Hi3798 Firmware Top: The Ultimate Guide to Reviving Your TV Box

: If your box is still functional, you can often go to Settings > System > Local Update and select the firmware file from your USB drive.

Power off the box, insert the USB, hold the "Reset" button (usually inside the AV jack), and power it on. Hold until the update screen appears. Conclusion

: Reviewers have noted PC-class USB 3.0 performance (up to 100 MB/s), making it ideal for playing large movie files from external hard drives.