well i didnt sold you a non working phone and besides its not my phone it was just a friends phone binigay ko na sa kanya yung issue mo and the reason why i wasnt able to answer your calls is because wrong timing yung mga calls mo. im always at the office. the unit was working 101% always and i used globe and smart when the unit was given to me. i tested it for almost 2 months kaya wag mo sabihin ng binenta ko sau ay sira dahil the unit was working and the no hidden defect yan. di ko alam kung ano ngyari sa unit at naging ganon. kung pera lang naman kaya ko palitan yung binayad mo sa akin dahil di naman sa akin napunta yung pera kung di sa friend ko.