A 16GB or 32GB USB flash drive formatted to FAT32 .

Fixes for app crashes, system lag, and freezing.

Before starting the update process, ensure you have the following:

Updating to a more recent Android version (such as moving from Android 8 or 9 to Android 10 or 11) ensures compatibility with the latest Play Store apps. Pre-Update Requirements

Download the specific YT9216BJ firmware intended for your unit. Using a file for a different model (like the YT9213AJ ) can brick your device. Trusted sources for these files include developer communities like XDA-Developers or the official XYAuto website.