To locate your product code, unscrew the battery door from the back of your weemote. Next, remove the battery door and turn it completely around so the inside part of the battery door lid faces you. Note that this is the part of the lid that faces the batteries when it is secured to the weemote case. Now look at the white battery sticker and at the bottom of the battery door which contains your product code information.
If you don’t see any product code information at all, and front of your weemote has the Philips logo on it, then that model is considered an R5 version.
Valid product codes are R2 to R13B.