2018/10/15

3 Methods to Program BMW EWS4 Key without Soldering

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.
bmw-ews4-immo-box
ews-adapter
The EWS4 IC adapter can be used with R270/R280/Xprog/AK90 etc.

Method 1:
Program EWS4 key with AK90+/AK91 & EWS4 adapter 
Remove EWS4 immo box
Connect EWS4 board to EWS4 adapter and AK90 key programmer
ak90-bmw-ews4-key-1

ak90-bmw-ews4-key-2

ak90-bmw-ews4-key-3
ak90-bmw-ews4-key-4

ak90-bmw-ews4-key-5
Select MCU 2L86D and Read EWS
ak90-bmw-ews4-key-6
Read data success and save data
ak90-bmw-ews4-key-7
ak90-bmw-ews4-key-8
EWS Analyse
ak90-bmw-ews4-key-9
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
r270-bmw-ews4-key-1
r270-bmw-ews4-key-2

r270-bmw-ews4-key-3
Open R270 in-circuit programmer software
Select correct MCU: 2L86D
r270-bmw-ews4-key-4
Press Read
Software requests to check pin state
Press YES
r270-bmw-ews4-key-5
Pin check and MCU correct
r270-bmw-ews4-key-6
Press Yes and read begins
r270-bmw-ews4-key-7
Save dump file (file containing rolling key codes)
r270-bmw-ews4-key-8
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-bmw-ews4-key-1
ad900-bmw-ews4-key-2
Software opens correct module 063 for BMW EWS4
ad900-bmw-ews4-key-3
Key slot 1 to 4 are listed
To avoid manufacturer conflict, select highest available slot 4
ad900-bmw-ews4-key-4
Insert blank 7935 transponder into AD900 and press Program button
ad900-bmw-ews4-key-5
Data is sent to the AD900
Transponder is produced to start vehicle
Then reinstall EWS4 immo box back to vehicle.

Method 3: Program EWS4 with vvdi prog
Read EWS4 EEPROM with VVDI Prog using Xhorse EWS4 adapter
Xhorse ews4 adapter can be used with vvdi-prog only. 
Then program key with VVDI2 BMW key programmer.
Reference blog:
How to make BMW EWS4 key with VVDI Prog & EWS4 adapter

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