Huawei B311-221 Firmware [portable] May 2026

iptables -t mangle -I POSTROUTING -o wwan0 -j TTL --ttl-set 65 iptables -t mangle -I PREROUTING -i wwan0 -j TTL --ttl-set 65 Save it with iptables-save > /etc/iptables.rules . Edit /etc/dnsmasq.conf :

The Huawei B311-221 is a popular LTE Cat6 router, often nicknamed the "4G Smart Hub." It’s the go-to device for home broadband in rural areas, campervans, and failover setups. But like many ISP-locked routers, its potential is often crippled by restrictive firmware. huawei b311-221 firmware

| Variant | Lockdown Level | Hidden Features | |-------------------|---------------|--------------------------------------------| | | Low | Full band selection, TR069 can be disabled | | UK (EE/Three) | Medium | Custom APN lock, no bridge mode | | Australia (Telstra) | High | Forced TR069, no band locking, custom DNS hijack | | Asia (Globe/Smart) | Medium | SMS over web UI removed, battery disabled | iptables -t mangle -I POSTROUTING -o wwan0 -j