Older firmware versions may suffer from memory leaks, random reboots, or Wi-Fi drops. New updates patch these bugs, ensuring your connection remains solid for hours or days on end.
Most OTA updates preserve settings, but it’s best to back them up (Screenshots of APN, port forwards, etc.). Manual updates often require a factory reset. huawei b311221 firmware updated
Historically, every 4–8 months. However, as 5G becomes mainstream, 4G routers receive fewer updates. The latest builds focus on security and carrier tweaks rather than new features. Older firmware versions may suffer from memory leaks,