User's Manual

6. Firmware Upgrade

● Firmware upgrade is needed to keep the product up-to-date.

1. Download the latest YUF file from our web page.

2. Connect the product to your PC.

3. Copy the downloaded YUF file to the root directory of the product.

4. After removing the product safely from your PC, turn the product on again.

5. Firmware upgrade begins to progress as the player boots.

(!) Since the player needs to be powered on for firmware upgrading, please be sure to have it fully charged before

starting the firmware upgrade.

(!!) Do not turn off the device while processing the firmware upgrade, it may cause the program error.

7. Mode Switch

Press the

<Mode Change> button briefly to switch the mode.

(Select from MP3 or FM modes to change to.)