The target media (usually a USB drive or SD card) typically needs to be formatted to FAT32 or exFAT to be readable by the hardware.
The most critical risk is a power loss during the flashing process, which can "brick" (permanently disable) the hardware. COS_RO3DLCJS_update.rar
The extracted files (often including an .img , .bin , or update.inf ) must be placed in the root directory of the drive, not inside a folder. The target media (usually a USB drive or