Since these units rarely support standard over-the-air (OTA) updates, you will likely need a USB drive.
Once the completes successfully:
Firmware updates carry a risk of "bricking" your device if the wrong files are used. Always verify your specific hardware version before proceeding. This guide is for informational purposes only. android yt9216bj-00012-v001 update
Use this method if you have a standard update ZIP file. Since these units rarely support standard over-the-air (OTA)