When the 3555 unit is not recognized after installation, several troubleshooting steps have proven effective:
Genuine Autocom/Delphi units were prohibitively expensive for many hobbyists and small workshops, costing thousands of dollars/pounds/euros. This created a massive market for "clones" – unofficial copies of the hardware. However, quality varied wildly. You could get a cheap, unreliable unit that would constantly lose connection or fail to update.
(Bluetooth) is a multi-brand diagnostic scanner designed to interface with a vehicle's onboard computer via the . The "3555" serial number distinguishes it as a specific hardware revision often favored for its stability and compatibility with various software versions.
, a Bluetooth-enabled vehicle diagnostic tool often used by DIY mechanics and independent repair shops. Device Identification : Autocom CDP BT (Bluetooth Version). Serial Number : 3555.
The 3555 serial number appears almost exclusively on clone hardware rather than original Autocom units. As one experienced forum member noted: “The interface is not an original, but a china clone, the serial number of 100251 gives that away, but it will work with the latest 2020 autocom”. While the 100251 serial definitively indicates a clone, the 3555 serial occupies a gray area—it is consistently described as “clone” hardware in technical discussions.
Here is a simplified guide to get your 3555 up and running at its peak performance, based on advice from the top users in the community.
Dual connectivity using USB or Bluetooth (BT).