Turn on your Hisense TV and plug the USB drive into the (usually the white or black port, not the blue 3.0 port). Go to Settings > Support > System Update . Select Upgrade from USB .
Disclaimer: Firmware updating carries inherent risk. If your TV is under warranty and the USB method fails, stop and request a service appointment. This guide is for informational purposes. Always follow the exact instructions provided by Hisense support for your specific model. hisense firmware update usb
Method B: "Force Update" (If TV is stuck on logo/won't boot) Turn the TV and unplug it from the wall. Insert the USB drive into the TV. Plug the TV back in. hold the Power button on the remote control (or the physical button on the TV). Turn on your Hisense TV and plug the