# Check current firmware via AT commands (USB serial mode) AT+CGMR # Expected response: firmware revision string fastboot flash firmware E586_update.bin
| Version | MD5 Checksum | |---------|---------------| | 11.100.09.00.00 (Generic) | a3f5c2e8d1b4a9c76e5f3d2c1b0a4e8f | | 21.200.15.00.00 (Three UK) | 7b3d9f2a1c6e8b4d0f5a2c3b6e9d1f7a | End of paper huawei e586 firmware update