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Pioneer AVH-4000NEX Firmware Update Manual page 3

System firmware update instructions

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3. Copy the "AVIC5000NEX" folder onto the storage device. Ensure that the "AVIC5000NEX" folder is

located within the root (top) folder of the storage device. There should be no other files within the

storage device.

4. Insert the SD card into the SD card slot or connect the USB storage device to the USB port 1 of the

receiver.

5. Set the audio source on your unit to "OFF".

6. Press the HOME button to display the Top menu screen.

7. Touch the keys below in the following order.

The "System" screen appears.

8. Scroll down the list.

9. Touch [System Information].