The Phrygian Scale.

The phrygian mode is the third mode of the major scale, in other words, playing the phrygian is the same as playing a major scale starting at the third note.

The finger pattern for the Phrygian mode is as follows:

In this example we are playing the F# phrygian scale, starting at the 2nd fret of the 6th (low E) string.
The note marked in red on the A string is the beginning of the relative minor scale pattern - in this case B minor. The beginning of the relative major pattern is also marked in red.

This scale should be easy to learn because apart from the first three notes (on the 6th string), the finger pattern is identical to playing a minor scale starting on the A string. In this example, B (2nd fret, 5th string) is the relative minor scale.

Black Notes: These positions should be fretted with the first finger.
Blue Notes: These positions should be fretted with the second finger.
Green Notes: These positions should be fretted with the third finger.
White Notes: These positions should be fretted with the fourth finger.