Yanhua Mini ACDP Module 1 – BMW CAS1 to CAS4+ Key Programming & Odometer Reset
Supports BMW Key Programming across all series, offering comprehensive immobilizer and mileage correction capabilities for a wide range of BMW CAS systems.
CAS1–CAS3+ Module Features
- Key Programming via OBD
- Read CAS EEPROM
- Add new keys
- Reset mileage
- Back up or recover CAS data
- Recover access in All Keys Lost scenarios
CAS4 / CAS4+ Module Features
- Read CAS4 EEPROM without soldering or welding
- Add keys without soldering or welding
- Reset mileage without soldering or welding
- Back up or recover CAS without soldering or welding
- Support for All Keys Lost situations without soldering or welding
BMW CAS1–CAS4+ Mileage Programming
- No need to remove the chip
- No soldering required
- No need to cut wires
- No need to lift pins
Yanhua Mini ACDP Module 1 Update (November 15th, 2019)
CAS4/CAS4+ OBD read/write function released — now supports non-invasive operations with no soldering and no risk to the ECU.

Yanhua Mini ACDP Module 1 – Adapter List
| Item No. | Adapters / Parts | Pictures | Quantity | Adapters / Parts Functions |
|---|---|---|---|---|
| 1 | BDM01 adapter | ![]() | 1 PC | Applicable to decrypt BMW CAS EEPROM |
| 2 | BDM-ICP Cable | ![]() | 1 PC | Used with BDM01 adapter to read and write data |
| 3 | BMW-CAS3 Interface board | ![]() | 1 PC | Applicable to connect CAS3/CAS3+ test points. Used with BDM01 adapter |
| 4 | BMW-CAS4 Interface board | ![]() | 1 PC | Applicable to connect CAS4/CAS4+ test points. Used with BDM01 adapter |
| 5 | BMW-CAS4 Interface board Buckle | ![]() | 1 PC | Applicable to fix BMW-CAS4 interface board and CAS board |
| 6 | CAS3 Copper pillar Package (M2.5*12+6mm) | ![]() | 6 PC | Applicable to fix BMW-CAS3 interface board |
| 7 | CAS4 Copper pillar Package (M2.5*12+6mm) | ![]() | 6 PC | Applicable to fix BMW-CAS4 interface board |































































