(do not use WiFi during flashing).
The "s" variant is just a different plastic casing; internals are identical. Yes, this firmware works on all B312926 sub-models (including B312-926, B312-926s, and B312-926H). huawei b312926 firmware 10031h192sp9c00 universal updated
Open the HUAWEI AI Life App on your phone while connected to the router's Wi-Fi. (do not use WiFi during flashing)