Two identical reads support repeatability of the reading process. They do not establish that the stored configuration belongs to the vehicle or that its contents are logically valid.
What to check next
Compare the symptom history, module identity and authorised configuration information. Keep read verification separate from application checks such as coding, adaptations and supported security pairing. A repair can require more than reproducing an existing file accurately.
Useful information for an enquiry
Include whether the fault followed a donor-module fitment, previous clone or programming attempt.
Data belonging to another vehicle should not be treated as a universal replacement. Compatibility and ownership requirements still apply.
Speak to AXION
For module programming and coding support, send your vehicle details and fault report. Workshop assessment is in Didcot, Oxfordshire. Suitable postal or remote work is confirmed before booking.
Technical background from STMicroelectronics. The referenced design explains the principle; the vehicle-specific procedure determines the repair.
Related reading — Secure boot can reject software that was transferred successfully. Browse all vehicle-electronics diagnostic notes or return to the repair library.