Blue&Me Module Revision Mito Giulietta

Typical Defects:
Bluetooth does not work, does not connect with the mobile phone
The kilometers flash on the instrument panel
The USB stick does not work
The battery tends to discharge abnormally, especially after short periods of inactivity
The steering wheel controls do not respond or work partially
The hands-free system stops working
Unable to perform proxy alignment
Does not enter diagnostics

Error Codes:
147164 - Generic error
147180 - Generic error
147188 - Generic error
147210 - Generic error
147216 - Generic error
147247 - Generic error
147252 - Generic error
147268 - Generic error
168689 - Generic error
168697 - Generic error
168699 - Generic error
168702 - Generic error
168703 - Generic error
168713 - Generic error
168715 - Generic error
168731 - Generic error
168743 - Generic error
47204 - Generic error
B1005 - Diagnostic sensor unit
B1039 - Dynamic control selector input
B10AA - Proxy configuration control
P0022 - Convergence node control unit
U1602 - CAN bus line error, off/intermittent
U1701 - Communication error with body computer
U1707 - Info-telematics control unit/Convergence control unit
U1733 - Communication with telematics system, missing message

The Blue&Me with OE code 50521871 è a multimedia module of second generation., known internally as Lauberhorn. È was installed on the Alfa Romeo Giulietta and Alfa Romeo Mito produced between 2010 and 2013, before the transition to the Uconnect system.

It is part of the Blue control unit family&Me standard, that is, without an integrated satellite navigation system. The module è produced by Magneti Marelli and features a structure compatible with other codes in the same series, such as the 50521292, based on the’equipment and the’year of production.

DIPA canò intervene to review this module as well.

Main technical specifications:

• Flash memory NW140
• Connector with 7 pins
• Bluetooth 2.0 + EDR, compatible with profiles hands-free (HFP) and phonebook access (PBAP) – does not support A2DP
• USB Port 2.0 for connecting media players
• AUX Input available on equipped versions
• Compatibilityà improved with smartphones and updated hands-free systems
• Problem of’echo in conversation resolved compared to the first generation

Common defects of the Blue control unit&Me 50521871

Over time, the OE control unit 50521871 has shown various technical issues, particularly due to corruption of the internal NAND memory and instabilityà of the firmware. These malfunctions compromise connectivityà, the’interaction with the instrument cluster and the’reliabilityà general of the infotainment system.

Typical faults detected:

1. No startup and disappearance of the Blue logo&Me

The system does not start or remains stuck. Problem attributable to firmware crash or corrupted memory.

1. Non-functional USB

The USB port does not recognize devices and mayò not even provide power. Often a symptom related to firmware issues.

1. Absent or unstable Bluetooth

The control unit mayò overheating, deactivate the Bluetooth module or cause intermittent connections.

1. Error messages on the display’Error messages on the display

Reports “Blue&Me Unavailable” or “Error Blue&Me” indicate software issues or failure to update the module.

1. Abnormal battery discharge

The module remains powered on even with the key removed, causing abnormal drain and discharges within a few days.

1. Firmware not updatable

The procedure from USB stick mayò fail completely, especially on firmware starting from version 5.X with damaged NAND.

1. Flashing km on the dashboard

Symptom of proxy misalignment or interruption in communication between control units.

1. Malfunctioning steering wheel controls

The controls may not work due to physical wear or electronic malfunction related to internal memory.

1. Diagnosis access not possible

In the event of a serious fault, the module mayò be undetectable by diagnostic tools.

Frequent fault symptoms

The Blue module&with OE code 50521871, if damaged, mayò exhibit the following operational symptoms:

• Bluetooth not functioning or not connectable
• Flashing km on the instrument panel
• Non-operational USB port
• Abnormal battery drain when the vehicle is stationary
• Non-responsive steering wheel controls
• Hands-free not active or absent
• Proxy misalignment
• Inabilityà to access with the diagnostic tool

Associated error codes

When there is a fault in the Blue control unit&Me OE 50521871, the electronic diagnosis canò return one or moreù of the following alerts:

Generic codes:

• 147164, 147180, 147188, 147210, 147216
• 147247, 147252, 147268
• 168689, 168697, 168699, 168702, 168703
• 168713, 168715, 168731, 168743
• 47204

Specific errors:

• B1005 – Unità diagnostic sensor
• B1039 – Dynamic control selector input
• B10AA – Proxy configuration error
• P0022 – Anomaly in Convergence control unit node
• U1602 – CAN bus line error, off/intermittent
• U1701 – Incorrect communication with body computer
• U1707 – The info-telematics control unit is unresponsive.
• U1733 – Missing message from the telematics system.

Conclusion

The Blue control unit&Me OE 50521871 represents one of the most common revisions of the second generation Alfa Romeo multimedia modules.ù

DIPA supports customers throughout the entire relationship phase, from’order to’after-sales support. Itò can intervene to review these components and restore them to full functionalityà, saving on replacement costs and benefiting the’environment thanks to’circular economy.