Hello! Im buy Lumia 800 a few days ago. I have locked boot. But im found secret mode of boot.Maybe its helps to unlock.To enter the mode Press POWER+CAMERA. USB must be connected, Push this buttons until you see new screen on fone. In device manager of your pc you will see devise "ZUNE'" with corupt driver and ZUNE software will be crash.
Sorry for my Eanglish
USB\Vid_045e&Pid_0710 - its in device manager
Sorry for my Eanglish
USB\Vid_045e&Pid_0710 - its in device manager
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