Mercedes Benz KELESS GO Contains Two Styles:
Old Style with Black Edge and New Style with Electroplating Edge

1, When use new style key with electroplating edge to process KEYLESS GO, if original key is with black edge, then keyless go key must be with black edge( the key must be fully-new blank or has been refreshed to blank, and remote control frequency must be as same as original key frequency.)
2, If original key is with electroplating edge, then KEYLESS GO key must be with same electroplating edge (the key also must be fully-new blank or has been refreshed to blank, don’t use old model with black edge KEYLESS GO key, otherwise it will not support KEYLESS GO function. )

What you need to pay attention when doing NEC Programming with AK500 PRO?

Some customers reflected to us that they can not write NEC chips with AK500 PRO. Now we will tell you the reason. When you write NEC chip with AK500 PRO, you need to use NEC Pro software. NEC PRO software is a kind of crack software, when you use it, you should close the anti-virus software on your computer first, or it will cancel the NEC PRO software as virus. So it certainly can not do the NEC function.