Depending on whether your TV is functional or stuck in a boot loop, choose one of these two methods: Method A: Using the TV Menu (Functional TVs) Hisense Firmware Downloads & Updates | Support
Keeping your Hisense TV firmware up to date improves stability, adds features, and fixes bugs. This guide walks you through everything: identifying your model and firmware, safely downloading the correct firmware, preparing a USB drive, applying the update, and troubleshooting common issues. hisense firmware update usb link