Firmware upgrade manual for NR411

1. Switch OFF the device.

2. Unzip downloaded file to SD card (up to 2GB formatted in FAT filesystem), insert card to the

device.

3. Connect device to charger.

3. Press „RESET” button.

4. Switch ON the device

5. Upgrade starts, all is done automatically.

6. When asked "INSTALL NOW?" answer "NO".

7. Take out the SD card.