[Xperia Z3v General] MysteryXx:
I tried updating my Sony Xperia Z3v with Flashtool

Flashtool 9.19.10 is installed. Download firmware 23.0.A.2.93 and 23.4.A.1.264 (tried both)

I get the error "Processing of partition-image.sin finished with errors" and, of course, my phone can't boot anymore.

18/058/2016 17:58:07 - INFO - Please connect your device into flashmode.
18/058/2016 17:58:30 - INFO - Device connected in flash mode
18/058/2016 17:58:30 - INFO - Opening device for R/W
18/058/2016 17:58:30 - INFO - Reading device information
18/058/2016 17:58:30 - INFO - Phone ready for flashmode operations.
18/058/2016 17:58:30 - INFO - Opening TA partition 2
18/058/2016 17:58:30 - INFO - Current device : D6708 - BH9011T61N - 1288-1477_R19B - 1278-4381_23.0.E.1.44 - VERIZON-LTE_23.0.E.1.44
18/058/2016 17:58:30 - INFO - Closing TA partition
18/058/2016 17:58:30 - INFO - Start Flashing
18/058/2016 17:58:30 - INFO - Processing loader.sin
18/058/2016 17:58:30 - INFO - Checking header
18/058/2016 17:58:30 - INFO - Flashing data
18/058/2016 17:58:31 - INFO - Loader : S1_Root_9c84 - Version : MSM8974AB_22 / Boot version : S1_Boot_MSM8974AC_LA3.0_59_VZW / Bootloader status : NOT_ROOTABLE
18/058/2016 17:58:31 - INFO - Max packet size set to 512K
18/058/2016 17:58:31 - INFO - Making a TA backup
18/058/2016 17:58:31 - INFO - Opening TA partition 1
18/058/2016 17:58:31 - INFO - Start Dumping TA partition 1
18/058/2016 17:58:32 - INFO - Finished Dumping TA partition 1
18/058/2016 17:58:32 - INFO - TA partition 1 saved to C:\Flashtool\registeredDevices\BH9011T61N\s1ta\2016-03-18_05-58-31\1.ta
18/058/2016 17:58:32 - INFO - Closing TA partition
18/058/2016 17:58:32 - INFO - Opening TA partition 2
18/058/2016 17:58:32 - INFO - Start Dumping TA partition 2
18/058/2016 17:58:32 - INFO - Finished Dumping TA partition 2
18/058/2016 17:58:32 - INFO - TA partition 2 saved to C:\Flashtool\registeredDevices\BH9011T61N\s1ta\2016-03-18_05-58-31\2.ta
18/058/2016 17:58:32 - INFO - Closing TA partition
18/058/2016 17:58:32 - INFO - Parsing boot delivery
18/058/2016 17:58:32 - INFO - No flash script found. Using 0.9.18 flash engine
18/058/2016 17:58:32 - INFO - Opening TA partition 2
18/058/2016 17:58:33 - INFO - Writing TA unit 00002774. Value : [01]
18/058/2016 17:58:33 - INFO - Closing TA partition
18/058/2016 17:58:33 - INFO - Processing partition-image.sin
18/058/2016 17:58:33 - INFO - Checking header
18/058/2016 17:58:33 - ERROR - Processing of partition-image.sin finished with errors.
18/058/2016 17:58:33 - INFO - Ending flash session
18/058/2016 17:58:33 - ERROR -
18/058/2016 17:58:33 - ERROR - Error flashing. Aborted
18/058/2016 17:58:33 - INFO - Flashing finished.
18/058/2016 17:58:33 - INFO - Please unplug and start your phone
18/058/2016 17:58:33 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
18/058/2016 17:58:33 - INFO - Device connected in flash mode
18/058/2016 17:58:33 - INFO - Device disconnected

How can I get my phone to work again? And ideally updated to the latest version. Thanks!

I'm using Windows 10 and since I use it outside of USA and don't have Verizon, automatic update doesn't work so I believe flashing is the only way to get an update. It is a stock Z3v phone with all the Verizon crap.

Edit:

Here's the error part of the log with Debug output, in case it can give something useful

18/026/2016 19:26:14 - INFO - Processing partition.sin
18/026/2016 19:26:14 - INFO - Checking header
18/026/2016 19:26:14 - DEBUG - Writing packet to phone
18/026/2016 19:26:14 - DEBUG - OUT : CommandID : 5 / Flags : false,true,false / Data length : 1032 / Data CRC32 : [AC, 28, 7A, AB]
18/026/2016 19:26:14 - DEBUG - Reading packet from phone
18/026/2016 19:26:14 - DEBUG - IN : CommandID : 5 / Flags : true,false,false / Data length : 0 / Data CRC32 : [00, 00, 00, 00]
18/026/2016 19:26:14 - DEBUG - Writing packet to phone
18/026/2016 19:26:14 - DEBUG - OUT : CommandID : 7 / Flags : false,true,false / Data length : 0 / Data CRC32 : [00, 00, 00, 00]
18/026/2016 19:26:14 - DEBUG - Reading packet from phone
18/026/2016 19:26:14 - DEBUG - IN : CommandID : 7 / Flags : false,false,false / Data length : 61 / Data CRC32 : [BC, 39, C4, 26]
18/026/2016 19:26:14 - ERROR - Processing of partition.sin finished with errors.