Uploaded the original PC10IMG.zip on the SD card then pressed Down volume + Power . I got CID incorrect update failed!
Tried to upload a boot from sd rom like this one http://forum.xda-developers.com/show....php?t=1821663 and access it through recovery but again getting an error.
The worst thing is that when the phone is in Fast boot usb mode files can not be transferred in order to root the phone(I have tried also with HTC ONE X) when the phone is turned on the device is recognized by Android SDK when it is in hard reset mode (pressed down volume + power buttons) it can't this is the main problem.
Any ideas how I can bring back my desire z ? This is the last HTC phone having QWERTY keyboard and I really love it.