If you want to remove SVITRIX from your Ulanzi TC001 you need to flash the original Firmware.

Method 1

1. Download the dump of the original firmware
2. Connect your Ulanzi with your PC and open https://esp.huhn.me/ in your browser.
3. Hit Connect -> Erase
4. Upload the .bin file and enter 0x00000. Then hit "program"
   

Method 2 (Windows only)

1. Download the ESP32 download tool
2. Download the dump of the original firmware
3. Start the ESP32 download tool and select ESP32 as chip type

Set it up like that and hit "Start"