6WA Update Issue

[syncroflash]

Hello, I got an F30 US Version. The NBT was already retrofittet. I got some issues at the Kombi. The navigation arrows are faulty and i want to update the 6WA. Esys wants to change the hardware and I dont understand why.
On the picture you can see the TAL generated tree. What do I have to do for a successful update?
For me, it looks fine and should be working without changing hardware. Is that right?

Thanks!