I'm waiting for my ECU tools to be delivered to the shop that is working on getting the immobilizer turned off. It's been taking a while because the shop had to order specific tools from Europe, for an ECU that does not exist in the USA. The chip & shipping shortage of 2021 caused the delivery of the tools to be delayed. But the tools just recently arrived and they are working on it! We shall get an update really soon, because that means my A4 will start, run & drive!