How to select 802.11b or 802.11g on B525s-23a?

Hello, everybody!

This post enquires about the procedure of how to select 802.11b or 802.11g on B525s-23a. Please see more details below.

Source: http://www.e-winkyzg.com/sale-10791957-huawei-b525s-65a-4g-lte-cat6-wireless-router-up-to-300-mbps-download-speed-with-sim-card-slot.html

ISSUE DESCRIPTION

I need to select either 802.11b or 802.11g in the menu configuration of the router, but, even as this router model works on 802.11a/b/g/n/ac, I am not able to find the right way to do it, so my mobile phone can not connect to the WiFi network.

The SW version of my router is 11.187.61.00.1217 and the HW version is WL1B520FM. There are no pending updates.

Thank you very much for assisting me in providing me with the procedure of how to select 802.11b or 802.11g on B525s-23a.