[Xperia Z3 Compact Q&A, Help & Troubleshooting] maxzass:
Hello

Got my Z3c few days ago as second phone for outdoor sport etc. Wanted to remove some system stuff (Sony's and Google's). Become a developer, allowed usb-debugging and unknown sources I tried to flash it using different versions of firmware and Flashboot but got the same error: freeze at flashing data... If I try to boot into the system it freezes at Sony logo.

Log example, if interesed:

16/048/2019 14:48:20 - INFO - <- This level is successfully initialized
16/048/2019 14:48:21 - INFO - Flashtool Version 0.9.25.0 built on 17-06-2018 16:00:00
16/048/2019 14:48:21 - INFO - Searching for a web proxy
16/048/2019 14:48:21 - INFO - No proxy found, using direct connection
16/048/2019 14:48:21 - INFO - Syncing devices from github
16/048/2019 14:48:21 - INFO - Opening devices repository.
16/048/2019 14:48:21 - INFO - Scanning devices folder for changes.
16/048/2019 14:48:27 - INFO - Pulling changes from github.
16/048/2019 14:48:28 - INFO - Devices sync finished.
16/048/2019 14:48:29 - INFO - Loading devices database
16/048/2019 14:48:29 - INFO - Loaded 115 devices
16/048/2019 14:48:29 - INFO - Starting phone detection
16/048/2019 14:48:31 - INFO - Device disconnected
16/048/2019 14:48:55 - INFO - Selected Bundle for Sony Xperia Z3 Compact(D5803). FW release : 23.5.A.0.575. Customization : Customized RU
16/048/2019 14:48:55 - INFO - Preparing files for flashing
16/049/2019 14:49:17 - INFO - Please connect your device into flashmode.
16/049/2019 14:49:25 - INFO - Using Gordon gate drivers version 3.1.0.0
16/049/2019 14:49:26 - INFO - Opening device for R/W
16/049/2019 14:49:26 - INFO - Device ready for R/W.
16/049/2019 14:49:26 - INFO - Reading device information
16/049/2019 14:49:26 - INFO - Phone ready for flashmode operations.
16/049/2019 14:49:26 - INFO - Opening TA partition 2
16/049/2019 14:49:26 - INFO - Current device : D5803 - YT9110QZ6V - 1288-5411_R12D - 1285-6521_23.5.A.1.291 - GLOBAL-LTE_23.5.A.1.291
16/049/2019 14:49:26 - INFO - Closing TA partition
16/049/2019 14:49:26 - INFO - Start Flashing
16/049/2019 14:49:26 - INFO - Processing loader.sin
16/049/2019 14:49:26 - INFO - Checking header
16/049/2019 14:49:26 - INFO - Flashing data
16/049/2019 14:49:27 - INFO - Loader : S1_Root_9c84 - Version : MSM8974AB_27 / Boot version : S1_Boot_MSM8974AC_LA3.0_L_37 / Bootloader status : NOT_ROOTABLE
16/049/2019 14:49:27 - INFO - Max packet size set to 512K
16/049/2019 14:49:27 - INFO - USB buffer size set to 512K
16/049/2019 14:49:28 - INFO - Parsing boot delivery
16/049/2019 14:49:28 - INFO - No flash script found. Using 0.9.18 flash engine
16/049/2019 14:49:28 - INFO - Opening TA partition 2
16/049/2019 14:49:28 - INFO - Writing TA unit 00002774. Value : 01
16/049/2019 14:49:28 - INFO - Closing TA partition
16/049/2019 14:49:28 - INFO - Processing partition.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Phone boot version : S1_Boot_MSM8974AC_LA3.0_L_37. Boot delivery version : S1_Boot_MSM8974AC_LA3.0_M_2
16/049/2019 14:49:28 - INFO - Going to flash boot delivery
16/049/2019 14:49:28 - INFO - Opening TA partition 2
16/049/2019 14:49:28 - INFO - Processing emmc_appsboot_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID09-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Closing TA partition
16/049/2019 14:49:28 - INFO - Opening TA partition 2
16/049/2019 14:49:28 - INFO - Flashing Aries_S1BootConfig_MiscTA.ta to partition 2
16/049/2019 14:49:28 - INFO - Writing TA unit 0000084F. Value : 1A CE 28 00 01 00 06 05 00 02 02 08 00 10 03 00 02 04 02 05 00 01 03 02 00 10 05 00 03 03 05 00 10 05 00 05 83 02 00 10 02 00 05 85 12 00 02 00 A9 09 BE BA A9 09 00 00 B3 08 BE BA B3 08 00 00 04 00 03 00 02 00 04 00 04 00 B0 04 0E 00 06 00 B8 0B 01 4B 00 00 00 03 96 00 2C 01 03 00 09 00 01
16/049/2019 14:49:28 - INFO - Writing TA unit 000008FD. Value : 00
16/049/2019 14:49:28 - INFO - Closing TA partition
16/049/2019 14:49:28 - INFO - Opening TA partition 2
16/049/2019 14:49:28 - INFO - Processing sbl1_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID00-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Processing rpm_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID0A-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Processing tz_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID07-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Processing s1sbl_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID65-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:28 - INFO - Processing dbi_S1_Boot_MSM8974AC_LA3_0_M_2_AID_4_PLATFORM-MSM8974AC-LIVE-HWID007B40E1-SWID12-OEM1-AID4-DEBUG00_S1-BOOT-LIVE-9C84-0004-MMC.sin
16/049/2019 14:49:28 - INFO - Checking header
16/049/2019 14:49:28 - INFO - Flashing data
16/049/2019 14:49:29 - INFO - Closing TA partition
16/049/2019 14:49:29 - INFO - Opening TA partition 2
16/049/2019 14:49:29 - INFO - Closing TA partition
16/049/2019 14:49:29 - INFO - Opening TA partition 2
16/049/2019 14:49:29 - INFO - Processing amss_fsg.sin
16/049/2019 14:49:29 - INFO - Checking header
16/049/2019 14:49:29 - INFO - Flashing data
16/049/2019 14:49:29 - INFO - Processing amss_fs_1.sin
16/049/2019 14:49:29 - INFO - Checking header
16/049/2019 14:49:29 - INFO - Flashing data
16/049/2019 14:49:29 - INFO - Processing amss_fs_2.sin
16/049/2019 14:49:29 - INFO - Checking header
16/049/2019 14:49:29 - INFO - Flashing data
16/049/2019 14:49:29 - INFO - Processing cache.sin
16/049/2019 14:49:29 - INFO - Checking header
16/049/2019 14:49:29 - INFO - Flashing data
16/049/2019 14:49:30 - INFO - Processing fotakernel.sin
16/049/2019 14:49:30 - INFO - Checking header
16/049/2019 14:49:30 - INFO - Flashing data

Now trying to unlock bootloader using fastboot. Generated unlock code on Sony website using my IMEI, do:

fastboot oem unlock 0x<myUnlockCode>

and get this:

FAILED (remote: command not allowed)

Any ideas or suggestion would be very appriciated.

Thanx.