: 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.
: Place the extracted firmware file (often named something like upgrade_loader.pkg ) onto the root of the USB drive—do not put it inside a folder. Perform the Update : Download Hisense UHD Smart 70M7000UWG part01 rar
Searching for split archive files like "part01.rar" for the Hisense UHD Smart 70M7000UWG : With the TV off, insert the USB into a white USB 2
It is highly recommended to use official sources rather than third-party links to avoid corrupting your TV's system. Perform the Update : Searching for split archive
Once you have all the .rar parts (e.g., part01, part02) and have extracted them: : Format a USB stick to FAT32 .
: Go to Settings > Support > System Update > Upgrade from USB .
: 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