| Version String | Key Features | Known Quirks | |----------------|---------------|----------------| | | Stable GPON, basic IPv6, legacy web UI | No Wi-Fi 5 beamforming; VOIP registration can be slow | | V500R019C30S050 | Improved bridge mode, better UPnP | Some ISP profiles break IGMP snooping for IPTV | | V500R020C10S100 | New GUI, hardware NAT acceleration, WPA3 support (limited) | Higher RAM usage; requires more frequent reboots | | V500R020C10S150 | Fixed bufferbloat issues, TR-069 improvements | Telnet disabled by default | | V500R021C00S100 | Latest as of 2025, full IPv6, cloud management | May lock to a specific OLT vendor |
To avoid a headache, run through this checklist: echolife eg8145v5 firmware