[Xperia SP General] rosinantejoker:
I already followed the instruction, but after finished flashing then it told me to unplug my phone and start it, nothing happened when I press the power button, only a blink of green light and then nothing :( please help me :(

when I connect my phone in the flash tool, the device is connect and disconnected by itself.

here is my log in flash tool

31/042/2015 10:42:50 - INFO - Flashtool Version 0.9.19.0 built on 29-07-2015 12:00:00

31/042/2015 10:42:50 - INFO - Executing search strategies to find proxy selector

31/042/2015 10:42:51 - INFO - No proxy found for IE. Trying next one

31/042/2015 10:42:51 - INFO - No proxy found for firefox. Trying next one

31/042/2015 10:42:51 - INFO - No proxy found for java. Trying next one

31/042/2015 10:42:51 - INFO - Syncing devices from github

31/042/2015 10:42:51 - INFO - Scanning devices folder for changes.

31/043/2015 10:43:06 - INFO - Pulling changes from github.

31/043/2015 10:43:07 - INFO - Devices sync finished.

31/043/2015 10:43:12 - INFO - Device connected in flash mode

31/043/2015 10:43:53 - INFO - Device disconnected

31/043/2015 10:43:55 - INFO - Device connected in flash mode

31/044/2015 10:44:35 - INFO - Device disconnected

31/044/2015 10:44:37 - INFO - Device connected in flash mode

31/045/2015 10:45:18 - INFO - Device disconnected

31/045/2015 10:45:20 - INFO - Device connected in flash mode

31/046/2015 10:46:00 - INFO - Device disconnected

31/046/2015 10:46:02 - INFO - Device connected in flash mode

31/046/2015 10:46:42 - INFO - Device disconnected

31/046/2015 10:46:44 - INFO - Device connected in flash mode

31/047/2015 10:47:25 - INFO - Device disconnected

31/047/2015 10:47:27 - INFO - Device connected in flash mode

31/048/2015 10:48:08 - INFO - Device disconnected

31/048/2015 10:48:10 - INFO - Device connected in flash mode

31/048/2015 10:48:50 - INFO - Device disconnected

31/048/2015 10:48:52 - INFO - Device connected in flash mode

31/049/2015 10:49:02 - INFO - Device disconnected

31/021/2015 11:21:13 - INFO - Flash canceled

31/021/2015 11:21:32 - INFO - Selected Bundle for Sony Xperia SP (C5303). FW release : 12.1.A.0.266. Customization : Generic AU

31/021/2015 11:21:32 - INFO - Preparing files for flashing

31/022/2015 11:22:44 - INFO - Please connect your device into flashmode.

31/023/2015 11:23:43 - INFO - Device connected in flash mode

31/023/2015 11:23:43 - INFO - Opening device for R/W

31/023/2015 11:23:43 - INFO - Reading device information

31/023/2015 11:23:43 - INFO - Phone ready for flashmode operations.

31/023/2015 11:23:43 - INFO - Opening TA partition 2

31/023/2015 11:23:43 - INFO - Current device : C5303 - YT9108L9KY - 1272-3352_R1B - 1272-3352_12.1.A.1.201 - GLOBAL-LTE_12.1.A.1.201

31/023/2015 11:23:43 - INFO - Closing TA partition

31/023/2015 11:23:43 - INFO - Start Flashing

31/023/2015 11:23:43 - INFO - Processing loader.sin

31/023/2015 11:23:43 - INFO - Checking header

31/023/2015 11:23:43 - INFO - Flashing data

31/023/2015 11:23:45 - INFO - Loader : S1_Root_7054 - Version : R5G006 / Boot version : R11B023 / Bootloader status : ROOTABLE

31/023/2015 11:23:45 - INFO - Transfer buffer size : 32768

31/023/2015 11:23:45 - INFO - You must have the according fsc script to flash this device.

31/023/2015 11:23:45 - INFO - Flashing finished.

31/023/2015 11:23:45 - INFO - Please unplug and start your phone

31/023/2015 11:23:45 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings