: With the TV off, insert the USB into a white USB 2.0 port . Press and hold the Power/Standby button on the remote while plugging the TV back in until "Software Updating" appears.

* COMMERCIAL. * Firmware Download. SUPPORT. Firmware Download. * Company. Hisense-USA Product Support - Hisense Global

: Do not turn off your TV or remove the USB drive during the installation, as this can permanently "brick" the device. Hisense Firmware Downloads & Updates | Support

usually indicates a manual firmware update package. These multi-part files must be fully downloaded and extracted together to produce a single .pkg or flash file for your TV. How to Get and Use Official Firmware