It makes standard-definition videos look closer to High Dynamic Range (HDR) by expanding the color palette and brightness levels.
Follow the on-screen instructions to download and flash the latest software automatically. Method B: SP Flash Tool (Advanced) Firmware TCL 20E
TCL is not the fastest company regarding Android updates, but they do release periodic security patches. As of the latest quarter, the most common stable firmware version for the TCL 20E (Model number often listed as T611K or T610K depending on the region) is: It makes standard-definition videos look closer to High
You will need the for your specific model. Firmware TCL 20E
This will wipe all your data. It also voids your warranty if done incorrectly. Proceed at your own risk.