Got sent an update via usb by Hisense which made the blacks on my tv deeper. You honestly can't this isn't an OLED : r/Hisense
Update failure. Was presented with this unskippable update notice tonight. The TV tried to install the update, which resulted in an error. The TV rebooted and notified us about the update again,
HISENSE HD Smart TV | 32 inch | Wide View Angle
98" ULED 4K TV Series U7HAU - Hisense Australia
How to Update Software / Firmware System Update: Hisense Android TV - YouTube
Hisense Roku TV models – 32”, 50”, 55”, 65” 4K Smart TVs | Roku