Hola, espero que me puedan ayudar con mi problema, ya que al hacer todos los pasos descritos, al final del ultimo paso me sale un error
07/02/2012 04:01:04 p.m. Welcome to S1 tool.
07/02/2012 04:01:04 p.m. That is small and crippled subset of SETOOL2 service tool.
07/02/2012 04:01:32 p.m.
07/02/2012 04:01:32 p.m. DETACH USB CABLE FROM PHONE
07/02/2012 04:01:32 p.m. REMOVE BATTERY FROM PHONE
07/02/2012 04:01:32 p.m. ATTACH TESTPOINT
07/02/2012 04:01:32 p.m. PRESS "READY", THEN ATTACH USB CABLE TO PHONE
07/02/2012 04:01:32 p.m.
07/02/2012 04:02:19 p.m. PROCESSING ...
07/02/2012 04:02:20 p.m. REMOVE TESTPOINT NOW, THEN PRESS "READY"
07/02/2012 04:02:20 p.m.
07/02/2012 04:02:32 p.m.
07/02/2012 04:02:32 p.m. TO CONNECT NEXT PHONES
07/02/2012 04:02:32 p.m. X10 Xperia,E10 Mini,E15 Xperia X8,U20 Mini Pro
07/02/2012 04:02:32 p.m. LT15 Xperia ARC,MT15 Xperia NEO,R800 Xperia PLAY
07/02/2012 04:02:32 p.m. PRESS AND HOLD "BACK" BUTTON...
07/02/2012 04:02:32 p.m.
07/02/2012 04:02:32 p.m. ST18 Xperia RAY,ST15 Xperia Mini,SK17 Xperia Mini Pro
07/02/2012 04:02:32 p.m. PRESS AND HOLD "Volume Down" BUTTON...
07/02/2012 04:02:32 p.m.
07/02/2012 04:02:32 p.m. PLEASE ATTACH TURNED OFF PHONE NOW
07/02/2012 04:02:32 p.m.
07/02/2012 04:03:27 p.m.
07/02/2012 04:03:27 p.m. RUNNING S1_EROM VER "R9A028"
07/02/2012 04:03:27 p.m. SOFTWARE AID: 0001
07/02/2012 04:03:27 p.m. LOADER AID: 0001
07/02/2012 04:03:27 p.m. FATAL ERROR [ SECURITY_CLASS, SIN_header_verification_failed ]
07/02/2012 04:03:27 p.m. error while uploading HDR block
07/02/2012 04:03:27 p.m. LOADER NOT STARTED
07/02/2012 04:03:27 p.m. Elapsed:115 secs.
De antemano gracias por el tutorial!