[Xperia Z Q&A, Help & Troubleshooting] Djugurtha26:
Same here

i have the seame issue just like u and i solved it this way

i flashed 5.1.1 stock

14/053/2017 13:53:25 - INFO - Selected Bundle for Sony Xperia Z(C6603). FW release : 10.7.A.0.228_R6E. Customization : C6603_Customized ES_1270-6697_10.7.A.0.228_R6E

14/053/2017 13:53:25 - INFO - Preparing files for flashing

14/053/2017 13:53:29 - INFO - Device disconnected

14/053/2017 13:53:35 - INFO - Device connected in flash mode

14/053/2017 13:53:36 - INFO - Device disconnected

14/053/2017 13:53:36 - INFO - Device connected in flash mode

14/053/2017 13:53:40 - INFO - Device disconnected

14/053/2017 13:53:41 - INFO - Device connected in flash mode

14/053/2017 13:53:43 - INFO - Device disconnected

14/053/2017 13:53:43 - INFO - Device connected in flash mode

14/053/2017 13:53:45 - INFO - Device disconnected

14/053/2017 13:53:46 - INFO - Device connected in flash mode

14/053/2017 13:53:47 - INFO - Device disconnected

14/053/2017 13:53:47 - INFO - Device connected in flash mode

14/053/2017 13:53:49 - INFO - Device disconnected

14/053/2017 13:53:50 - INFO - Device connected in flash mode

14/053/2017 13:53:51 - INFO - Device disconnected

14/053/2017 13:53:52 - INFO - Device connected in flash mode

14/053/2017 13:53:54 - INFO - Device disconnected

14/053/2017 13:53:55 - INFO - Device connected in flash mode

14/053/2017 13:53:56 - INFO - Device disconnected

14/053/2017 13:53:56 - INFO - Device connected in flash mode

14/054/2017 13:54:00 - INFO - Device disconnected

14/054/2017 13:54:09 - INFO - Device connected in flash mode

14/054/2017 13:54:56 - INFO - Please connect your device into flashmode.

14/054/2017 13:54:57 - INFO - Opening device for R/W

14/054/2017 13:54:57 - INFO - Reading device information

14/054/2017 13:54:57 - INFO - Phone ready for flashmode operations.

14/054/2017 13:54:57 - INFO - Opening TA partition 2

14/054/2017 13:54:57 - INFO - Current device : Unknown: Nov 30 2015/20:39:16 - CB5A1U1356 - Unknown: Nov 30 2015/20:39:16 - Unknown: Nov 30 2015/20:39:16 - Unknown: Nov 30 2015/20:39:16

14/054/2017 13:54:57 - INFO - Closing TA partition

14/054/2017 13:54:57 - INFO - Start Flashing

14/054/2017 13:54:57 - INFO - Processing loader.sin

14/054/2017 13:54:57 - INFO - Checking header

14/054/2017 13:54:57 - INFO - Flashing data

14/054/2017 13:54:57 - INFO - Loader : S1_Root_5ca3 - Version : APQ8064_39 / Boot version : S1_Boot_Lagan_1.1_10 / Bootloader status : ROOTED

14/054/2017 13:54:57 - INFO - Max packet size set to 512K

14/054/2017 13:54:57 - INFO - USB buffer size set to 256K

14/055/2017 13:55:03 - INFO - Parsing boot delivery

14/055/2017 13:55:03 - INFO - No flash script found. Using 0.9.18 flash engine

14/055/2017 13:55:03 - INFO - Opening TA partition 2

14/055/2017 13:55:03 - INFO - Writing TA unit 00002774. Value : 01

14/055/2017 13:55:03 - INFO - Closing TA partition

14/055/2017 13:55:03 - INFO - Processing partition-image.sin

14/055/2017 13:55:03 - INFO - Checking header

14/055/2017 13:55:03 - INFO - Flashing data

14/055/2017 13:55:03 - INFO - Phone boot version : S1_Boot_Lagan_1.1_10. Boot delivery version : S1_Boot_Lagan_1.1_10

14/055/2017 13:55:03 - INFO - Boot delivery up to date. Nothing to do

14/055/2017 13:55:03 - INFO - Opening TA partition 2

14/055/2017 13:55:03 - INFO - Closing TA partition

14/055/2017 13:55:03 - INFO - Opening TA partition 2

14/055/2017 13:55:03 - INFO - Processing amss_fs_1.sin

14/055/2017 13:55:03 - INFO - Checking header

14/055/2017 13:55:03 - INFO - Flashing data

14/055/2017 13:55:03 - INFO - Processing amss_fs_2.sin

14/055/2017 13:55:03 - INFO - Checking header

14/055/2017 13:55:03 - INFO - Flashing data

14/055/2017 13:55:03 - INFO - Processing amss_fs_3.sin

14/055/2017 13:55:03 - INFO - Checking header

14/055/2017 13:55:03 - INFO - Flashing data

14/055/2017 13:55:03 - INFO - Processing cache.sin

14/055/2017 13:55:04 - INFO - Checking header

14/055/2017 13:55:04 - INFO - Flashing data

14/055/2017 13:55:06 - INFO - Processing fotakernel.sin

14/055/2017 13:55:06 - INFO - Checking header

14/055/2017 13:55:06 - INFO - Flashing data

14/055/2017 13:55:07 - INFO - Processing kernel.sin

14/055/2017 13:55:07 - INFO - Checking header

14/055/2017 13:55:07 - INFO - Flashing data

14/055/2017 13:55:09 - INFO - Processing rpm.sin

14/055/2017 13:55:09 - INFO - Checking header

14/055/2017 13:55:09 - INFO - Flashing data

14/055/2017 13:55:09 - INFO - Closing TA partition

14/055/2017 13:55:09 - INFO - Opening TA partition 2

14/055/2017 13:55:10 - INFO - Processing system.sin

14/055/2017 13:55:10 - INFO - Checking header

14/055/2017 13:55:10 - INFO - Flashing data

14/000/2017 14:00:46 - INFO - Closing TA partition

14/000/2017 14:00:46 - INFO - Opening TA partition 2

14/000/2017 14:00:46 - INFO - Flashing cust-reset.ta to partition 2

14/000/2017 14:00:46 - INFO - Writing TA unit 000008A4. Value : 00 00 00 00 00 00 00 00 00 00 00 00 00 00

14/000/2017 14:00:46 - INFO - Closing TA partition

14/000/2017 14:00:46 - INFO - Opening TA partition 2

14/000/2017 14:00:47 - INFO - Processing elabel-C6603-row_201509160712483.1_10.7.A.0.228.sin

14/000/2017 14:00:47 - INFO - Checking header

14/000/2017 14:00:47 - INFO - Flashing data

14/000/2017 14:00:50 - INFO - Closing TA partition

14/000/2017 14:00:50 - INFO - Opening TA partition 2

14/000/2017 14:00:50 - INFO - Writing TA unit 00002725. Value : 32 30 31 37 2D 30 35 2D 31 34 20 31 34 3A 30 30 3A 35 30 00

14/000/2017 14:00:50 - INFO - Writing TA unit 00002774. Value : 00

14/000/2017 14:00:50 - INFO - Closing TA partition

14/000/2017 14:00:50 - INFO - Ending flash session

14/000/2017 14:00:50 - INFO - Flashing finished.

second i flashed the kitkat 4.4.4

14/002/2017 14:02:39 - INFO - Selected Bundle for Sony Xperia Z(C6603). FW release : 10.5.1.A.0.292. Customization : RU

14/002/2017 14:02:39 - INFO - Preparing files for flashing

14/003/2017 14:03:27 - INFO - Please connect your device into flashmode.

14/007/2017 14:07:53 - INFO - Device disconnected

14/016/2017 14:16:40 - INFO - Device connected in flash mode

14/016/2017 14:16:41 - INFO - Opening device for R/W

14/016/2017 14:16:41 - INFO - Reading device information

14/016/2017 14:16:41 - INFO - Phone ready for flashmode operations.

14/016/2017 14:16:41 - INFO - Opening TA partition 2

14/016/2017 14:16:41 - INFO - Current device : Unknown: Nov 30 2015/20:39:16 - CB5A1U1356 - Unknown: Nov 30 2015/20:39:16 - Unknown: Nov 30 2015/20:39:16 - Unknown: Nov 30 2015/20:39:16

14/016/2017 14:16:41 - INFO - Closing TA partition

14/016/2017 14:16:41 - INFO - Start Flashing

14/016/2017 14:16:41 - INFO - Processing loader.sin

14/016/2017 14:16:41 - INFO - Checking header

14/016/2017 14:16:41 - INFO - Flashing data

14/016/2017 14:16:41 - INFO - Loader : S1_Root_5ca3 - Version : APQ8064_39 / Boot version : S1_Boot_Lagan_1.1_10 / Bootloader status : ROOTED

14/016/2017 14:16:42 - INFO - Max packet size set to 512K

14/016/2017 14:16:42 - INFO - USB buffer size set to 256K

14/016/2017 14:16:46 - INFO - Parsing boot delivery

14/016/2017 14:16:46 - INFO - No flash script found. Using 0.9.18 flash engine

14/016/2017 14:16:46 - INFO - Opening TA partition 2

14/016/2017 14:16:46 - INFO - Writing TA unit 00002774. Value : 01

14/016/2017 14:16:46 - INFO - Closing TA partition

14/016/2017 14:16:46 - INFO - Processing partition-image.sin

14/016/2017 14:16:46 - INFO - Checking header

14/016/2017 14:16:46 - INFO - Flashing data

14/016/2017 14:16:46 - INFO - Phone boot version : S1_Boot_Lagan_1.1_10. Boot delivery version : S1_Boot_Lagan_1.1.1_1

14/016/2017 14:16:46 - INFO - Going to flash boot delivery

14/016/2017 14:16:46 - INFO - Opening TA partition 2

14/016/2017 14:16:46 - INFO - Processing emmc_appsboot_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:46 - INFO - Checking header

14/016/2017 14:16:46 - INFO - Flashing data

14/016/2017 14:16:46 - INFO - Closing TA partition

14/016/2017 14:16:46 - INFO - Opening TA partition 2

14/016/2017 14:16:46 - INFO - Flashing Yuga_S1BootConfig_MiscTA_121203_1222.ta to partition 2

14/016/2017 14:16:46 - INFO - Writing TA unit 0000084F. Value : 1A CE 24 00 01 00 05 05 00 02 02 1F 00 10 03 00 02 04 02 05 00 01 03 26 00 10 05 00 04 02 00 00 20 05 00 03 03 1D 00 10 1A 00 02 00 25 13 BE BA 25 13 00 00 26 13 BE BA 26 13 00 00 A9 09 BE BA A9 09 00 00 04 00 03 00 02 00 04 00 04 00 B0 04 0E 00 06 00 A0 0F 01 4B 00 00 00 03 96 00 2C 01

14/016/2017 14:16:46 - INFO - Writing TA unit 000008FD. Value : 00

14/016/2017 14:16:46 - INFO - Closing TA partition

14/016/2017 14:16:46 - INFO - Opening TA partition 2

14/016/2017 14:16:46 - INFO - Processing s1sbl2_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:46 - INFO - Checking header

14/016/2017 14:16:46 - INFO - Flashing data

14/016/2017 14:16:46 - INFO - Processing sbl1_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:46 - INFO - Checking header

14/016/2017 14:16:46 - INFO - Flashing data

14/016/2017 14:16:46 - INFO - Processing sbl2_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:46 - INFO - Checking header

14/016/2017 14:16:47 - INFO - Flashing data

14/016/2017 14:16:47 - INFO - Processing sbl3_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:47 - INFO - Checking header

14/016/2017 14:16:47 - INFO - Flashing data

14/016/2017 14:16:47 - INFO - Processing tz_signed_1.1.1_1_S1-BOOT-5CA3-0001-MMC.sin

14/016/2017 14:16:47 - INFO - Checking header

14/016/2017 14:16:47 - INFO - Flashing data

14/016/2017 14:16:49 - INFO - Closing TA partition

14/016/2017 14:16:49 - INFO - Opening TA partition 2

14/016/2017 14:16:50 - INFO - Closing TA partition

14/016/2017 14:16:50 - INFO - Opening TA partition 2

14/016/2017 14:16:50 - INFO - Processing amss_fs_1.sin

14/016/2017 14:16:50 - INFO - Checking header

14/016/2017 14:16:50 - INFO - Flashing data

14/016/2017 14:16:50 - INFO - Processing amss_fs_2.sin

14/016/2017 14:16:50 - INFO - Checking header

14/016/2017 14:16:50 - INFO - Flashing data

14/016/2017 14:16:50 - INFO - Processing amss_fs_3.sin

14/016/2017 14:16:50 - INFO - Checking header

14/016/2017 14:16:50 - INFO - Flashing data

14/016/2017 14:16:50 - INFO - Processing cache.sin

14/016/2017 14:16:50 - INFO - Checking header

14/016/2017 14:16:50 - INFO - Flashing data

14/016/2017 14:16:52 - INFO - Processing fotakernel.sin

14/016/2017 14:16:52 - INFO - Checking header

14/016/2017 14:16:52 - INFO - Flashing data

14/016/2017 14:16:53 - INFO - Processing kernel.sin

14/016/2017 14:16:53 - INFO - Checking header

14/016/2017 14:16:53 - INFO - Flashing data

14/016/2017 14:16:55 - INFO - Processing rpm.sin

14/016/2017 14:16:55 - INFO - Checking header

14/016/2017 14:16:55 - INFO - Flashing data

14/016/2017 14:16:55 - INFO - Closing TA partition

14/016/2017 14:16:55 - INFO - Opening TA partition 2

14/016/2017 14:16:55 - INFO - Processing system.sin

14/016/2017 14:16:55 - INFO - Checking header

14/016/2017 14:16:55 - INFO - Flashing data

14/021/2017 14:21:05 - INFO - Closing TA partition

14/021/2017 14:21:05 - INFO - Opening TA partition 2

14/021/2017 14:21:05 - INFO - Flashing cust-reset.ta to partition 2

14/021/2017 14:21:05 - INFO - Writing TA unit 000008A4. Value : 00 00 00 00 00 00 00 00 00 00 00 00 00 00

14/021/2017 14:21:05 - INFO - Flashing preset1.ta to partition 2

14/021/2017 14:21:05 - INFO - Writing TA unit 000008A4. Value : 00 00 00 00 00 00 00 00 00 00 00 00 00 00

14/021/2017 14:21:05 - INFO - Closing TA partition

14/021/2017 14:21:05 - INFO - Opening TA partition 2

14/021/2017 14:21:05 - INFO - Processing elabel-C6603-row_201310171741.1_10.5.1.A.0.292.sin

14/021/2017 14:21:05 - INFO - Checking header

14/021/2017 14:21:05 - INFO - Flashing data

14/021/2017 14:21:08 - INFO - Closing TA partition

14/021/2017 14:21:08 - INFO - Opening TA partition 2

14/021/2017 14:21:08 - INFO - Writing TA unit 00002725. Value : 32 30 31 37 2D 30 35 2D 31 34 20 31 34 3A 32 31 3A 30 38 00

14/021/2017 14:21:08 - INFO - Writing TA unit 00002774. Value : 00

14/021/2017 14:21:08 - INFO - Closing TA partition

14/021/2017 14:21:08 - INFO - Ending flash session

14/021/2017 14:21:08 - INFO - Flashing finished.

14/021/2017 14:21:08 - INFO - Please unplug and start your phone

14/021/2017 14:21:08 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings

14/021/2017 14:21:09 - INFO - Device connected in flash mode

14/021/2017 14:21:29 - INFO - Device disconnected

14/021/2017 14:21:45 - INFO - Device connected with USB debugging off

14/021/2017 14:21:45 - INFO - For 2011 devices line, be sure you are not in MTP mode

now it properly booted

ill try to flash the lollipop and make know if it will properly boot up