A. Downloading the Firmware Update Files
1. Download the firmware update files by clicking on the following link and finding your product:
http://bit.ly/1E5UspI
2. Extract the download file.
The Downloaded zip file will produce the following file when decompressed:
“
PEH447C.AVH
”
B. Updating the Firmware on Your Unit
IMPORTANT
DO NOT perform this firmware update on any other model than AVH-X7550BT
Ensure that the update file is located within the root (top) folder of your USB storage device. There should be
no other files within the USB storage device.
While your unit is being updated, DO NOT turn off the system’s power and DO NOT touch the unit’s touch-
screen as this may result in severe damage to your unit.
DO NOT remove the USB storage device during the firmware update process.
Disconnect any external mobile devices that are currently connected to your unit.
PROCEDURE
1. Connect a blank (formatted) USB storage device to your computer, and then locate and copy the
PEH447C.AVH file onto the USB storage device.
2. Start the vehicle engine.
3. Connect the USB storage device to the USB input on your unit.
4. Press the [Home] button.
5. Touch the [AV source] & touch [Off] to source Off
.
*This picture shows typical region source. It’s not complete same your region.