Note: Some heavily locked carrier versions require a physical hardware method ("shotpoint" or shorting two pins on the internal motherboard) to force the router into USB bootloader mode before firmware can be written. Troubleshooting Common Issues
Specific firmware versions enable the B525 to better handle Carrier Aggregation , which combines multiple bands for higher speeds. Huawei B525s-23a Firmware
Adds support for Voice over LTE and L2TP/PPTP VPN clients. Note: Some heavily locked carrier versions require a
Example: Bands 3 (0x8), 7 (0x80), 20 (0x80000) → Hex sum = 0x80088 → Decimal = 524424. Huawei B525s-23a Firmware