Firmware upgrade method of eMMC (Embedded Multi Media Card), device and storage device

The present invention discloses a firmware upgrade method of an eMMC (Embedded Multi Media Card), a firmware upgrade device of the eMMC (Embedded Multi Media Card) and a storage device. The firmware upgrade device comprises an eMMC; and the firmware upgrade device is connected with an FOTA (Firmware Over-The-Air) server. The firmware upgrade method includes the following steps that: to-be-upgraded firmware information is acquired from the FOTA server; the to-be-upgraded firmware information is compared with the firmware information of the eMMC; if the to-be-upgraded firmware information is inconsistent with the firmware information of the eMMC, the eMMC is instructed to enter an FFU (Field Firmware Update) mode; and a to-be-updated firmware package is downloaded from the FOTA server, and the to-be-updated firmware package is written into the eMMC in the FFU mode. The firmware upgrade method of the eMMC of the present invention is convenient and practical. 本发明公开了种eMMC的固件升级方法、固件升级设备及存储装置。固件升级设备包括eMMC，固件升级设备能够连接