Settings - How to change your WiFi's name (SSID) and password
This is rare. It means you entered a wrong code 10+ times. The baseband is locked. Professional services can still fix this using a "bootloader JTAG" method, but it costs ~$50. Honestly, it may be cheaper to buy a used unlocked unit. how to unlock huawei b535-932
Ensure the service specifically supports the B535-932, as standard Huawei codes may not work. Settings - How to change your WiFi's name
Run as administrator on Windows.
You need to find "Generic" or "Unbranded" firmware for the Huawei B535-932. This firmware removes the carrier-specific restrictions. but it costs ~$50. Honestly