Keymall keyless EWS entry remote car key fob 3 Button replacement for BMW 3 5 7 SERIES E38 E39 E46 With Chip 315MHZ/433MHZ HU58

How to set to 433MHz 1. Hold on EWS1 Button, and then hold on EWS3 button with the other hand. 2. During you hold on EWS1, press EWS3 button 5 times in 5 seconds. 3. Frequency is 433MHz now, test frequency with programmer. 4. Start to program on car for working. Compatibility for BMW: 3 5 7 SERIES E38 E39 E46 ATTENTION This remote must program at a professional locksmith. All controls include a battery, are tested before shipped. Please make sure your remote matches the remote in the photo and that the fcc ids match which is usually located on the back or in the key insert. Thank you.