Here are few .ops and .pit files for various Samsung Android smartphones.
SAMSUNG ANDROID SERIES
----------------------
SMARTPHONES:-
SAMSUNGMODEL.OPS / .PIT File
Galaxy chatGT-B5330zanin.rar
Galaxy Y ProGT-B5510luisa_0623.pit.zip
Galaxy Y ProGT-B5510Bluisa_0623.pit.zip
Galaxy Y ProGT-B5510Lluisa_0623.pit.zip
Galaxy Y Pro DuosGT-B5512luisaDS_1205.rar, .pit
Galaxy Y Pro DuosGT-B5512BluisaDS_1205.rar, .pit
Galaxy ProGT-B7510BENNETT_v1.0.zip
Galaxy M ProGT-B7800
Galaxy EuropeGT-I5500EUROPA_v1.0.zip
Galaxy EuropeGT-I5500BEUROPA_v1.0.zip
Galaxy EuropeGT-I5500LEUROPA_v1.0.zip
Galaxy 5 GT-I5503 EUROPA_v1.0.zip
SAMSUNG ANDROID SERIES
----------------------
SMARTPHONES:-
SAMSUNGMODEL.OPS / .PIT File
Galaxy chatGT-B5330zanin.rar
Galaxy Y ProGT-B5510luisa_0623.pit.zip
Galaxy Y ProGT-B5510Bluisa_0623.pit.zip
Galaxy Y ProGT-B5510Lluisa_0623.pit.zip
Galaxy Y Pro DuosGT-B5512luisaDS_1205.rar, .pit
Galaxy Y Pro DuosGT-B5512BluisaDS_1205.rar, .pit
Galaxy ProGT-B7510BENNETT_v1.0.zip
Galaxy M ProGT-B7800
Galaxy EuropeGT-I5500EUROPA_v1.0.zip
Galaxy EuropeGT-I5500BEUROPA_v1.0.zip
Galaxy EuropeGT-I5500LEUROPA_v1.0.zip
Galaxy 5 GT-I5503 EUROPA_v1.0.zip