Revisiting Trimaximal TM2 mixing in two A_4 modular symmetries

We discuss a minimal lepton flavour model with two modular A_4 symmetries, one acting on neutrinos and the other acting on charged leptons. Two corresponding moduli fields are restricted at stabilisers. To avoid vanishing or degenerate lepton masses, the stabiliser in the charged lepton sector always preserves a Z_3 symmetry, and that in the neutrino preserves a Z_2 symmetry. By scanning all viable stabilisers, a unique Trimaximal TM2 mixing is predicted. However, the prediction of the lightest neutrino mass and the mass parameter in neutrinoless double beta decay, as well as two Majorana phases, are different and classified into three cases.