RonS
I feel bad... thank you for looking into this.
I copied over the new no nag navi.exe but I think at this moment everything was selected, so what happened is that one file was pasted in but then- with no chance to stop it - it start to delete everything else. So I needed to copy everything from prg1 or its app subfolder to the instance Prg0.
Lessions learned ... and I am happy that it still works at all!
So there is a risk that I have overwritten the update, at least I do not see the new functions( like the AHA configuration in the settings or the search box in the last cities) and I would like to reapply the update but it does not let me.
With regard to your question:
Yes, I have a prg.flg file but it sits in the root= user\ (not in the prg folders)
I think I followed most of that. But I'm not sure what files you think were deleted or why. Were you doing a Delete or a Paste? Did you intentionally copy from one PRG directory to the other? If so, you just made things worse. You can't accidentally overwrite files with testmode.
What do you mean "I have a prg.flg file but it sits in the root= user\ (not in the prg folders)". If PRG.FLG is present, it would be in \USER along with the PRG0 and PRG1 folders. Than may be what you were saying.
OK, here's the first rule of hacking - have a backup. So I recommend getting a 16GB (8GB might work), and immediately use TestMode to make a backup copy of everything in USER. That way you can undo anything you try to do to fix this.
I'm still not clear on whether 2017 v7 is in PRG0 or PRG1. That's why the PRG.FLG is important. If you were following the No Nag instructions, you should already know which was the "active" directory. Which was it?
Back to the original suspected problem. You should of been copying NAVI.EXE (the no nag one) from SD to the active program directory (PRG0\APL or PRG1\APL). To do this, you need to delete the existing NAVI.EXE before "pasting" the new one. Testmode will not overwrite an existing file. So it it was the Paste operation you think started overwriting or deleting files - it didn't. It can't.
On the other hand, if you selected all the files (instead of NAVI.EXE) to DELETE, then you would have a big problem. But then your unit would be dead. Actually, I'm not convinced that anything is wrong. If you deleted anything important, you'd have very big problems even using the head unit.
If you really think there are corrupted files in the Active APL directory, you can just copy them from the 2017 update SD (UPDATE\USER\PRG\APL). Remember you need to delete the existing files first. Also, a file overwritten by the old one will have an old date/timestamp. Nearly all the APL files are from 2017. There are a few older DLL files that are just utility libraries that have not updated.
DON'T DO ANYTHING DESTRUCTIVE WITHOUT A BACKUP!!!