c4 強刷的問題

30/040/2016 11:40:52 - INFO  - Start Flashing
30/040/2016 11:40:52 - INFO  - Processing loader.sin
30/040/2016 11:40:52 - INFO  -     Checking header
30/040/2016 11:40:52 - ERROR - Processing of loader.sin finished with errors.
30/040/2016 11:40:52 - INFO  - Ending flash session
30/040/2016 11:40:52 - ERROR -
30/040/2016 11:40:52 - ERROR - Error flashing. Aborted
30/040/2016 11:40:52 - INFO  - Device connected in flash mode
30/042/2016 11:42:00 - INFO  - Device disconnected
30/042/2016 11:42:17 - INFO  - Device connected with USB debugging off
30/042/2016 11:42:17 - INFO  - For 2011 devices line, be sure you are not in MTP mode
30/042/2016 11:42:42 - INFO  - Device connected with USB debugging on
30/042/2016 11:42:42 - INFO  - Connected device : Sony Xperia C4
30/042/2016 11:42:42 - INFO  - Installed version of busybox : N/A
30/042/2016 11:42:42 - INFO  - Android version : 5.0 / kernel version : 3.10.61+ / Build number : 27.1.A.1.115
30/042/2016 11:42:42 - INFO  - Checking root access
30/042/2016 11:42:46 - INFO  - Root access denied


請問一下出現上方這訊息該怎處理