I think this may have been asked on a few occassions but I am still having Issues re the auto pilot not been able to activate

I have configured the aircraft as per the tutorial on several occassions and still it doesnt want to activate, then all of a sudden it does, but not always.

I have completely Un installed and re installed .. and still no joy. also VNav etc does not arm either.

I love this aircraft as I do the 777 and I have no issues with the 777 ...so can any one advise what the issue could be...and how I could resolve this.

I have gone through the FMC set menue no failures set.... maybe I am missing something.

 

 

Thanks

 

 

maybe I am missing something.

 

If Realistic AP Engagement is selected in the options menus, then you should have a look at the tutorial and intro manual to see the requirements for AP engagement.

 

There are minimum altitudes, and in-trim requirements.

 

Also - re-installs are generally the last thing you should do.  As you can see, it usually doesn't fix the issue and it can actually cause more problems if not done correctly.