The firmware file should usually end in .img . If it is a .zip file, extract it to find the .img file inside.
If an update is available, follow the on-screen prompts to download and install. the device during this process. 2. Manual USB Update mecool kt1 firmware
If you're experiencing issues with the device's built-in update feature, you can use the Mecool KT1 firmware upgrade tool: The firmware file should usually end in