Quiero actualizar por Flashtool y me sale esto..
21/048/2016 19:48:48 - INFO - Max packet size set to 4M
21/048/2016 19:48:48 - INFO - USB buffer size set to 512K
21/048/2016 19:48:54 - INFO - Parsing boot delivery
21/048/2016 19:48:54 - INFO - No flash script found.
21/048/2016 19:48:54 - INFO - Flash script is mandatory. Closing session
21/048/2016 19:48:54 - INFO - Ending flash session
21/048/2016 19:48:54 - INFO - Flashing finished.
21/048/2016 19:48:54 - INFO - Please unplug and start your phone
21/048/2016 19:48:54 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
21/048/2016 19:48:54 - INFO - Device connected in flash mode