is it possible to reverse a LNAB change?

Question

i changed a LNAB in error. How should I proceed?

Comments

You can't undo the change. You only can change it again, as Kevin indicates in his answer.

It happens - don't worry about it.

Answer 1

You should change it to the correct LNAB.

Comments

If I change it again that will end up with three profiles, two redirecting to the third. 

What I wanted to do was to go back to the original profile, i.e. undo the redirect, and delete the second with the erroneous LNAB  change.

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It’s not possible.