[Xperia Z2 Q&A, Help & Troubleshooting] poiko:
Hello,

I am having some trouble flashing my Z2, I hope you can help me...

As you can see in the log below somethings get updated (confirmed in the service menu, Phone software V=1278-4770_23.1.A.28, file system V=global-lte_23.1.A.0.726). I have tried Sony's USB drivers and Flashtool drivers, 32/64 versions of flashtool itself (computer is 64 tho), also tried VodaUK and genericUK ftf (later is the one I want, both downloaded twice with Xperifirm), USB2 and USB3 ports... It always fails at the same point. After that the phone reboots into normal operating mode while still plugged (that's what you can see in the last entries).

I am uncheking all wipe options as i don't want to loose anything..

14/057/2015 09:57:32 - INFO - Flashtool Version 0.9.18.5 built on 14-02-2015 15:30:00
14/057/2015 09:57:32 - INFO - Executing search strategies to find proxy selector
14/057/2015 09:57:33 - INFO - No proxy found for IE. Trying next one
14/057/2015 09:57:33 - INFO - No proxy found for firefox. Trying next one
14/057/2015 09:57:33 - INFO - No proxy found for java. Trying next one
14/057/2015 09:57:43 - INFO - Syncing devices from github
14/057/2015 09:57:43 - INFO - Scanning devices folder for changes.
14/057/2015 09:57:54 - INFO - Pulling changes from github.
14/057/2015 09:57:57 - INFO - Devices sync finished.
14/058/2015 09:58:01 - INFO - Device disconnected
14/058/2015 09:58:16 - INFO - Selected Bundle for Sony Xperia Z2 (D6503). FW release : 23.1.A.1.28. Customization : Customized UK
14/058/2015 09:58:16 - INFO - Preparing files for flashing
14/059/2015 09:59:08 - INFO - Please connect your device into flashmode.
14/059/2015 09:59:23 - INFO - Device connected in flash mode
14/059/2015 09:59:23 - INFO - Opening device for R/W
14/059/2015 09:59:23 - INFO - Reading device information
14/059/2015 09:59:23 - INFO - Phone ready for flashmode operations.
14/059/2015 09:59:23 - INFO - Current device : D6503 - BH908DB616 - 1281-2651_R8C - 1278-4770_23.1.A.1.28 - GLOBAL-LTE_23.1.A.0.726
14/059/2015 09:59:23 - INFO - Start Flashing
14/059/2015 09:59:23 - INFO - Processing loader.sin
14/059/2015 09:59:23 - INFO - Checking header
14/059/2015 09:59:23 - INFO - Flashing data
14/059/2015 09:59:24 - INFO - Processing of loader.sin finished.
14/059/2015 09:59:24 - INFO - Loader : S1_Root_9c84 - Version : MSM8974AB_27 / Boot version : S1_Boot_MSM8974AB_LA3.0_L_15.4 / Bootloader status : NOT_ROOTABLE
14/059/2015 09:59:25 - INFO - Processing partition-image.sin
14/059/2015 09:59:25 - INFO - Checking header
14/059/2015 09:59:25 - INFO - Flashing data
14/059/2015 09:59:25 - INFO - Processing of partition-image.sin finished.
14/059/2015 09:59:25 - INFO - Parsing boot delivery
14/059/2015 09:59:25 - INFO - Phone boot version : S1_Boot_MSM8974AB_LA3.0_L_15.4. Boot delivery version : S1_Boot_MSM8974AB_LA3.0_L_15.4
14/059/2015 09:59:25 - INFO - Boot delivery up to date. Nothing to do
14/059/2015 09:59:25 - INFO - Processing kernel.sin
14/059/2015 09:59:25 - INFO - Checking header
14/059/2015 09:59:25 - INFO - Flashing data
14/059/2015 09:59:27 - INFO - Processing of kernel.sin finished.
14/059/2015 09:59:27 - INFO - Processing fotakernel.sin
14/059/2015 09:59:27 - INFO - Checking header
14/059/2015 09:59:27 - INFO - Flashing data
14/059/2015 09:59:29 - INFO - Processing of fotakernel.sin finished.
14/059/2015 09:59:29 - INFO - Processing amss_fs_2.sin
14/059/2015 09:59:29 - INFO - Checking header
14/059/2015 09:59:29 - INFO - Flashing data
14/059/2015 09:59:29 - INFO - Processing of amss_fs_2.sin finished.
14/059/2015 09:59:29 - INFO - Processing amss_fs_1.sin
14/059/2015 09:59:29 - INFO - Checking header
14/059/2015 09:59:29 - INFO - Flashing data
14/059/2015 09:59:29 - INFO - Processing of amss_fs_1.sin finished.
14/059/2015 09:59:29 - INFO - Processing amss_fsg.sin
14/059/2015 09:59:29 - INFO - Checking header
14/059/2015 09:59:29 - INFO - Flashing data
14/059/2015 09:59:29 - INFO - Processing of amss_fsg.sin finished.
14/059/2015 09:59:29 - INFO - Ending flash session
14/059/2015 09:59:29 - ERROR -
14/059/2015 09:59:29 - ERROR - Error flashing. Aborted
14/059/2015 09:59:29 - INFO - Device connected in flash mode
14/059/2015 09:59:35 - INFO - Device disconnected
14/059/2015 09:59:35 - INFO - Device connected in flash mode
14/000/2015 10:00:41 - INFO - Device disconnected
14/000/2015 10:00:50 - INFO - Device connected with USB debugging off
14/000/2015 10:00:50 - INFO - For 2011 devices line, be sure you are not in MTP mode
14/019/2015 10:19:26 - INFO - Device disconnected

I have to be doing something wrong, can you point out what is it?

Thanks guys!!