SMART KEY compatibility/programability...

[baseballfan416]

Hey guys, this is unrelated to a yaris but I figured I'd ask since a lot of you out there are toyota buffs (not just yaris).

My girlfriend has an 08 toyota camry with smart key fob FCC ID: HYQ14aab and IC: 1551A-14AAB. Bought a used smart key off ebay with the same exact numbers in the hopes of getting it mated with her existing smart key. Dealer attempted to reprogram smart key (sounds like they have to do all smart keys to link up with the car at the same time which they did), but the one I bought on ebay didn't work.

Dealer claims one of two issues: the smart key is defective or it's not able to marry/link to existing vehicle.

I am able to get my money back on the ebay smart key. What I want to know is should I be looking for something more specific than just the keyfob itself (correct part number)? I know for instance, that the cobb accessport for my STi has to be unmarried in order to work on a different vehicle (to prevent multiple reflashes with the same part). Is that the same case with toyota smart keys? Or did I just happen to get a faulty part in which case I can go ahead and look for another smart key that will work next time?

I realize this is unrelated to the yaris but I appreciate any help seeing as I've uncovered nothing by searching online (other than a bunch of odd prius forums asking about using lexus credit card fobs on their vehicles).