Annyira azért nem megy jól:

28/033/2016 22:33:19 - INFO - Please connect your device into flashmode.
28/033/2016 22:33:34 - INFO - Device connected in flash mode
28/033/2016 22:33:34 - INFO - Opening device for R/W
28/033/2016 22:33:34 - INFO - Reading device information
28/033/2016 22:33:34 - INFO - Phone ready for flashmode operations.
28/033/2016 22:33:34 - INFO - Opening TA partition 2
28/033/2016 22:33:34 - INFO - Current device : D5803 - YT911A4G9V - 1289-4463_R4D - 1285-6521_23.5.A.0.575 - GLOBAL-LTE_23.5.A.0.575
28/033/2016 22:33:34 - INFO - Closing TA partition
28/033/2016 22:33:34 - INFO - Start Flashing
28/033/2016 22:33:34 - INFO - Ending flash session
28/033/2016 22:33:34 - ERROR - Can't read a byte value
28/033/2016 22:33:34 - ERROR - Error flashing. Aborted
28/033/2016 22:33:34 - INFO - Device connected in flash mode
28/033/2016 22:33:35 - INFO - Device disconnected
28/033/2016 22:33:37 - INFO - Device connected in flash mode
28/034/2016 22:34:38 - INFO - Device disconnected
28/034/2016 22:34:53 - INFO - Device connected with USB debugging off
28/034/2016 22:34:53 - INFO - For 2011 devices line, be sure you are not in MTP mode