| Error Code | Meaning | Fix | |------------|---------|-----| | MCAST_E01 | No IGMP join response | Check ip igmp snooping querier on L3 switch | | MCAST_E34 | CRC mismatch after 3 retries | Bad RAM on target – replace B593s22 | | MCAST_E89 | Flash write timeout | Some devices have bad blocks; run nand scrub via serial | | MCAST_E112 | Signature invalid | Re-sign firmware with Huawei private key (or patch bootloader) |
To ensure the tool works correctly, you must manually configure your computer's network adapter to communicate with the router's bootloader: b593s22 multicast upgrade toolexe
Verify that the version of Tool.exe you are using supports the B593S22 device and the desired multicast upgrade. | Error Code | Meaning | Fix |
The is a 4G LTE CPE router. It supports multicast firmware upgrade – a method where firmware is broadcast over the local network via UDP multicast, and the router listens for it in a special recovery/bootloader mode. : The computer is assigned a static IP
: The computer is assigned a static IP address, and the B593s-22 is connected directly via an Ethernet cable.