How to Unlock the Sony CMD-Z7 - FREE solution - YouTube
Service Manual - Sony CMD-Z7 - Mobile phone
Sony MDR-Z7 M2 — Woo Audio
Sony CMD Z7 Silver Gsm Unlocked Phone Sony CMD Z7 has Grayscale graphic, 4 shades, a resolution of 96 x 92 pixels screen. It supports 2G networks with Mini-SIM. Sony CMD Z7