: The software allows you to toggle between internal antennas and external SMA-connected antennas, which is vital for users in rural areas with weak signals. The "Unlocking" Factor

Need the exact file? Search for: Huawei_B310s-518_V5_21.329.01.03.112_Update.bin on trusted Huawei forums.

"Technical support, this is Sarah, how can I help—"

Do not check “Lock all bands” – it can cause a disconnect loop.