  Assuming three generations of Majorana neutrinos, we study the different
mixing patterns that arise from the non-trivial breaking of the flavor group A5
and CP to the residual symmetries Z3, Z5 or Z2 x Z2 in the charged lepton and
to Z2 x CP in the neutrino sector. All patterns contain only one free parameter
theta and thus mixing angles as well as the Dirac and the two Majorana phases
are strongly correlated. We perform an analytical and a numerical study of all
possible mixing patterns. It turns out that only four patterns can describe the
experimentally measured values of the mixing angles for a particular choice of
theta well. All of them predict trivial Majorana phases, while the Dirac phase
delta is maximal for two patterns and trivial for the two remaining ones. If
delta is maximal, also the atmospheric mixing angle is fixed to be maximal.
