Who are you replying to or what gives you the impression anyone here is trying to do it themselves?
At least I see a bunch of people wanting to know the TPI, for a couple of reasons:
1. Give the actual TPI number to the dealers when they deny something exists
2. Learn the magical words to say and request so you can get the TPI applied.
What exactly is your understanding of what is going on?
That's because East Yorkshire sell DIY Mib2 solutions so interesting to know how they did it. TPIs aren't something the customer should know about. They only know about them since they have VAG authorised software although Erwin publishes this stuff although I haven't looked myself specifically for TPIs. £7-50 an hour, registration details here:
To answer a lot of the technical questions of the
Ateca the full workshop manuals are available by an hourly or daily rate for download as PDF files. You can browse but can't download if you don't pay. https://erwin.seat.com/erwin/showHome.do 7 Euro's + VAT gives you the ability to download in...
www.seatcupra.net
Erwin itself is designed to support independent garages, you get the same level of technical information as a Seat dealer, so I understand. The actual updates fall out of the VAG systems which you buy. You can read all about them on Erwin.
There probably will be a day when mib3 DIY solutions come about one suspects but not yet one guesses. Mib2 solution divide into free supported by a user community or paid supported by retrofitters like East Yorkshire that are well capable and offer a reliable service... That's where a dealer doesn't have a bug recorded against firmware but the user wants an upgrade to it, not offered for free by a dealer. If a retrofitter offering upgrades to systems you need the full where with all of coding across all of the firmware units of the car.
The question is whether all 16xx software is deemed as faulty and is liable to a free upgrade. Those are the codes that East Yorkshire is quoting the ones that pass into the recall free group. Now whether and when the others come up. Those are the ones that East Yorkshire have said wait.
My understanding is their own vehicle is one of the 16xx ones but not on the list, so having the skill set, set about doing it. But didn't succeed, the story so far.
Not that I'm making a future mib3 market for them but obviously good will counts for a lot
. That's why they are highly skilled in doing the update and have access to the update and TPI.