After getting my phone to turn on and working again i wasn't able to use flashtool and it looks like this:
05/041/2014 14:41:04 - INFO - Device connected with USB debugging on
05/041/2014 14:41:05 - INFO - Connected device : Sony Xperia Z2
05/041/2014 14:41:05 - INFO - Installed version of busybox : BusyBox v1.22.1-Stericson (2014-01-25 17:27:18 CET) multi-call binary.
05/041/2014 14:41:05 - INFO - Android version : 4.4.2 / kernel version : 3.4.0-perf-gef0bdc3 / Build number : 17.1.1.A.0.402
05/041/2014 14:41:05 - INFO - Checking root access
05/041/2014 14:41:05 - INFO - Root Access Allowed
05/041/2014 14:41:23 - INFO - Selected Bundle for Sony Xperia Z2 (D6503). FW release : 17.1.2.A.0.314. Customization : Generic Thailand
05/041/2014 14:41:23 - INFO - Preparing files for flashing
05/041/2014 14:41:24 - INFO - Please connect your device into flashmode.
05/041/2014 14:41:34 - INFO - Device disconnected
05/041/2014 14:41:59 - INFO - Device connected with USB debugging off
05/041/2014 14:41:59 - INFO - For 2011 devices line, be sure you are not in MTP mode
05/042/2014 14:42:11 - INFO - Flash canceled
LED blinks red,green, then turns off and flashtool doesn't detect it all.
Afterwards i need to use the power button and volume up key to turn off the phone and reboot.
I also tried via sony pc companion and the phone update itself to update and get 17.1.2.A.0.314 but that didn't work either.
Occasionally flashtool gets stuck on installftkit:
05/010/2014 14:10:37 - INFO - Checking root access
05/010/2014 14:10:43 - INFO - Root Access Allowed
05/010/2014 14:10:43 - INFO - Installing toolbox to device...
05/010/2014 14:10:43 - INFO - Pushing C:\Flashtool\custom\root\ftkit.tar to /data/local/tmp
05/010/2014 14:10:44 - INFO - Running installftkit as root thru sysrun
So i can't update by flashing, pc companion, or via phone. It would also work if anyone knows how i can update without flashing.
-Sorry for long post, just wanted to provide some background info.