My purse was stolen two weeks ago, hence a lost smart key to my 2005 Prius. I found one on ebay and took it today to my Toyota dealer for programming. An hour later, the tech returned saying it would not program. He said the battery wasn't the problem. I asked about trying to fix the key, perhaps replacing a computer chip. He said he didn't do that. So, I purchased a new key for $310. Now, my question is...can the used key fob be repaired and kept as a spare? Who would likely fix it? perhaps a locksmith?