Good afternoon, Community!
This post enquires about the procedure of updating firmware on B525s-23a. Please check below for more details.

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.htm
ISSUE DESCRIPTION
I have a Huawai router model B525s-23a and after researching on the Internet, I have found there is a new firmware version B525s-23a_UPDATE_81.191.05.00.801-sec.
The current firmware of my router is 11.189.63.00.1217.
I tried running the update from the update page of the router, but got the message that the update failed. Can anybody give me instructions on how to do it?
Thank everybody in advance for the help on updating firmware on B525s-23a.