[XPERIA X10 General] Duvel999:
this error

31/031/2011 11:31:17 - INFO - <- This level is successfully initialized

31/031/2011 11:31:17 - INFO - Starting adb service

31/031/2011 11:31:36 - INFO - Preparing files for flashing

31/032/2011 11:32:43 - INFO - Searching for Xperia....

31/032/2011 11:32:43 - INFO - Found at USB\VID_0FCE&PID_ADDE\5&47CE786&0&3

31/032/2011 11:32:43 - INFO - Start Flashing

31/032/2011 11:32:43 - INFO - Sending loader

31/032/2011 11:32:43 - INFO - ### read failed : checksum err! FFFFFFFF!=CBEF977B

31/032/2011 11:32:47 - INFO - Loader sent

31/032/2011 11:32:47 - INFO - Flashing kernel.sin

31/032/2011 11:32:51 - INFO - Flashing amss_fs.sin

31/032/2011 11:32:51 - INFO - Flashing system.sin

31/036/2011 11:36:06 - INFO - Flashing dsp1.sin

31/036/2011 11:36:13 - INFO - Flashing fota1.sin

31/036/2011 11:36:16 - INFO - Flashing fota0.sin

31/036/2011 11:36:17 - INFO - Flashing amss.sin

31/036/2011 11:36:25 - INFO - Flashing userdata.sin

31/036/2011 11:36:29 - INFO - Flashing cache.sin

31/036/2011 11:36:32 - INFO - Flashing finished.

31/036/2011 11:36:32 - INFO - Now unplug the device and power it on

31/036/2011 11:36:32 - INFO - Then go to application settings

31/036/2011 11:36:32 - INFO - turn on Unknown Sources and Debugging

31/036/2011 11:36:53 - INFO - Preparing files for flashing

31/037/2011 11:37:00 - INFO - Searching for Xperia....

31/037/2011 11:37:00 - INFO - Found at USB\VID_0FCE&PID_ADDE\5&47CE786&0&3

31/037/2011 11:37:00 - INFO - Start Flashing

31/037/2011 11:37:00 - INFO - Sending loader

31/037/2011 11:37:03 - INFO - ### read failed : checksum err! FFFFFFFF!=00000000

31/037/2011 11:37:03 - INFO - Loader sent

31/037/2011 11:37:03 - INFO - Flashing kernel.sin

31/037/2011 11:37:03 - INFO - Flashing amss_fs.sin

31/037/2011 11:37:03 - INFO - Flashing system.sin

31/037/2011 11:37:08 - INFO - Flashing dsp1.sin

31/037/2011 11:37:08 - INFO - Flashing fota1.sin

31/037/2011 11:37:08 - INFO - Flashing fota0.sin

31/037/2011 11:37:08 - INFO - Flashing amss.sin

31/037/2011 11:37:08 - INFO - Flashing userdata.sin

31/037/2011 11:37:08 - INFO - Flashing cache.sin

31/037/2011 11:37:08 - INFO - Flashing finished.

31/037/2011 11:37:08 - INFO - Now unplug the device and power it on

31/037/2011 11:37:08 - INFO - Then go to application settings

31/037/2011 11:37:08 - INFO - turn on Unknown Sources and Debugging

31/037/2011 11:37:25 - INFO - Preparing files for flashing

31/037/2011 11:37:31 - INFO - Searching for Xperia....

31/037/2011 11:37:31 - INFO - Found at USB\VID_0FCE&PID_ADDE\5&47CE786&0&3

31/037/2011 11:37:31 - INFO - Start Flashing

31/037/2011 11:37:31 - INFO - Sending loader

31/037/2011 11:37:34 - INFO - ### read failed : checksum err! FFFFFFFF!=00000000

31/037/2011 11:37:34 - INFO - Loader sent

31/037/2011 11:37:34 - INFO - Flashing kernel.sin

31/037/2011 11:37:34 - INFO - Flashing amss_fs.sin

31/037/2011 11:37:34 - INFO - Flashing system.sin

31/037/2011 11:37:39 - INFO - Flashing dsp1.sin

31/037/2011 11:37:39 - INFO - Flashing fota1.sin

31/037/2011 11:37:39 - INFO - Flashing fota0.sin

31/037/2011 11:37:39 - INFO - Flashing amss.sin

31/037/2011 11:37:39 - INFO - Flashing userdata.sin

31/037/2011 11:37:39 - INFO - Flashing cache.sin

31/037/2011 11:37:39 - INFO - Flashing finished.

31/037/2011 11:37:39 - INFO - Now unplug the device and power it on

31/037/2011 11:37:39 - INFO - Then go to application settings

31/037/2011 11:37:39 - INFO - turn on Unknown Sources and Debugging

after 3 times it seems to work:D