Research thoroughly
Prefer non-invasive options first
If flashing is needed, proceed cautiously huawei b535-232 custom firmware
Post-flash checklist
In crowded tower areas, your router might jump to a congested tower. Custom firmware allows you to lock to a specific Physical Cell ID (PCI). Enter the PCI of the tower you see in http://192.168.1.1/html/home.html → Device Information. Research thoroughly
Different revisions require different methods: Prefer non-invasive options first
You will know you are in HL mode when your PC detects a "Huawei B535-232 Serial" device.
