The golden age of Huawei router modding (2018–2021) has passed, but the B311-221 remains one of the last easily unlockable Balong devices. If you find one on eBay with old firmware, grab it.
To check the current firmware version of your Huawei B311-221 router: huawei b311-221 firmware
Disclaimer: Modifying your router’s firmware may void warranty, violate your ISP’s terms of service, or brick the device. This post is for educational purposes. Proceed at your own risk. The golden age of Huawei router modding (2018–2021)
Enable in the settings to allow the router to detect and install new versions automatically during idle periods. Key Firmware Features & Specifications This post is for educational purposes
The B311-221 is essentially a mini Linux computer. Its firmware is a modified OpenWrt/Derivative running on a custom HiSilicon SDK.
| 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 |