If you are using a Raspberry Pi, the best approach is just to follow the guide over at the Tuya-Convert git and then skip down to Configuring Tasmota for the Brilliant Plug. This approach has been tried and tested and just keeps getting simpler. Over on YouTube digiblurDIY has a great guide following from the Tuya-Convert procedure which is great for beginners.

We need to connect to the serial programming interface of the ESP8266 chip. This is done by connecting our serial-to-USB converter TX and RX pins to the ESP8266 RX and TX pins and powering the chip with the 3.3V and GND pins.

Administrators looking for the latest firmware downloads can review this page to locate firmware updates for QRadar appliances. The installation instructions include a direct download link to the firmware from IBM Fix Central.