sudo mkdir -p /opt/sigmastar sudo tar -xvf gcc-arm-8.2.1.tar.gz -C /opt/sigmastar/ Use code with caution. Add the toolchain to your PATH: export PATH=/opt/sigmastar/gcc-arm-8.2.1/bin:$PATH Use code with caution. Add this line to your ~/.bashrc to make it permanent. 4. Extracting the SDK
A frequent issue is the missing SPINANDINFO.sni file, which prevents the Flash Tool from identifying the hardware even if the chip shows "connected".