bueno e probado en otra pc le instale solo los driver del flahstool, esta pc no tiene pc companion al tratar hacrer el flasheo me sale esto:
30/041/2013 16:41:37 - INFO - <- This level is successfully initialized
30/041/2013 16:41:37 - INFO - Flashtool Version 0.9.0.0 built on 2012-07-19 22:57:15
30/041/2013 16:41:37 - INFO - You can drag and drop ftf files here to start flashing them
30/041/2013 16:41:42 - INFO - Device disconnected
30/042/2013 16:42:07 - INFO - Device connected with USB debugging off
30/042/2013 16:42:07 - INFO - For 2011 devices line, be sure you are not in MTP mode
30/042/2013 16:42:08 - INFO - Device connected with USB debugging on
30/042/2013 16:42:08 - INFO - Connected device : R800
30/042/2013 16:42:08 - INFO - Installed version of busybox : BusyBox v1.19.0 (2011-08-14 23:46:58 CDT) multi-call binary.
30/042/2013 16:42:08 - INFO - Android version : 2.3.4 / kernel version : 2.6.32.9-perf
30/042/2013 16:42:16 - INFO - Root Access Allowed
30/042/2013 16:42:29 - INFO - Selected R800i_4.0.2.A.0.58_Generic Hong Kong Trade.ftf
30/042/2013 16:42:29 - INFO - Preparing files for flashing
30/042/2013 16:42:29 - INFO - Please connect your device into flashmode.
30/042/2013 16:42:38 - INFO - Device disconnected
30/043/2013 16:43:02 - INFO - Device connected in flash mode
30/043/2013 16:43:02 - INFO - Opening device for R/W
30/043/2013 16:43:02 - INFO - Reading device information
30/043/2013 16:43:02 - INFO - Phone ready for flashmode operations.
30/043/2013 16:43:02 - INFO - Start Flashing
30/043/2013 16:43:02 - INFO - Flashing loader
30/043/2013 16:43:02 - INFO - Ending flash session
30/043/2013 16:43:02 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ER R_DYNAMIC="SIN header verification failed"
30/043/2013 16:43:02 - ERROR - Error flashing. Aborted
30/043/2013 16:43:02 - INFO - Device connected in flash mode
30/043/2013 16:43:04 - INFO - Device disconnected
30/043/2013 16:43:05 - INFO - Device connected in flash mode
sera la vercion de flashtool?, sera porque tengo el bootloader desbloqueado segun el metodo de la pagina oficial de SE?, que podra ser? por favor alguna idea...seguire investigando. gracias.