[Xperia Z3 Compact Q&A, Help & Troubleshooting] Sprudeldudel:
did that. the flash went through OK, the baseband is still the same. maybe it was already up to date. i'll check again with the same method on the next update and see.

log below:

19/026/2015 21:26:18 - INFO - Flashtool Version 0.9.19.10 built on 04-10-2015 21:00:00

19/026/2015 21:26:18 - INFO - Executing search strategies to find proxy selector

19/026/2015 21:26:18 - INFO - No proxy found for IE. Trying next one

19/026/2015 21:26:18 - INFO - No proxy found for firefox. Trying next one

19/026/2015 21:26:18 - INFO - No proxy found for java. Trying next one

19/026/2015 21:26:18 - INFO - Syncing devices from github

19/026/2015 21:26:18 - INFO - Scanning devices folder for changes.

19/026/2015 21:26:23 - INFO - Pulling changes from github.

19/026/2015 21:26:24 - INFO - Devices sync finished.

19/026/2015 21:26:28 - INFO - Device connected in fastboot mode

19/028/2015 21:28:18 - INFO - Device disconnected

19/028/2015 21:28:27 - INFO - Device connected in flash mode

19/029/2015 21:29:29 - INFO - Device disconnected

19/029/2015 21:29:45 - INFO - Device connected with USB debugging off

19/029/2015 21:29:45 - INFO - For 2011 devices line, be sure you are not in MTP mode

19/030/2015 21:30:01 - INFO - Device disconnected

19/033/2015 21:33:04 - INFO - Device connected in flash mode

19/033/2015 21:33:18 - INFO - Selected Bundle for Sony Xperia Z3 Compact (D5803). FW release : 23.4.A.1.232. Customization : Customized DE

19/033/2015 21:33:18 - INFO - Preparing files for flashing

19/033/2015 21:33:18 - INFO - Please connect your device into flashmode.

19/033/2015 21:33:19 - INFO - Opening device for R/W

19/033/2015 21:33:19 - INFO - Reading device information

19/033/2015 21:33:19 - INFO - Phone ready for flashmode operations.

19/033/2015 21:33:19 - INFO - Opening TA partition 2

19/033/2015 21:33:19 - INFO - Current device : D5803 - YT910W5YRM - 1289-4696_R5C - 1285-6521_23.4.A.1.200 - GLOBAL-LTE_23.4.A.1.200

19/033/2015 21:33:19 - INFO - Closing TA partition

19/033/2015 21:33:19 - INFO - Start Flashing

19/033/2015 21:33:19 - INFO - Processing loader.sin

19/033/2015 21:33:19 - INFO - Checking header

19/033/2015 21:33:19 - INFO - Flashing data

19/033/2015 21:33:20 - INFO - Loader : S1_Root_9c84 - Version : MSM8974AB_27 / Boot version : S1_Boot_MSM8974AC_LA3.0_L_37 / Bootloader status : ROOTED

19/033/2015 21:33:20 - INFO - Max packet size set to 512K

19/033/2015 21:33:20 - INFO - Making a TA backup

19/033/2015 21:33:20 - INFO - Opening TA partition 1

19/033/2015 21:33:20 - INFO - Start Dumping TA partition 1

19/033/2015 21:33:20 - INFO - Finished Dumping TA partition 1

19/033/2015 21:33:21 - INFO - TA partition 1 saved to C:\Users\sprud\.flashTool\registeredDevices\YT910W5YRM\s1ta\2015-10-19_09-33-20\1.ta

19/033/2015 21:33:21 - INFO - Closing TA partition

19/033/2015 21:33:21 - INFO - Opening TA partition 2

19/033/2015 21:33:21 - INFO - Start Dumping TA partition 2

19/033/2015 21:33:21 - INFO - Finished Dumping TA partition 2

19/033/2015 21:33:21 - INFO - TA partition 2 saved to C:\Users\sprud\.flashTool\registeredDevices\YT910W5YRM\s1ta\2015-10-19_09-33-20\2.ta

19/033/2015 21:33:21 - INFO - Closing TA partition

19/034/2015 21:34:09 - INFO - Found a template session. Using it : C:\Users\sprud\.flashTool\devices\D58XX\default.fsc

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - INFO - Writing TA unit 00002774. Value : [01]

19/034/2015 21:34:09 - INFO - Closing TA partition

19/034/2015 21:34:09 - WARN - partition is excluded from bundle

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - INFO - Closing TA partition

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - WARN - Unit 2127 not found in bundle

19/034/2015 21:34:09 - WARN - Unit 2301 not found in bundle

19/034/2015 21:34:09 - INFO - Closing TA partition

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - WARN - dbi is excluded from bundle

19/034/2015 21:34:09 - WARN - emmc_appsboot is excluded from bundle

19/034/2015 21:34:09 - WARN - rpm is excluded from bundle

19/034/2015 21:34:09 - WARN - s1sbl is excluded from bundle

19/034/2015 21:34:09 - WARN - sbl1 is excluded from bundle

19/034/2015 21:34:09 - WARN - tz is excluded from bundle

19/034/2015 21:34:09 - INFO - Closing TA partition

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - WARN - cache is excluded from bundle

19/034/2015 21:34:09 - WARN - apps_log is excluded from bundle

19/034/2015 21:34:09 - WARN - kernel is excluded from bundle

19/034/2015 21:34:09 - WARN - fotakernel is excluded from bundle

19/034/2015 21:34:09 - INFO - Closing TA partition

19/034/2015 21:34:09 - INFO - Opening TA partition 2

19/034/2015 21:34:09 - WARN - userdata is excluded from bundle

19/034/2015 21:34:09 - WARN - system is excluded from bundle

19/034/2015 21:34:09 - INFO - Processing amss_fs_1.sin

19/034/2015 21:34:09 - INFO - Checking header

19/034/2015 21:34:09 - INFO - Flashing data

19/034/2015 21:34:10 - INFO - Processing amss_fs_2.sin

19/034/2015 21:34:10 - INFO - Checking header

19/034/2015 21:34:10 - INFO - Flashing data

19/034/2015 21:34:10 - INFO - Processing amss_fsg.sin

19/034/2015 21:34:10 - INFO - Checking header

19/034/2015 21:34:10 - INFO - Flashing data

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - WARN - Unit 2212 not found in bundle

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - WARN - Unit 2404 not found in bundle

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - WARN - elabel is excluded from bundle

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Opening TA partition 2

19/034/2015 21:34:10 - INFO - Writing TA unit 00002725. Value : [32, 30, 31, 35, 2D, 31, 30, 2D, 31, 39, 20, 32, 31, 3A, 33, 34, 3A, 31, 30, 00]

19/034/2015 21:34:10 - INFO - Writing TA unit 00002774. Value : [00]

19/034/2015 21:34:10 - INFO - Closing TA partition

19/034/2015 21:34:10 - INFO - Ending flash session

19/034/2015 21:34:10 - INFO - Flashing finished.

19/034/2015 21:34:10 - INFO - Please unplug and start your phone

19/034/2015 21:34:10 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings