Yanhua Module 38 Update BMW BDC2 Reflash and Replace Functions

In our previous article, we introduced the new IMMO data erase function for BMW BDC2 modules added in the VAPON VP100 key programmer (V2.07). Today, we’re highlighting another powerful tool — the Yanhua ACDP Module 38, which now also supports BDC2 module reflash, data copy, and replacement functions. Both devices can add keys and erase data for BMW G-Series BDC2 module perfectly.

Yanhua Module 38 Free Upgrade:

(Used with Mini ACDP2 and Module 38)

1.Added BMW BDC2 Module Reflash Function

• Unlock second-hand BDC2 moduleand erase it to unlocked

2.Added BMW BDC2 Module Copy & Replacement Function

• Back up IMMO data from the original BDC2 module and a working key.
• Write IMMO data to a second-hand orbrand new BDC2 module.
• No need to handle TCM or DME modules—dealer key ordering remains unaffected.

How to Access:

To perform this function, need to use OBD extension cable to connect Yanhua ACDP2 and the OBDII port of vehicle correctly

Menu Path:
Navigate to BMW-> FEM/BDC-> IMMO/Mileage-> BDC2 ICP+OBD (F/G Chassis)-> Module Replace

• To replace a module: Select "Copy Data Replace"
• To reflash a module: Select "Erase Module Data"

Step-by-Step Process of Copy Data Replace:

Step 1: Back Up Data from Old Module

• Back up FAFP data
• Back up IMMO data

Step 2: Write Data to New Module

• Back up Coding data
• Write IMMO data

1. New or empty modules
2. Used unemptied modules
   • Write FAFP data
   • Write Coding data

Read also:

Yanhua ACDP Module 38 Add BMW G Chassis BDC2 Key on Bench