Guide on Yanhua ACDP Renew the eeprom data of CAS1 – CAS4

Free update! Yanhua Mini ACDP can renew the eeprom data of CAS1 – CAS4, this post is on how to operate it.
CAS1 (0K50E) eeprom data renew
CAS2 (2k79x) eeprom data renew
CAS3  (0L01Y/0L15Y/0M23S) eeprom data renew
CAS4 (1L15Y / 5M48H /1N35H) refresh & coding by ICP.

Images mean a lot:
1.CAS1 (0K50E) renew

2.CAS2 (2k79x) renew


3.CAS3 (0L01Y/0L15Y/0M23S) renew

4.CAS4 (1L15Y / 5M48H /1N35H) ICP renew.


Yanhua Mini ACDP BMW eeprom data renew functions :

Renew the EEPROM data of CAS1-CAS4. New EEPROM data can be generated by loading EEPROM data of other cars, modifying vehicle frequency, VIN, ISN code and other info, to solve the problem of replacement a CAS module because of missing EEPROM data of CAS module or failed reading EEPROM data of CAS module.

Step 1:
Prepare the EEPRON data for the corresponding chip model and copy the data to the APP path: “:/ Atmatch/bmw/CAS4/CAS_Renew’, then select the corresponding EEPROM file for parameter calculation.


Step 2
Enter the VIN number, vehicle frequency, ISN code, etc that need to be modified, modify the loaded data and save it, the Key Programmer Mini ACDP will automatically clear the CAS mileage.


Step 3
Write the saved new EEPROM data to the CAS module, then load the CAS module

Step 4
After the module is loaded, if the vehicle cannot be started, or the “Direction lock” is displayed on the meter, please synchronize the ELV or DME according to the situation.

Step 5:
Use professional equipment to clear the trouble codes of the vehicle.

The original car key is invalid and you need to relearn the new key to start the car.


Step by Step Guide on Yanhua ACDP Clear BMW EGS ISN

Yanhua Mini ACDP authorize new function on BMW EGS ISN clearing.So here UOBDII want to share this step-by-step guide for you.

Related Contents:

Yanhua Mini ACDP Read BMW MSV80 DME ISN

Yanhua ACDP Mini No Need Soldering BMW DME ISN Code Support List

CGDI BMW EGS ISN Clear and Synchronize Guide

What You Need?

Yanhua ACDP Basic Moduel

Clear EGS ISN Authorization for Yanhua ACDP

EGS module


Step 1:Build Connection between BMW EGS and Yanhua Mini ACDP Programmer.
Note:There are 3 methods,please choose according to your situation.

Connection Method 1:
Connect the 8HP end of the EGS interface board to the EGS module interface

Note:Aim the label point of the 8HP end of the interface board with the label point of the EGS interface during installation.

Short the CAN termination resistor on the OBP+ICP adapter to the “CAN-R-Join” terminal


Note:Short the jumper cap to the “CAN-R-Join” end according to the marked position.
Connect the ACDP,OBP+ICP adapter,EGS interface board and EGS module


Connection Method 2:
Connect ACDP with vehicle OBDII port


Connection Method 3:

Connect ACDP to EGS interface according below diagram


Step 2:Clear BMW EGS ISN

Run Yanhua ACDP software and enter the menu to select “Clear EGS ISN”

Select “Clear ISN”,or if you have and problem please check the “Help” option