Why does heating not repair the FX?
A damaged memory can react to temperature, so a temporary start after heating is sometimes mistaken for a repair. The symptom may return once the unit cools down. Do not heat the radio with a hairdryer or heat gun — let us know whether its behaviour depends on temperature.
If we confirm memory damage, we replace the faulty components with new chips designed for use in a car. The scope of work depends on the diagnostics of the specific unit.
How do we check the FX after repair?
Seeing a picture appear does not end the test. We check the unit’s start-up, its functions and current draw. On a bench with a cluster and BCM module, we check the response to ignition, illumination and diagnostic communication.
In your enquiry, please also describe symptoms that occur only after standing or at a specific temperature. This allows us to take them into account when checking the unit.
Repairing your own radio or buying a used one?
Before buying a replacement, compare the full part number and the trim specification. A similar panel does not guarantee compatibility with the car, and a used FX may have the same memory fault.
It is worth first assessing whether your own unit can be repaired. If you do not know the PIN code, tell us before sending it — we will determine what is needed to test and restart the radio in the car.