, re-select your Canbus protocol in the Factory menu.
: Many 8227L units claim to run Android 10, 11, or 12 but are actually running "skinned" versions of Android 8.1 Go Edition alps 8227l-demo firmware update
If your unit shows no signs of life (black screen, no recovery), you need the on a Windows PC and a male-to-male USB cable. If your steering wheel controls don't work, re-select
Go to Settings > About Device > Build Number . If it ends in _Demo or is older than 2023, an update is recommended. If it ends in _Demo or is older
(often found in Junsun and generic Chinese Android head units) is a common task for users looking to fix persistent bugs like WLAN drops, Bluetooth pairing failures, or sluggish UI performance. This review covers the update experience, performance gains, and critical risks. Performance and Stability WLAN and Bluetooth Repair