The influence of oxygen ordering on the temperature dependence of the magnetic field penetration depth λ is investigated in submicron YBa 2 Cu 3 O 6 + x particles obtained by low-temperature (T s = 800 - 850°C) synthesis from a sol-gel precursor. Additional O O bonds created at low temperature synthesis hinder the oxygen ordering in Cu(1)O plane despite of its high content (x > 0.82). Oxygen exchange as well as additional annealing stimulate tetra-ortho transition and oxygen ordering. A wide linear range is observed in λ a b - 2 (T) for samples with highly disordered oxygen. This is attributed to strong phase fluctuations caused by local strains. A gauge-glass model with random distribution of order parameter phases describes the behavior of λ a b - 2 (T), revealed at initial stage of the hindered tetra-ortho transition. Transformation of the linear λ a b - 2 (T) fuction to a quadratic one with oxygen ordering is related to decreasing of local deformations and to transformation from a glass state to the usual superconducting orthophase. Two essentially different ways of oxygen ordering, reoxidation and additional annealing, result in the same final state with a similar power law of λ a b - 2 (T).