Watch the B Phrygian Progression online guitar lesson by Robbie Calvo from The Modal Alchemist
The B Phrygian chord progression utilizes the chords derived from the G major scale but resolves to the tonal center of the III chord, B minor.
In this example the progression can be described as a III - VI - IV - III - VI - IV - V four measure phrase. The chords I'm using are altered slightly to make them more musical and the result is this B minor 7 (b13) - E minor 7 - C 5/2 - B minor 7 (b13) - E minor 7 - C 5/2 - D 5/2.
Please note that as long as I use notes from the G major scale for my alterations they will all work. I explain the details of this in the video so check that out and apply those ideas to your fretboard as you listen to my explanation.