[Sony Cross-Device General] CheeChaChong:
Flashing doesn't work on XZ Premium

I tried to flash my Docomo SO-04J XZ Premium to (Generic UK/CE1 G8141 or G8188 Unbranded Japan) to remove carrier bloat and to free memory. But I'm stuck at this phase. I'm using the latest v20. Also tried with v18. Still with same roadblock

Tried restarting PC

Reinstalled Xperia Companion

Reinstall Fastboot and Flashmode Drivers (Disabed Windows driver enforcement)

Reinstalled Flashtool

Redownload firmwares

- Tried firmwares:

- G8141 UK

- G8141 CE1

- G8188 Japan unbranded

Here are the logs:

--------------------------------------------------------
newflasher.exe v20 by Munjeni @ 2017/2019
--------------------------------------------------------

Determining available free space by GetDiskFreeSpaceEx:

Available space to caller = 137060 MB
Total space on current drive = 299054 MB
Free space on drive = 137060 MB

Optional step! Type 'y' and press ENTER if you need GordonGate flash driver, or type 'n' to skip.
This creates GordonGate.7z archive in the same dir with newflasher.exe!
N
Device path: \\?\usb#vid_0fce&pid_b00b#6&1af949ec&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Class Description: SOMC Flash Device
Device Instance Id: USB\VID_0FCE&PID_B00B\6&1AF949EC&0&2

Optional step! Type 'y' and press ENTER if you want dump trim area, or type 'n' and press ENTER to skip.
Do in mind this doesn't dump drm key since sake authentifiction is need for that!
N

Optional step! Type 'y' and press ENTER if you need to flash bootloader,bluetooth,dsp,modem,rdimage to booth a,b slots, or type 'n' to skip.
By default it is NOT flashed to booth slots, do on your own risk!
N
Product: SO-04J
Version: 0.4-SONY-0.31
Bootloader version: 1306-5035_X_Boot_MSM8998_LA1.1_O_82
Baseband version: 1306-8493_47.1.F.1.105
Serialno: Hidden
Secure: yes
Loader version: XFL-MSM8998-N-47
Phone ID: Hidden
Device ID: A7B10500
Platform ID: 2005E0E1
Max download size: 104857600
Sector size: 4096
Rooting status: NOT_ROOTABLE
Ufs info: SAMSUNG,KLUCG4J1ED-B0C1,0200
Emmc info: FAILEmmc-info not supported
Default security: ON
Keystore counter: 1
Security state: Hidden
Sake root: D159
S1 root: S1_Root_e69c
Root key hash: Hidden
Slot count: 0
Current slot: F

Device is put now in flash mode.

Repartitioning...
Found partition_delivery.xml in partition folder.
Determining LUN0 size...
UFS raw data[0x112]:

00000000 40 00 00 00 00 00 06 04 01 00 01 05 00 01 04 00 @...............
00000010 02 10 05 17 00 01 02 03 01 CE 10 10 02 00 00 01 ................
00000020 01 20 00 00 20 00 00 00 00 00 04 00 00 00 00 00 . .. ...........
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000040 23 02 00 01 00 00 00 00 00 00 0C 00 00 00 00 00 #...............
00000050 CF 04 00 00 00 00 01 02 00 00 00 00 00 CF 04 00 ................
00000060 00 00 00 23 02 01 01 01 01 00 00 03 00 0C 00 00 ...#............
00000070 00 00 00 00 04 00 00 00 00 01 02 00 00 00 00 00 ................
00000080 00 04 00 00 00 00 23 02 02 01 02 01 00 00 03 00 ......#.........
00000090 0C 00 00 00 00 00 00 04 00 00 00 00 01 02 00 00 ................
000000A0 00 00 00 00 04 00 00 00 00 23 02 03 01 00 01 00 .........#......
000000B0 00 00 00 0C 00 00 00 00 00 00 04 00 00 00 00 01 ................
000000C0 02 00 00 00 00 00 00 04 00 00 00 00 23 02 04 01 ............#...
000000D0 00 01 00 00 00 00 0C 00 00 00 00 00 1F 40 00 00 .............@..
000000E0 00 00 01 02 00 00 00 00 00 1F 40 00 00 00 00 23 ..........@....#
000000F0 02 05 01 00 00 00 00 00 00 0C 00 00 00 00 00 00 ................
00000100 10 00 00 00 00 01 02 00 00 00 00 00 00 10 00 00 ................
00000110 00 00 ..

LUN0 size = 54267904

Processing partition-image-LUN0_X-FLASH-ALL-42E5.sin
- setting up infflate...
- infflating, please wait...

- infflate returned: 0
- gzpipe: ok.
- gunziped ok.
- Extracting from partition-image-LUN0_X-FLASH-ALL-42E5.sin
- Extracting signature partitionimage_0.cms
- Uploading signature C:\Users\cha\Desktop\XZP\G8188_MVNO SNC JP_1311-9136_47.2.E.3.29_R4C\partition\partitionimage_0.cms
signature:0000053e
Error, didn't got signature OKAY reply! Got reply: FAILFailed to verify cms

Device is put now out of flash mode.

End. You can disconnect your device when you close newflasher.exe
Press any key to continue . . .

Any help will be appreciated. Thank you!