Description:

OEM KEY REMOTES
Advantage:

1.Low cost
2.This key can be reused (10000 matches) withoutdamaging.
3.Do not need to replace the components will beable to freely choose the remote frequency(315MHZ&433MHZ)
4.Matching simple, simply remove the 24C02 can,without the use of a dedicated programmer
5.Remote distance (15-30 meters) is better thanthe original key

OEM KeyExplain 

The OEMKey applicable since 2000 DAS3 Mercedes car driving licensesystem

(support  1999-2011 of havings speed W series

red outside the key data be born.Support new style(NEC) electronics lock head W221,

W164,  W212,  W204 ,   w169;support(MOTOROLA) the series of Motorola MCU; W220,  W203,

W210,  W211, W209,  W202,  W208,  W215,  W230, W219, etc. ) 
   
OEM Key simply changing afew solder joints will be able to change the 315MHz and 433MHzremote frequency.Key EEPROM data stored in MCU plug-MemoryATMEL24C02C (hereinafter referred to as the 24C02), as long asthere is a computer that can read and write 24C02 programmer can beachieved key EEPROM data read / write. For example: XPROG-M BeePrpgor LabTool-48UXP universal programmer. Does not require specialequipment!

315MHz and433MHz frequency changes as shown below: 
  

 Read / write 24C02 removed fromthe PCB into the adapter seat, and then use the programmer tomanipulate it. 



This is not written to the 24C02 EEPROMdata. 


This is written to the24C02 EEPROM data