Exit code 4 indicates a fatal error during the installation process.
Could you please try installing the server components manually, by copying the installer (SQBServerSetup.exe) found in the SQL Backup folder, to the target machine, and run the installer?
Could you please try installing the server components manually, by copying the installer (SQBServerSetup.exe) found in the SQL Backup folder, to the target machine, and run the installer?