How to perform a firmware update using a MicroSD card.
Detailed instructions for this procedure are documented in the Appendix of the EAN-Firmware Upgrade Utility.
Before updating the firmware, the MicroSD card must first be formatted using the MiniTool Partition Wizard tool available on the MiniTool Solution website.
A MicroSD card reader is also needed for this procedure. If your PC does not have a built-in reader, use an external USB MicroSD card reader.