Note:
In this case, no rear camera is connected to the ESX device, but its function is activated in the ESX device. When reversing, the image of the rear camera is normally transferred, but since this is not available, the ESX device shows only a blue screen.

Remedy:
Disable the "CCD" option under APPS -> OPTIONS -> DISPLAY.

Remedy:
Disable the pause function under "Apps" >"Options" >"Display" >"Pause media whilst reverse".

Reason:
Due to the increased utilization of the navigation application, it is possible that the device does not respond to a quick touch. This problem may appear with OS Version 1.55 or 1.55-U1.Check the OS version under “Apps” > “Option” > “System”.

Remedy:
Proceed an OS Update to the latest Version. You will find it in the DOWNLOADS section.

Alternatively:
Enable under "Audio" > "Advanced" > "Key beep" and press and hold the desired Button for about one second. Thus you have the acoustic control if your command has been registered by the device.

Remedy:
Depending on the size and data on the stick, it may take longer to read it out under certain circumstances. During this reading time, a possibly existing LED on the stick is flashing up. Wait until the reading is completed. Delete unnecessary or not compatible files on the stick to speed up the reading.

Remedy:
To delete user files such as images or videos, please use the file manager (files) as described in the user manual.

Note:
These devices cannot be reset to the "factory setting".

Reason 1: Wrong Software. The ESX device is only compatible with the original factory radio CD400

Remedy: For a use with the CD300, an update is necessary. Contact your dealer or the ESX Support.

Reason 2: Installation failure

Remedy: Take care on every single step from the installation guide. The original display must remain in the car.