`./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456`
* When using a **[culfw][]**-based device (**[CUL][]/[COC][]/...**), flash
the new firmware to the device with serial *KEQ0123456*:
`./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456`
* When using a **[culfw][]**-based device (**[CUL][]/[COC][]/...**), flash
the new firmware to the device with serial *KEQ0123456*: