thanks to all the alpharev's team, cause alpharev still works on htc GRATIA
there's some step to do, but not so difficults:
read http://xdaforums.com/showthread.php?t=1133446 attn1 post with assisted all this procedure...
on windows:
1 ) download the package and upd-hboot.cmd as administrator
2 ) step 1 for the reverse cid: make a goldcard (all the istruction is on txt that appear) and insert it in gcimg folder
3) run step 2, the phone will reboot and start in fastboot
4) DO NOT REBOOT THE PHONE! If you have errors in step 2, run step 2 AGAIN IMMEDIATELY (it will show u some error about goldcard, don't mind, go ahead) WITHOUT leaving HBOOT
5) then your phone has 1.02.0000 hboot, ready for alpharevX