HomeHuawei Firmware Download firmware Huawei E5330Bs-6 update 21.210.13.00.21 Three United Kingdom GSM Solutions 07 March Download firmware Huawei E5330Bs-6 update 21.210.13.00.21 Three United Kingdom firmware Details File size: 17.09 MB Version: 21.210.13.00.21 Operator: Three United Kingdom Operating systems: Windows 7/8/10/XP/Vista Download