Link your PC to the STB using the RS232 cable while the STB is powered off.
The "Erom upgrade 361x rar" file typically contains the , a Windows-based utility used to flash or recover firmware on set-top boxes (STBs) and satellite receivers via an RS232 serial connection. Essential Recovery: A Guide to the STB EROM Upgrade Tool Download Erom upgrade 361x rar
Browse for your firmware file and ensure the "Download" option is checked. Link your PC to the STB using the