Before downloading anything, you must identify your specific device model and hardware specs:

: If possible, back up your current ROM using tools like SP Flash Tool before attempting an upgrade. Where to Find Firmware Downloads Joying Official

Before downloading anything, collect:

Copy the update files directly to the root directory of the USB. Execution:

The (often referred to as AC8227L ) is a popular MediaTek-based system-on-chip used in many universal Chinese Android head units from brands like Junsun , Joying , and Hizpo . While many of these devices are marketed as running Android 12 , it is common for the underlying hardware to actually run an older version (like Android 8.1 or 10) with a UI designed to look like Android 12. Finding the Correct Firmware