Allora sono riuscito a dare almeno un comando: adb devices e mi da l'htc attaccato all'USB...
ora da quel che ho capito devo fare il downgrade al mio che ha il 2.3.3 (non riesco a trovare la versione firmware).
i passaggi sotto son quelli che devo fare giusto?
presi da qui
http://wiki.cyanogenmod.com/wiki/HTC_Desire_Z:_Firmware_Downgrade_(Gingerbread)se scazzo qualcosa cosa rischio?
Downgrading to 1.34.707.3
You will need ADB on the computer to proceed thru this process. Follow the Android SDK guide, to get the ADB shell on the computer.
Download fre3vo, misc_version 0.2 & the 1.34.707.3 firmware:
fre3vo: Download
md5: 010e076a4a93be876579711bf8934c70
misc_version 0.2: Download
md5: 1f40aaf88d1bf15775631a58c4361218
1.34.707.3 firmware: Download
md5: 8aa11b9e9db9877b029f37caec49547d
Unzip the fre3vo & misc_version packages to the same folder as adb (the /platform-tools folder within the Android SDK folder).
Make sure the filename of the firmware is PC10IMG.zip exactly or it will not work and copy it to the same folder as adb.
Connect the HTC Desire Z to the computer via USB.
On the computer, open terminal and run the following commands:
adb push fre3vo /data/local/tmp
adb push misc_version /data/local/tmp
adb shell
chmod 777 /data/local/tmp/fre3vo
chmod 777 /data/local/tmp/misc_version
/data/local/tmp/fre3vo -debug -start FAA90000 -end FFFFFFFF
adb shell
NOTE: You should have the "#" sign instead of the "$". If you do, you have temporary root, and can continue on. If you have the "$", then the exploit has failed, refer to xda developers, RootzWiki, or #G2Root for further assistance.
/data/local/tmp/misc_version -s 1.00.000.0
exit
Now that misc version has been downgraded, the HTC Desire Z is ready to have the firmware downgraded. On the computer, open terminal and run the following commands:
adb push PC10IMG.zip /sdcard/PC10IMG.zip
adb reboot bootloader
Use Volume up/down keys on the HTC Desire Z for navigation and Power key for confirmation. Select Bootloader to flash the 1.34.707.3 firmware.
Once finished you can can continue to the next section.