Sony Xperia Z2 Hidden Service Menu

How to get into the Sony Xperia Z2 (D6503) Hidden Service Menu to test device functions, use the phone all and dial: , , 7378423, , Subscribe:)))))) Get Sony Xperia Z2 in the USA: Get Sony Xperia Z2 in the UK: Sony Xperia Z2 Unboxing: Samsung Galaxy S5 Unboxing WHITE: Samsung Galaxy S5 Unboxing BLACK: HTC ONE M8 2014 UNboxing: http