[Sony Xperia X Performance Questions & Answers] 25agosto:
Hi, i'm trying to do this tutorial... Everytime i flash something, a write a "diary" of what i'm doing, just in case of problems. and this is that case.....

i have unlocked bootloader, and done root many months ago, never backup TA partition, so i know what it mean, and so, i've skip step 1 and start from 2.

installed flashtool 0.9.23.1

installed adb and fastboot drivers

enabled in developer debug usb and unknow sources and when connected phone to pc, allowed debug to pc, and allowed supersu to adb.

start flashtool

volume up and plug cable, blu led appear, flashtool says me to install driver from driver folder, installed only fastboot and flashtool drivers (i disabled verify of firma driver)

flashtool says device connected in fastboot. i think is not right, then unplug, volume down and plug, flashtool ays device connected in flash mode

click on flash, selected flashmode, selected right folder of .tft, and selected all the checkboes in wipe tab, and then click in flash.

02/009/2017 22:09:11 - INFO - Device connected in flash mode

02/009/2017 22:09:28 - INFO - Selected Bundle for Sony Xperia X Performance(F8131). FW release : 41.2.A.2.199_R2D. Customization : Switzerland Generic_1302-9924

02/009/2017 22:09:28 - INFO - Preparing files for flashing

02/009/2017 22:09:54 - INFO - Please connect your device into flashmode.

02/009/2017 22:09:54 - INFO - Opening device for R/W

02/009/2017 22:09:54 - INFO - Reading device information

02/009/2017 22:09:54 - INFO - Phone ready for flashmode operations.

02/009/2017 22:09:54 - INFO - Opening TA partition 2

02/009/2017 22:09:54 - INFO - Current device : F8131 - CB512AJSMZ - 1302-9940_R3C - 1300-5321_39.2.A.0.417 - GENERIC_39.2.A.0.417

02/009/2017 22:09:54 - INFO - Closing TA partition

02/009/2017 22:09:54 - INFO - Start Flashing

02/009/2017 22:09:54 - INFO - No loader in the bundle. Searching for one

02/009/2017 22:09:55 - INFO - No matching loader found

02/009/2017 22:09:55 - WARN - No loader found or set manually. Skipping loader

02/009/2017 22:09:55 - 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 : ROOTED

02/009/2017 22:09:55 - INFO - Max packet size set to 4M

02/009/2017 22:09:55 - INFO - USB buffer size set to 512K

02/009/2017 22:09:58 - INFO - Parsing boot delivery

02/009/2017 22:09:58 - INFO - No flash script found.

02/009/2017 22:09:58 - INFO - Flash script is mandatory. Closing session

02/009/2017 22:09:58 - INFO - Ending flash session

02/009/2017 22:09:58 - INFO - Flashing finished.

02/009/2017 22:09:58 - INFO - Please unplug and start your phone

02/009/2017 22:09:58 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings

02/009/2017 22:09:58 - INFO - Device connected in flash mode.

Tried this 3 times and still not working, So, i've downloaded the stock firmware directly from flashtool, took me 14mins, then retry to flash... i can't flash because the file downloaded is not a tft, and flashtool has extract it in a lot of files..... how can i flash stock rom?!?! i'm wrong?