[Xperia Arc Q&A, Help & Troubleshooting] nosxman:
I'll try again :) most version I took from androxyde.github.com, I make sure all the necessary driver install, MSC on, USB debugging on, Unknown Source ticked, 1 strange thing about my phone is that, it's an Arc S but the max CPU speed is only 1Ghz not 1.4Ghz

let's start with the latest 0.9.10.1

this is where the flashing process just halts forever, full logs

15/018/2013 10:18:34 - DEBUG - (X10flash.java:214) - Sending part 24 of 26
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:37) - Writing packet to phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:39) - OUT : CommandID : 6 / Flags : false,true,true / Data length : 4096 / Data CRC32 : [DA, F5, A3, E3]
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:50) - Reading packet from phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:64) - IN : CommandID : 6 / Flags : false,false,false / Data length : 0 / Data CRC32 : [00, 00, 00, 00]
15/018/2013 10:18:34 - DEBUG - (X10flash.java:214) - Sending part 25 of 26
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:37) - Writing packet to phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:39) - OUT : CommandID : 6 / Flags : false,true,true / Data length : 4096 / Data CRC32 : [EC, 7B, 63, 4F]
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:50) - Reading packet from phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:64) - IN : CommandID : 6 / Flags : false,false,false / Data length : 0 / Data CRC32 : [00, 00, 00, 00]
15/018/2013 10:18:34 - DEBUG - (X10flash.java:214) - Sending part 26 of 26
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:37) - Writing packet to phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:39) - OUT : CommandID : 6 / Flags : false,true,false / Data length : 908 / Data CRC32 : [03, A4, 6D, 03]
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:50) - Reading packet from phone
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:64) - IN : CommandID : 6 / Flags : false,false,false / Data length : 0 / Data CRC32 : [00, 00, 00, 00]
15/018/2013 10:18:34 - DEBUG - (USBFlashWin32.java:50) - Reading packet from phone

this is the error with 0.9.9.0, full logs

15/037/2013 10:37:59 - DEBUG - (Command.java:125) - Reply :
15/037/2013 10:37:59 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply : PROT_VER="03";DATE="20110217";TIME="15:47:00";VER="R4A066";CXC="1234-5769";TYPE="S1_LOADER";UNIQUE_DEV_ID="B6E3A19B96A8B1A020F87A147B4C8DCA402DB630";SEC_LOCK_STATUS="LOCKED";OTP_DATA="4B6D7100471404C815080428806DF7ABB001002000000000";IMEI="";AID_VERSION="0003";EROM_AID="0001";LOADER_AID="0001";HWCONF_AID="0001";PROD_ID="0000";ACTIVE_LOADER_AID="0001";MEMDEVS="02:00:0098:00B3:0055:00002000:00020000:00000800:00000040,03:03:0002:544D:0011:00075580:00010000:00000200";MAN_ID="0098";DEV_ID="00B3";EXT_DEV_ID="0055";SIN_VER="0001";AID_TAMP="NOT_TAMPERED";MAX_PKT_SZ="00010000";AUTH_LEVEL="NONE";AUTH_MET="0001";CARD_PRESENT="YES";CARD_SIZE="32GB";CARD_DATA="";LOADER_ROOT="S1_Loader_Root_773f";EROM_ROOT="S1_EROM_Root_d601";SW_ROOT="S1_SW_Root_883f";CUST_ROOT="S1_Cust_Root_9603";SIM_LOCK_ROOT="S1_SL_Root_c422";HW_CONF_ROOT="S1_HWConf_Root_08af";BIM_STATE="DISABLED";
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) : [50, 52, 4F, 54, 5F, 56, 45, 52, 3D, 22, 30, 33, 22, 3B, 44, 41, 54, 45, 3D, 22, 32, 30, 31, 31, 30, 32, 31, 37, 22, 3B, 54, 49, 4D, 45, 3D, 22, 31, 35, 3A, 34, 37, 3A, 30, 30, 22, 3B, 56, 45, 52, 3D, 22, 52, 34, 41, 30, 36, 36, 22, 3B, 43, 58, 43, 3D, 22, 31, 32, 33, 34, 2D, 35, 37, 36, 39, 22, 3B, 54, 59, 50, 45, 3D, 22, 53, 31, 5F, 4C, 4F, 41, 44, 45, 52, 22, 3B, 55, 4E, 49, 51, 55, 45, 5F, 44, 45, 56, 5F, 49, 44, 3D, 22, 42, 36, 45, 33, 41, 31, 39, 42, 39, 36, 41, 38, 42, 31, 41, 30, 32, 30, 46, 38, 37, 41, 31, 34, 37, 42, 34, 43, 38, 44, 43, 41, 34, 30, 32, 44, 42, 36, 33, 30, 22, 3B, 53, 45, 43, 5F, 4C, 4F, 43, 4B, 5F, 53, 54, 41, 54, 55, 53, 3D, 22, 4C, 4F, 43, 4B, 45, 44, 22, 3B, 4F, 54, 50, 5F, 44, 41, 54, 41, 3D, 22, 34, 42, 36, 44, 37, 31, 30, 30, 34, 37, 31, 34, 30, 34, 43, 38, 31, 35, 30, 38, 30, 34, 32, 38, 38, 30, 36, 44, 46, 37, 41, 42, 42, 30, 30, 31, 30, 30, 32, 30, 30, 30, 30, 30, 30, 30, 30, 30, 22, 3B, 49, 4D, 45, 49, 3D, 22, 22, 3B, 41, 49, 44, 5F, 56, 45, 52, 53, 49, 4F, 4E, 3D, 22, 30, 30, 30, 33, 22, 3B, 45, 52, 4F, 4D, 5F, 41, 49, 44, 3D, 22, 30, 30, 30, 31, 22, 3B, 4C, 4F, 41, 44, 45, 52, 5F, 41, 49, 44, 3D, 22, 30, 30, 30, 31, 22, 3B, 48, 57, 43, 4F, 4E, 46, 5F, 41, 49, 44, 3D, 22, 30, 30, 30, 31, 22, 3B, 50, 52, 4F, 44, 5F, 49, 44, 3D, 22, 30, 30, 30, 30, 22, 3B, 41, 43, 54, 49, 56, 45, 5F, 4C, 4F, 41, 44, 45, 52, 5F, 41, 49, 44, 3D, 22, 30, 30, 30, 31, 22, 3B, 4D, 45, 4D, 44, 45, 56, 53, 3D, 22, 30, 32, 3A, 30, 30, 3A, 30, 30, 39, 38, 3A, 30, 30, 42, 33, 3A, 30, 30, 35, 35, 3A, 30, 30, 30, 30, 32, 30, 30, 30, 3A, 30, 30, 30, 32, 30, 30, 30, 30, 3A, 30, 30, 30, 30, 30, 38, 30, 30, 3A, 30, 30, 30, 30, 30, 30, 34, 30, 2C, 30, 33, 3A, 30, 33, 3A, 30, 30, 30, 32, 3A, 35, 34, 34, 44, 3A, 30, 30, 31, 31, 3A, 30, 30, 30, 37, 35, 35, 38, 30, 3A, 30, 30, 30, 31, 30, 30, 30, 30, 3A, 30, 30, 30, 30, 30, 32, 30, 30, 22, 3B, 4D, 41, 4E, 5F, 49, 44, 3D, 22, 30, 30, 39, 38, 22, 3B, 44, 45, 56, 5F, 49, 44, 3D, 22, 30, 30, 42, 33, 22, 3B, 45, 58, 54, 5F, 44, 45, 56, 5F, 49, 44, 3D, 22, 30, 30, 35, 35, 22, 3B, 53, 49, 4E, 5F, 56, 45, 52, 3D, 22, 30, 30, 30, 31, 22, 3B, 41, 49, 44, 5F, 54, 41, 4D, 50, 3D, 22, 4E, 4F, 54, 5F, 54, 41, 4D, 50, 45, 52, 45, 44, 22, 3B, 4D, 41, 58, 5F, 50, 4B, 54, 5F, 53, 5A, 3D, 22, 30, 30, 30, 31, 30, 30, 30, 30, 22, 3B, 41, 55, 54, 48, 5F, 4C, 45, 56, 45, 4C, 3D, 22, 4E, 4F, 4E, 45, 22, 3B, 41, 55, 54, 48, 5F, 4D, 45, 54, 3D, 22, 30, 30, 30, 31, 22, 3B, 43, 41, 52, 44, 5F, 50, 52, 45, 53, 45, 4E, 54, 3D, 22, 59, 45, 53, 22, 3B, 43, 41, 52, 44, 5F, 53, 49, 5A, 45, 3D, 22, 33, 32, 47, 42, 22, 3B, 43, 41, 52, 44, 5F, 44, 41, 54, 41, 3D, 22, 22, 3B, 4C, 4F, 41, 44, 45, 52, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 4C, 6F, 61, 64, 65, 72, 5F, 52, 6F, 6F, 74, 5F, 37, 37, 33, 66, 22, 3B, 45, 52, 4F, 4D, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 45, 52, 4F, 4D, 5F, 52, 6F, 6F, 74, 5F, 64, 36, 30, 31, 22, 3B, 53, 57, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 53, 57, 5F, 52, 6F, 6F, 74, 5F, 38, 38, 33, 66, 22, 3B, 43, 55, 53, 54, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 43, 75, 73, 74, 5F, 52, 6F, 6F, 74, 5F, 39, 36, 30, 33, 22, 3B, 53, 49, 4D, 5F, 4C, 4F, 43, 4B, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 53, 4C, 5F, 52, 6F, 6F, 74, 5F, 63, 34, 32, 32, 22, 3B, 48, 57, 5F, 43, 4F, 4E, 46, 5F, 52, 4F, 4F, 54, 3D, 22, 53, 31, 5F, 48, 57, 43, 6F, 6E, 66, 5F, 52, 6F, 6F, 74, 5F, 30, 38, 61, 66, 22, 3B, 42, 49, 4D, 5F, 53, 54, 41, 54, 45, 3D, 22, 44, 49, 53, 41, 42, 4C, 45, 44, 22, 3B, 00]
15/038/2013 10:38:01 - INFO - (X10flash.java:399) - Loader : S1_Loader_Root_773f - Version : R4A066 / Bootloader status : ROOTED
15/038/2013 10:38:01 - INFO - (X10flash.java:323) - Disabling final data verification check
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply :
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply :
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply :
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - WARN - (X10flash.java:312) - This file is ignored : simlock.ta
15/038/2013 10:38:01 - DEBUG - (X10flash.java:314) - Flashing simlock.ta finished
15/038/2013 10:38:01 - INFO - (X10flash.java:282) - Processing kernel.sin
15/038/2013 10:38:01 - DEBUG - (SinFileHeader.java:79) - Sin version 1 ; Partition block count : 100 ; Partition block size : 131072 ; Partition size : 12.512Mb
15/038/2013 10:38:01 - INFO - (X10flash.java:167) - Checking header
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply :
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - INFO - (X10flash.java:365) - Ending flash session
15/038/2013 10:38:01 - DEBUG - (Command.java:125) - Reply :
15/038/2013 10:38:01 - DEBUG - (Command.java:126) - Reply(Hex) :
15/038/2013 10:38:01 - ERROR - (X10flash.java:342) - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_STATIC="SIN_HEAD_VER";ERR_DYNAMIC="Failed to verify sin header";
15/038/2013 10:38:01 - ERROR - (X10flash.java:343) - Error flashing. Aborted
15/038/2013 10:38:02 - INFO - (FlasherGUI.java:1029) - Device connected in flash mode
15/038/2013 10:38:03 - INFO - (FlasherGUI.java:1025) - Device disconnected

same errors with 0.6.9.1 full logs