Every 6 months. Given the age of the device, more frequent checks are unnecessary.
This risk underscores the delicate balance between stability and innovation. Many online communities, such as the Philippine Mobile Network forums, have developed custom firmwares that add features like VoLTE support or advanced firewall rules. While these modifications can transform the B311 into a enterprise-grade router, they void the warranty and require technical expertise. A user who naively flashes an unstable beta firmware may find their internet connection dropping every few minutes. Therefore, the wise approach is to treat B311 firmware with respect: only apply updates sourced from trusted, verified repositories, and always keep a backup of the current working configuration. huawei b311 firmware
Carriers often lock OTA updates. If your router is from Vodafone, T-Mobile, or Telstra, the OTA check may return "No updates" even if newer firmware exists. Every 6 months
Your router will automatically restart during this process, and internet access will be temporarily unavailable. HUAWEI Global HUAWEI LTE Cat.4 WiFi Router (B311-221) - wifi-stock.com Many online communities, such as the Philippine Mobile
Fixes for critical vulnerabilities (e.g., Linux kernel exploits) that could compromise your network.