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[Q] FlashTool: Downgrade not working

Hi all,
I'm trying to downgrade my stock Lollipop ROM (23.1.A.1.28) in order to root it afterwards. I'm using FlashTool 0.9.8.15 on Linux, and it seems to work correctly - but the downgrade fails
Here's the log output of FlashTool:
Code:
30/009/2015 10:09:57 - INFO - Device connected in flash mode
30/010/2015 10:10:07 - INFO - Selected Bundle for Sony Xperia Z3 (D6603). FW release : 23.0.A.2.93. Customization : Generic GLOBAL
30/010/2015 10:10:07 - INFO - Preparing files for flashing
30/010/2015 10:10:40 - ERROR - No space left on device
30/010/2015 10:10:40 - INFO - Cannot open bundle. Flash operation canceled
30/010/2015 10:10:58 - INFO - Device disconnected
30/011/2015 10:11:10 - INFO - Device connected with USB debugging on
30/011/2015 10:11:11 - INFO - Connected device : Sony Xperia Z3
30/011/2015 10:11:11 - INFO - Installed version of busybox : N/A
30/011/2015 10:11:11 - INFO - Android version : 5.0.2 / kernel version : 3.4.0-perf-g4d6e88e / Build number : 23.1.A.1.28
Opening that FileCommander coming with the ROM I get the info that there's 11.6 GB free on the phone and all 59,4 GB on the SD card. So - how's this??? And (more important): How to fix it?
Thanks for your kind help

Where have you stored the FTF?

Argh, the problem was so easy to solve - I just had to understand that error message - my hard drive simply got filled up when FlashTool tried to unpack the FTF :-/

Hi, I'm trying to do the same thing. I'm using flashtool 0.9.18.6 on windows 8 computer. I keep getting an error prompt stating "processing of loader.sin finished with errors."

Iceberg1914 said:
Hi, I'm trying to do the same thing. I'm using flashtool 0.9.18.6 on windows 8 computer. I keep getting an error prompt stating "processing of loader.sin finished with errors."
Click to expand...
Click to collapse
Please double check FTF integrity.
If necessary, downlaod a fresh uncorrupted FTF

[Completed] Xperia M C1905 Flashtool Flashing But Nothing Happens

So I have a Xperia M C1905 nicki.
Just unlocked the bootloader, but got into a bootloop, which I knew was going to happen,
I installed TWRP, and tried to reflash the stock ftf:
23/009/2015 16:09:35 - INFO - Device connected in flash mode
23/009/2015 16:09:42 - INFO - Selected Bundle for Sony Xperia M (C1905). FW release : 15.4.A.1.9. Customization : CE
23/009/2015 16:09:42 - INFO - Preparing files for flashing
23/009/2015 16:09:50 - INFO - Please connect your device into flashmode.
23/009/2015 16:09:50 - INFO - Opening device for R/W
23/009/2015 16:09:50 - INFO - Reading device information
23/009/2015 16:09:50 - INFO - Phone ready for flashmode operations.
23/009/2015 16:09:50 - INFO - Opening TA partition 2
23/009/2015 16:09:50 - INFO - Current device : Unknown: May 9 2014/12:58:25 - YT910BPCCA - Unknown: May 9 2014/12:58:25 - Unknown: May 9 2014/12:58:25 - Unknown: May 9 2014/12:58:25
23/009/2015 16:09:50 - INFO - Closing TA partition
23/009/2015 16:09:50 - INFO - Start Flashing
23/009/2015 16:09:50 - INFO - Processing loader.sin
23/009/2015 16:09:50 - INFO - Checking header
23/009/2015 16:09:50 - INFO - Flashing data
23/009/2015 16:09:51 - INFO - Loader : S1_Root_dbe9 - Version : loader_MSM8X30_10 / Boot version : S1_Boot_MSM_8227_5 / Bootloader status : ROOTED
23/009/2015 16:09:51 - INFO - Transfer buffer size : 262144
23/009/2015 16:09:51 - INFO - Parsing boot delivery
23/009/2015 16:09:51 - INFO - You must have the according fsc script to flash this device.
23/009/2015 16:09:51 - INFO - Flashing finished.
23/009/2015 16:09:51 - INFO - Please unplug and start your phone
23/009/2015 16:09:51 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
And basically nothing happens...
I did a factory reset. After that tried to flash .zip stock 4.3 rom and got the error from TWRP:
E: Error executing updater binary in *insert .zip name here*
Did a bit of research and found that I need to flash the firmware to fix that, and since I can't do that through flashtool for some reason, I wanted to ask if someone has the solution or can help me with this problem (My phone is like a brick with twrp and being able to go in to fastboot/flashmode)?
Thanks for your time spent reading this.

MrFlashochol said:
So I have a Xperia M C1905 nicki.
Just unlocked the bootloader, but got into a bootloop, which I knew was going to happen,
I installed TWRP, and tried to reflash the stock ftf:
,,,
And basically nothing happens...
I did a factory reset. After that tried to flash .zip stock 4.3 rom and got the error from TWRP:
E: Error executing updater binary in *insert .zip name here*
Did a bit of research and found that I need to flash the firmware to fix that, and since I can't do that through flashtool for some reason, I wanted to ask if someone has the solution or can help me with this problem (My phone is like a brick with twrp and being able to go in to fastboot/flashmode)?
Thanks for your time spent reading this.
Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
Sorry to hear about your trouble but fortunately there is an XDA area dedicated to the Sony Xperia M at http://forum.xda-developers.com/xperia-m which would be a good starting place. I suggest you post your question with all relevant details in the friendly Q&A forum there at http://forum.xda-developers.com/xperia-m/help where the experts familiar with your device will be best able to guide you.
Good luck!

What i am missing? - SOLVED

Hello all!
I try to flash a .ftf file as i used Xperiafirm to download the new version of android (7) but after Flashtool made the ftf file, i connect my mobile in flashmode and i select to flash it...so far it turns me this and nothing been flashed
01/014/2017 18:14:35 - INFO - <- This level is successfully initialized
01/014/2017 18:14:36 - INFO - Flashtool Version 0.9.23.2 built on 19-01-2017 21:50:00
01/014/2017 18:14:36 - INFO - Executing search strategies to find proxy selector
01/014/2017 18:14:37 - INFO - No proxy found for IE. Trying next one
01/014/2017 18:14:37 - INFO - Strategy firefox failed trying next one : No Firefox installation found
01/014/2017 18:14:37 - INFO - No proxy found for java. Trying next one
01/014/2017 18:14:37 - INFO - Syncing devices from github
01/014/2017 18:14:37 - INFO - Opening devices repository.
01/014/2017 18:14:37 - INFO - Scanning devices folder for changes.
01/014/2017 18:14:49 - INFO - Pulling changes from github.
01/014/2017 18:14:49 - INFO - Quietly closing devices repository.
01/014/2017 18:14:49 - INFO - Devices sync finished.
01/014/2017 18:14:49 - INFO - Loading devices database
01/014/2017 18:14:49 - INFO - Loaded 94 devices
01/014/2017 18:14:49 - INFO - Starting phone detection
01/014/2017 18:14:54 - INFO - Device connected in flash mode
01/015/2017 18:15:13 - INFO - Selected Bundle for Sony Xperia XZ(F8331). FW release : 41.2.A.2.199. Customization : Virgin Mobile UK
01/015/2017 18:15:13 - INFO - Preparing files for flashing
01/015/2017 18:15:45 - INFO - Please connect your device into flashmode.
01/015/2017 18:15:46 - INFO - Opening device for R/W
01/015/2017 18:15:46 - INFO - Reading device information
01/015/2017 18:15:46 - INFO - Phone ready for flashmode operations.
01/015/2017 18:15:46 - INFO - Opening TA partition 2
01/015/2017 18:15:46 - INFO - Current device : F8331 - CB512CRLKR - 1305-2216_R5C - 1302-9157_39.2.A.0.442 - GENERIC_39.2.A.0.442
01/015/2017 18:15:46 - INFO - Closing TA partition
01/015/2017 18:15:46 - INFO - Start Flashing
01/015/2017 18:15:46 - INFO - No loader in the bundle. Searching for one
01/015/2017 18:15:46 - INFO - No matching loader found
01/015/2017 18:15:46 - WARN - No loader found or set manually. Skipping loader
01/015/2017 18:15:46 - INFO - Loader : S1_Root_de8d - Version : 1299-4832_S1_Boot_MSM8996_LA2.0_N_110 / Boot version : 1299-4832_S1_Boot_MSM8996_LA2.0_N_110 / Bootloader status : ROOTABLE
01/015/2017 18:15:46 - INFO - Max packet size set to 4M
01/015/2017 18:15:46 - INFO - USB buffer size set to 512K
01/015/2017 18:15:51 - INFO - Parsing boot delivery
01/015/2017 18:15:51 - INFO - No flash script found.
01/015/2017 18:15:51 - INFO - Flash script is mandatory. Closing session
01/015/2017 18:15:51 - INFO - Ending flash session
01/015/2017 18:15:51 - INFO - Flashing finished.
01/015/2017 18:15:51 - INFO - Please unplug and start your phone
01/015/2017 18:15:51 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
01/015/2017 18:15:51 - INFO - Device connected in flash mode
Click to expand...
Click to collapse
Now my question is, what did i do wrong, or what shall i do to make it work the flashtool?
Thanks in advance!
UPDATE
Problem solved
Requirements:
- Make sure you know what to do otherwise leave this post because if you point at me as i brick your phone, i will laugh at you as long YOUR phone is on your hand and not on mine
- Have a Laptop/PC plug it into socket wall
- Flashtool installed
- Xperifirm laters version installed
- Permission to install UNSIGNED DRIVERS
- USB Drivers installed
- Phone battery charged from 75% or more, NO LESS THAN THAT
- USB Cable
- Attention and patience
If you want to flash on your XZ device the NEW ftf file which is 41.2.A.2.199 here are the steps on HOW TO DO IT
1. Open Flashtool
2. Click XperiFirm icon
3. Go to your Mobile model located on Smartphone (2016) and click Xperia XZ Kagura
4. Select the right model number
5. In the middle select the Operator name you want the firmware from and on left side it will show what version is available
6. Once you decided click on the version of the firmware and select Download
7. Wait until the download is done, then also let Flashtool to create the FTF file for you
8. Open My Computer go to C:\Users\(your name)\.flashTool\devices\ and open the folder with your model number (in my case was F83xx)
9. Locate the file 39.fsc, copy it and paste into My Devices, then RIGHT CLICK ON IT AND RENAME IT TO 41.fsc
10. Go Back to the Device folder into your model number and do the same renaming the 39.fsc file to 41.fsc
11. Open Flashtool, select Flashmode and click OK where it pops up the warning
12. On Firmware Selector go where you have the file FTF file and select it
13. Turn off your phone , hold down VOLUME DOWN KEY and plug the cable into your mobile (it will say Device connected in flashmode and a green light you can notice on your led)
14. Click Flash and choose OK if during the flash will pop any warnings (it asks you if you want to continue, so you need to confirm it)
15. Wait until is done, unplug the mobile and turn it on, also wait up to 5 minutes for your mobile to boot as it take longer time having a new OS is like you turn on for the very first time.

Hellspawm said:
Hello all!
I try to flash a .ftf file as i used Xperiafirm to download the new version of android (7) but after Flashtool made the ftf file, i connect my mobile in flashmode and i select to flash it...so far it turns me this and nothing been flashed
Now my question is, what did i do wrong, or what shall i do to make it work the flashtool?
Thanks in advance!
Click to expand...
Click to collapse
It seems that this ftf is broken, it says that there's nothing to flash, what's the size of the ftf ?

You need flash script. (fsc file inside ".flashtool/devices/f83xx)
If you want to flash android 7.1.1 (fw 41) rename 39.fsc to 41.fsc and start flash ftf.
after flashing start maybe seen pop-up say: flash script not contain kernel-cmd... continue?
select "YES"

GenomeX said:
You need flash script. (fsc file inside ".flashtool/devices/f83xx)
If you want to flash android 7.1.1 (fw 41) rename 39.fsc to 41.fsc and start flash ftf.
after flashing start maybe seen pop-up say: flash script not contain kernel-cmd... continue?
select "YES"
Click to expand...
Click to collapse
It works, just you should be a bit more clear as i needed to copy from device folder the 39.fsc and paste into My Device folder then rename it to 41.fsc and after that to go back in Device folder and rename it also to 41.fsc the one who was 39.fsc
Thanks button hit, my regards!

fastbooking said:
It seems that this ftf is broken, it says that there's nothing to flash, what's the size of the ftf ?
Click to expand...
Click to collapse
is 2.66 Gb the size and is official launched on Virgin Media UK
I manage to flash it, it was all about to rename a file into .flashtool folder (instead 39.fsc should be 41.fsc in device and my device folders), so the ftf file was not broken

not working with f8132

Trying to flash the new Oreo update to my XZ(F8331) but i keep getting the "ERROR - Processing of fotakernel.sin finished with errors". Any help is greatly appreciated.
EDIT: nmv, Xperia companion fixed it

Hi guys, I've the same problem with the same messages but I've a XA1 Ultra, can someone tell me what can I do to solve it?
INFO - No loader in the bundle. Searching for one
INFO - No matching loader found
WARN - No loader found or set manually. Skipping loader

Can't flash stock firmware

Hello,
I am trying to flash stock firmware to my xperia j because my sim doesn't work on custom rom. However when i try to flash i get this error rocessing of loader.sin finished with errors.
this is my full log:
07/033/2017 17:33:16 - INFO - Selected Bundle for Sony Xperia J(ST26i). FW release : 11.2.A.0.31. Customization : Cosmote GR
07/033/2017 17:33:16 - INFO - Preparing files for flashing
07/033/2017 17:33:19 - INFO - Please connect your device into flashmode.
07/033/2017 17:33:28 - INFO - Device connected in flash mode
07/033/2017 17:33:29 - INFO - Opening device for R/W
07/033/2017 17:33:29 - INFO - Reading device information
07/033/2017 17:33:29 - INFO - Unable to read from phone after having opened it.
07/033/2017 17:33:29 - INFO - trying to continue anyway
07/033/2017 17:33:29 - INFO - Phone ready for flashmode operations.
07/033/2017 17:33:29 - INFO - Opening TA partition 2
07/033/2017 17:33:29 - INFO - Start Flashing
07/033/2017 17:33:29 - INFO - Processing loader.sin
07/033/2017 17:33:29 - INFO - Checking header
07/033/2017 17:33:29 - ERROR - Processing of loader.sin finished with errors.
07/033/2017 17:33:29 - INFO - Ending flash session
07/033/2017 17:33:29 - ERROR - Error in processHeader : 1 : Εσφαλμένη λειτουργία.
07/033/2017 17:33:29 - ERROR - Error flashing. Aborted
07/033/2017 17:33:29 - INFO - Device connected in flash mode
07/034/2017 17:34:17 - INFO - Device disconnected
07/034/2017 17:34:26 - INFO - Device connected with USB debugging off
07/034/2017 17:34:26 - INFO - For 2011 devices line, be sure you are not in MTP mode
07/034/2017 17:34:29 - INFO - Device disconnected
I have installed all the drivers and i have tried to bundle loader.sin with the ftf. I am trying to restore either to an ics stock rom or the latest. What can i do?

Check everything..
1. Batrey
2.USB
3.FTF file.
Flashing : https://www.youtube.com/watch?v=SNLRF4D8fIw
Firmware Downloader: https://forum.xda-developers.com/cr...xperifirm-xperia-firmware-downloader-t2834142

Codetrr said:
Check everything..
1. Batrey
2.USB
3.FTF file.
Flashing : https://www.youtube.com/watch?v=SNLRF4D8fIw
Firmware Downloader: https://forum.xda-developers.com/cr...xperifirm-xperia-firmware-downloader-t2834142
Click to expand...
Click to collapse
Well my phone boots up ok to a flashed rom (no SIM card detection unfortunately ) and when i connect it to my pc i check the drivers with flashtool and they seem to be ok. I have also tried with multiple ftf files and i have redownloaded many times... :crying:

fothot said:
Well my phone boots up ok to a flashed rom (no SIM card detection unfortunately ) and when i connect it to my pc i check the drivers with flashtool and they seem to be ok. I have also tried with multiple ftf files and i have redownloaded many times... :crying:
Click to expand...
Click to collapse
So the problem now is the sim card?
Check:
On about phone
1.Baseband
2.Imei

Codetrr said:
So the problem now is the sim card?
Check:
On about phone
1.Baseband
2.Imei
Click to expand...
Click to collapse
I have the baseband uknown, IMEI vanished problem and i have read that you must downgrade to ICS before flashing any rom to solve this problem but i can't flash neither ICS or JB. I can flash custom roms from my recovery unfortunately i don't have sim support

you can try custom rom jb based, like seraphic ,

Codetrr said:
you can try custom rom jb based, like seraphic ,
Click to expand...
Click to collapse
I have flashed multiple jb based roms. Many of them (including seraphic) instructs to downgrade to ICS first which i can't.....

fothot said:
I have flashed multiple jb based roms. Many of them (including seraphic) instructs to downgrade to ICS first which i can't.....
Click to expand...
Click to collapse
no.no.no ....
check this
serapic 8 https://forum.xda-developers.com/xp...rom-seraphic-season-4-intuisy-kernel-t2752732
serpaic 7 https://satriodwiprabowo.blogspot.co.id/2014/10/seraphic-season-7-xperia-j-jellybean.html

Codetrr said:
no.no.no ....
check this
serapic 8 https://forum.xda-developers.com/xp...rom-seraphic-season-4-intuisy-kernel-t2752732
serpaic 7 https://satriodwiprabowo.blogspot.co.id/2014/10/seraphic-season-7-xperia-j-jellybean.html
Click to expand...
Click to collapse
well i flashed seraphic 7 and now despite getting my sim recognized it always tells me that unfortunately android.process.acore has stopped. this can only be stopped if i disable contacts storage which breaks the phone functionality. I had the same outcome with avd rom. It seems also that seraphic depends on the firmware you previously had because it seems it doesn't completely install itself. i ended up having my previous rom with the seraphic reason for no reason.

Stock Deodex?

Codetrr said:
Stock Deodex?
Click to expand...
Click to collapse
Well i partially solved this problem. I managed to flash seraphic and it works. However the main problem perists. I am unable to flash with flashtool. Thanks for the help my phone is now working again.

fothot said:
Well i partially solved this problem. I managed to flash seraphic and it works. However the main problem perists. I am unable to flash with flashtool. Thanks for the help my phone is now working again.
Click to expand...
Click to collapse
:fingers-crossed:
seraphic version?

Codetrr said:
:fingers-crossed:
seraphic version?
Click to expand...
Click to collapse
seraphic v7

Well, this topic about Can't flash stock firmware. So, there's no problem! I use an older Sony Mobile flasher by Androxyde Version 0.9.18.5 . So, I flashed with less errors by launching FlashTool.exe (not FlashTool64.exe . FlashTool64.exe can cause some errors when ur pc is 32 bit). Tested with XPERIA E and XPERIA J but works flawlessly! Amazing!. So here is the log on using latest FlashTool 0.9.23.2
08/050/2017 16:50:01 - INFO - <- This level is successfully initialized
08/050/2017 16:50:04 - INFO - Flashtool Version 0.9.23.2 built on 19-01-2017 21:50:00
08/050/2017 16:50:04 - INFO - Executing search strategies to find proxy selector
08/050/2017 16:50:05 - INFO - No proxy found for IE. Trying next one
08/050/2017 16:50:05 - INFO - No proxy found for firefox. Trying next one
08/050/2017 16:50:05 - INFO - No proxy found for java. Trying next one
08/050/2017 16:50:06 - INFO - Syncing devices from github
08/050/2017 16:50:06 - INFO - Opening devices repository.
08/050/2017 16:50:06 - INFO - Scanning devices folder for changes.
08/050/2017 16:50:22 - INFO - Pulling changes from github.
08/050/2017 16:50:24 - INFO - Quietly closing devices repository.
08/050/2017 16:50:24 - INFO - Quietly closing devices repository.
08/050/2017 16:50:24 - WARN - close() called when useCnt is already zero
08/050/2017 16:50:24 - INFO - Devices sync finished.
08/050/2017 16:50:24 - INFO - Loading devices database
08/050/2017 16:50:24 - INFO - Loaded 94 devices
08/050/2017 16:50:24 - INFO - Starting phone detection
08/050/2017 16:50:29 - INFO - Device disconnected
08/050/2017 16:50:46 - INFO - Selected Bundle for Sony Xperia E(C1505). FW release : 11.3.A.2.33. Customization : CE
08/050/2017 16:50:46 - INFO - Preparing files for flashing
08/051/2017 16:51:19 - INFO - Please connect your device into flashmode.
08/051/2017 16:51:22 - INFO - Device connected in flash mode
08/051/2017 16:51:22 - INFO - Opening device for R/W
08/051/2017 16:51:23 - INFO - Reading device information
08/051/2017 16:51:23 - INFO - Phone ready for flashmode operations.
08/051/2017 16:51:23 - INFO - Opening TA partition 2
08/051/2017 16:51:23 - INFO - Current device : semcsdk - - Unknown: Feb 19 2013/08:44:29 - 1267-9537_2.5.J.2.47 - Unknown: Feb 19 2013/08:44:29
08/051/2017 16:51:23 - INFO - Closing TA partition
08/051/2017 16:51:23 - INFO - Start Flashing
08/051/2017 16:51:23 - INFO - Processing loader.sin
08/051/2017 16:51:23 - INFO - Checking header
08/051/2017 16:51:23 - INFO - Flashing data
08/051/2017 16:51:25 - INFO - Loader : S1_Root_a8a4 - Version : R5D030 / Boot version : R10D030 / Bootloader status : UNROOTABLE
08/051/2017 16:51:25 - INFO - Max packet size set to 64K
08/051/2017 16:51:25 - INFO - USB buffer size set to 512K
08/051/2017 16:51:26 - INFO - Ending flash session
08/051/2017 16:51:27 - ERROR - null
08/051/2017 16:51:27 - ERROR - Error flashing. Aborted
08/051/2017 16:51:27 - INFO - Device connected in flash mode
08/051/2017 16:51:28 - INFO - Device disconnected
So I faced that issue. Hope that this issue will be fixed.,.,.,.,.,.,

Can't downgrade to MM

Hi,
I want to downgrade my XZ to Marshmallow for unlock the bootloader and install the new Android 8.0 ROM.
When i tried to flash appears this:
14/026/2017 19:26:26 - INFO - Device connected in flash mode
14/026/2017 19:26:42 - INFO - Selected Bundle for Sony Xperia XZ(F8331). FW release : 39.0.A.3.30_R6B. Customization : Central Europe 1 Generic_1304-9023
14/026/2017 19:26:42 - INFO - Preparing files for flashing
14/028/2017 19:28:15 - INFO - Please connect your device into flashmode.
14/028/2017 19:28:16 - INFO - Opening device for R/W
14/028/2017 19:28:16 - INFO - Device ready for R/W.
14/028/2017 19:28:16 - INFO - Reading device information
14/028/2017 19:28:16 - INFO - Phone ready for flashmode operations.
14/028/2017 19:28:16 - INFO - Opening TA partition 2
14/028/2017 19:28:16 - INFO - Current device : F8331 - CB512BLCJM - 1304-9023_R1D - 1302-9157_41.2.A.7.8 - GENERIC_41.2.A.7.8
14/028/2017 19:28:16 - INFO - Closing TA partition
14/028/2017 19:28:16 - INFO - Start Flashing
14/028/2017 19:28:16 - INFO - No loader in the bundle. Searching for one
14/028/2017 19:28:16 - INFO - No matching loader found
14/028/2017 19:28:16 - WARN - No loader found or set manually. Skipping loader
14/028/2017 19:28:16 - INFO - Loader : S1_Root_de8d - Version : 1299-4832_S1_Boot_MSM8996_LA2.0_N_116 / Boot version : 1299-4832_S1_Boot_MSM8996_LA2.0_N_116 / Bootloader status : ROOTABLE
14/028/2017 19:28:16 - INFO - Max packet size set to 4M
14/028/2017 19:28:17 - INFO - USB buffer size set to 512K
14/028/2017 19:28:18 - INFO - Parsing boot delivery
14/028/2017 19:28:18 - INFO - No flash script found.
14/028/2017 19:28:18 - INFO - Flash script is mandatory. Closing session
14/028/2017 19:28:18 - INFO - Ending flash session
14/028/2017 19:28:18 - INFO - Flashing finished.
14/028/2017 19:28:18 - INFO - Please unplug and start your phone
14/028/2017 19:28:18 - INFO - For flashtool, Unknown Sources and Debugging must be checked
Click to expand...
Click to collapse
What i need to do for flash MM or unlock the bootloader?

You don't need to downgrade to MM to install 8.0 and to unlock your bootloader go to the Sony website and follow the instructions but don't forget to backup your TA partition first you will need to search XDA to see how to do that.

You need to downgrade to MM to backup TA partition thou.
Error is "No flash script".
Did you press no when the prompt come out?
If you download from Xperia firm, you need to redownload it again, then exit, flashtool will ask to run the script or not, press yes.

got the same problem. can anybody help? cant do TA Backup otherwise.
Edit: https://forum.xda-developers.com/xp...-flashtool-t3525167/post70239473#post70239473
this solution for people trying to get Android 7 worked for me, getting the flash script for MM!

Are you using the last flashtools version (0.9.23.2)? The best firmware to backup your TA keys is 39.0.A.1.250.... The firmware that are you trying to flash is not able to make your TA backup. After that you must unlock the bootloader with flashtools ( the app send you the sony site with tutorial ). After that you should be able to flash the Android 8 images. It's better flash Twrp too... I hope helped you.

chrispearson said:
You don't need to downgrade to MM to install 8.0 and to unlock your bootloader go to the Sony website and follow the instructions but don't forget to backup your TA partition first you will need to search XDA to see how to do that.
Click to expand...
Click to collapse
you can backup your ta on oreo???
it is mandatory to downgrade to mm for backing up your ta!