[Sony Xperia T, TL, TX, V] TodorSRB:
THE PROBLEM:The phone isn't detected as Xperia V in CWM/Fastboot

Bootloader Status:

(bootloader) Unlock phone requested

FAILED (remote: Phone is already unlocked!)

finished. total time: 0.016s

When flashing a kernel:

creating boot image...

creating boot image - 10567680 bytes

downloading 'boot.img'...

(bootloader) USB download speed was 16384kB/s

OKAY [ 0.672s]

booting...

FAILED (remote: Wrong range:0x10008000-0x10a1b298. Ok:0x80208000 - 0x8dcfff)

finished. total time: 0.688s

The RED means that the Kernel you are trying to install isn't for your device(In this case Xperia V/LT25i/Tsubasa), but it in my case IT WAS the right kernel for the device.

Message I got when installing ROM:

This package is for device: LT25i, tsubasa; this device is MINT(Xperia T).

This was due to recovery was for Xperia T

THE FIX:

Back up your media if you didn't!

Before I started messing with ROOT, Unlocking Bootloader I made a backup of my TA keys(VERY IMPORTANT) using Backup-TA-9.11

The first thing you need to is(if you have a TA Backup) is download the official .FTF for your device and flash it using Flashtool app and Flash mode to restore your device completely to stock, after you did so. Recover you TA Backup(if you have one), THIS WILL RELOCK YOUR BOOTLOADER. After doing so repair your phone with PC Companion. So now you have your device as new.

IF YOU DON'T HAVE TA BACKUP

Download official .FTF for your device(Xperia only of course), flash it using Flashtool and then continue to the next step(YOU CAN'T repair you phone using PC Companion if your BL is unlocked)

It's recommended to remove everything from you INTERNAL STORAGE(format from Settings) and remove SD Card(if you have any).

Now you have to Unlock you Bootloader again by going to offical Sony Bootloader Unlock website, BUT don't unlock it using SDK Fastboot, UNLOCK IT using Flashtool BLU button.

After that restart your phone, set up everything again(Set Up guide) and transfer(in my case was CM11) your ROM to Internal Storage. After doing so download PhilZ Touch Recovery file = XT-lockeddualrecovery2.7.154-BETA.installer.zip (23.47MB) and follow the Instructions how to install the recovery.

After doing so comes the Kernel part (IMPORTANT!)

DO NOT FLASH USING FASTBOOT IN SDK(platform-tools)

Extract boot.img from the rom's .zip file(in my case cm-11-20141112-SNAPSHOT-M12-tsubasa.zip) to Desktop(or any place that fits you)

Turn off your phone and connect it to fastboot mode(Volume Up while plugging in the USB to the phone), click the Lightning bolt in Flashtool and select fastboot mode, after doing so click Flash Kernel and find the place where you placed it, in pop up menu select *.img and choose boot.img, you should get OKAY message if flashing went with no problems. Plug off the phone from the computer.

Turn it on and keep pressing Volume up until you get to recovery, you should be in PhilZ touch recovery, now go to wipe data/factory reset and select Clean for New ROM and tap OK. After this you should go to Install zip from sdcard0 and select your ROM zip, if everything is successful, then CONGRATS. You have successfully fixed this annoying problem and can install custom kernels and roms. CHEERS :)