[General Questions and Answers] TKBS_UnrealEngine:
Hi all, Forgive me for my confusion.

Name: TKBS (New to root etc)

Sony:Xperia L2, Latest Software & update

Bootloader: Unlocked

AIM/GOAL: Re-lock Bootloader, return phone to original state (without killing phone, before 12noon 25th june UK)

What i have done:

- I spent numerous days researching before i attempted to unlock the Bootloader on my new Xperia L2.

The bootloader has been unlocked

After unlocking it (which initially failed numerous times, tried many different fastboot and device driver downloads) i then read about a "TA.img" and Sony "DRM keys".

- Well i guess its too late for that Sony Specific Stuff now, since it looks like that stuff needs a backup before unlocking the bootloader, however, every guide stated "to make a full system backup you need a rooted phone, which needs an unlocked bootloader to be rooted".

I would simply like to re-lock my bootloader and send the phone back to the store (not happy with device), but i do not want to be simply given a link to a guide that will give me the same negative experiences as i have had before.

* I need a guaranteed 100% fool proof-noob files and guide/ support to ensure my phone is returned to its Locked bootloader without killing the phone, i would appreciate any support for this..

- If i am correct i now need to root the phone and flash it with an official Sony ROM ??

Here is a list of links and guides i have already looked at or used:

https://easy-firmware.com/home/browse/category/id/32512/

http://www.flashtool.net/downloads_windows.php

https://xdaforums.com/xperia-z4/general/guide-safe-bootloader-unlock-restore-t3386915

https://xdaforums.com/xperia-z/orig-development/tool-z-flashtool-version-0-9-11-0-t2162907

https://xdaforums.com/showthread.php?p=45653511#post45653511

https://twrp.me/app/

https://www.digitbin.com/sony-xperia-xz-unlock-bootloader-flash-twrp/

https://www.kingoapp.com/root-tutorials/how-to-unlock-bootloader-on-sony-phones.htm

Current Tools/ Downloads:

Sony PC Companion

TWRP for Sony L2??? --> "twrp-3.2.1-0-taoshan.img"

Latest Flash Tool??? ---> "flashtool-0.9.25.0-windows.exe"

UniversalAdbDriverSetup

CarbonSetup.msi

KingoRoot.apk

Helium_com.koushikdutta.backup.apk

dr.fone_com.wondershare.drfone.apk

RomasterSu_3.4.5_170811T1200_2075_r.apk

Magisk-v16.0.zip/ Magisk-uninstaller-20180429/ Mount-Magisk

Please do not send a barrage of comments about how i am stupid or how i have missed a link or a guide. As you can see from above, Sony l2 is not as simple to do this process with as other phones, and for a new person who has already basically ruined a new phone those comments will not help.. I am currently overwhelmed :)

Many Thanks in advance,

TKBS

End Notes:

I originaly wanted to backup my entire phone as brand new. It looked like i needed to unlock the bootloader, Root phone, install software for backup, backup the phone, then use the backup to return it to original state. I then learnt, after the bootloader was unlocked, it effects sony phones in some special way (deleted keys or something). I now want to return my phone back to normal. It is my understanding that i may need to "flash" a Stock Sony Rom onto the phone to do this, but i will mess this up without 100% knowledge and undertsanding, which is why am i here.