Provide your device serial number. Many OEMs will email you a secure download link even for legacy software.
The P50-368v5.0 release is a firmware/software update for the P50-368 device (network appliance/embedded system). It includes stability fixes, security patches, updated drivers, and minor feature improvements to connectivity and logging. P50-368v5.0 Software Download
Complete Guide: P50-368V5.0 Software Download & Installation P50-368V5.0 Provide your device serial number