1. Turn on the player and enter the main interface.
2. Format the USB flash drive/MIRCO SD card into a FAT32 partition
3. Place the upgrade file in the root directory of the storage, and the file name (HCFOTA_rld_2025-09-16-09-10-43_uupdate.bin) cannot be changed.
4. Connect the storage to the player and prompt to unplug the storage when upgrading to 100%.
After the upgrade is completed, you can see the version in the settings.
6. Delete the upgrade files from the storage on the computer. If not deleted, the upgrade will be performed again the next time it is accessed.