How to Program EWS4 Key with AK90 or R270 Programmer

As titled, here obdii365.com introduces 2 methods to program BMW EWS4 (EWS4.3 & EWS4.4 transponder) using BMW EWS-4.3 & 4.4 IC adapter adapter without soldering.

ews-43

bmw-ews-43-44-ic-adaptor-display-4

Method 1:

Program EWS4 key with AK90+/AK91 & EWS4 adapter 

Remove EWS4 immo box

Connect EWS4 board to EWS4 adapter and AK90 key programmer

bmw-ews-ic-adaptor-for-ak90-1

bmw-ews-ic-adaptor-for-ak90-3

bmw-ews-ic-adaptor-for-ak90-2

ak90-ews4-key-1

ak90-ews4-key-2

Select MCU 2L86D and Read EWS

ak90-ews4-key-3

Read data success and save data

ak90-ews4-key-4

ak90-ews4-key-5

EWS Analyse

ak90-ews4-key-6

You should be at the main screen with all the numbers and letters on, place your virgin/new key into the slot on the AK90 and select write key

Select the slot and select write key you will get a warning making sure that you have placed key in slot just select yes

After aprox 1-2mins you should see confirmation that the keys data is coded

Put EWS4 unit back to car.

 

 

Method 2:

Read dump with R270 & Write key with key programmer

Again remove EWS4 immo box

Connect EWS4 board with EWS4 adapter and R270 BDM programmer

bmw-ews-ic-adaptor-for-r270-1

r270-ews4-key-1

r270-ews4-key-2

Open R270 in-circuit programmer software

Select correct MCU: 2L86D

r270-ews4-key-3

Press Read

Software requests to check pin state
Press YES

r270-ews4-key-4

Pin check and MCU correct

r270-ews4-key-5

Press Yes and read begins

r270-ews4-key-6

Save dump file (file containing rolling key codes)

r270-ews4-key-7

Open your key programmer software, i.e AD-900 pro or other programmer can be loaded dump file

Select EEPROM and upload bin file read by R270

ad900-ews4-key-1

ad900-ews4-key-2

Software opens correct module 063 for BMW EWS4

ad900-ews4-key-3

Key slot 1 to 4 are listed

To avoid manufacturer conflict, select highest available slot 4

ad900-ews4-key-4

Insert blank 7935 transponder into AD900 and press Program button

ad900-ews4-key-5

Data is sent to the AD900
Transponder is produced to start vehicle

Then reinstall EWS4 immo box back to vehicle.

3 Ways to Program BMW EWS4 Key using EWS4 Adapter

Copy Protected by Chetan's WP-Copyprotect.