AK91 key programmer 4.00 vs. AK90 key programmer 3.19

AK91 Plus BMW Key Programmer not only supports EWS2.1/EWS2.2/EWS3/EWS3.3/EWS4/EWS4.4, but also adds key information identification function of the new F series CAS4/CAS4+/ new for Porsche; support reading frame number, key state, KM data.


AK91 Plus supports E series PCF7945 chip, F series CAS4/CAS4+ factory and the original factory PCF7953 chip refresh function (restore to a new key state); no need to disassemble the chip free, safe and efficient.

Auto key Programmer AK91 Plus KEY-PROG increased by 1995-2009 in all EWS read the key information functions; improved some of the EWS to read and write speed.

AK91 Plus support BMW E series PCF7945 chip, F series CAS4/CAS4+ factory and the original factory PCF7953 chip refresh function
(restore to a new key state); no need to disassemble the chip free, safe and efficient.

AK91 Plus BMW KEY-PROG from CnAutotool can read the key information on all BMW EWS 1995-2009. It speeds up the EWS reading & writing.It is safe and effective BMW EWS key programmer

BMW AK91 Plus Key Programmer Function
1. Directly reading data dumps from MCU which marked 1D47J,2D47J,0D46J,2L86D without removing MCU from circuit board,easy to do yourself.
2. With the help of software you can change VIN,Mileage and renew,lock or unlock keys as well.
3. Programming original chips “EML 10030A” for making keys .
4. Identifying keys for all EWS ,showing VIN,key No. and mileage .

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