Mercedesbenz — Errorb1fbd54 Work
If you have spilled coffee or soda onto the center console (where the wireless charging pad and NFC reader live), residue can short the communication line. The module may still power on but reports "missing calibration" because it cannot complete its self-test.
For some drivers, an easy first step is to perform a "hard reset" of the infotainment system. This is not a guaranteed fix, but it can sometimes clear minor software glitches. mercedesbenz errorb1fbd54 work
While less common for this specific code, a damaged LVDS cable can prevent the system from successfully completing a calibration cycle. How to Fix Code B1FBD54 If you have spilled coffee or soda onto
Disclaimer: This article is for informational purposes. Always consult a certified Mercedes-Benz technician for final diagnosis. Part numbers and procedures may vary by model year and market region. This is not a guaranteed fix, but it

