Develop Bugs

How to downgrade to the stock ROM on the Xperia ARC

Hi,
I am currently using CM9 on my Xperia ARC, there are certain bugs which disallow me to use my Video camera and there are some WiFi issues too. Since the official ICS update is already out for the Xperia Arc, I wanted to rollback to the stock OS.
Can someone please guide me through the entire process or even point out to a post on this forum that will help me in doing so.
I went across many suggested post but there were none for the Xperia ARC.
Thank You.

This is the latest framework for xperia ARC " NOT ARC S "
http://www.mediafire.com/?rtoaz2tc6c7bsjc
simply .. download , extract , flash through flashtool .. It contains baseband , kernel and ROM, all in one =)
BTW , It's not Rooted since It's the latest Official framework
Use the Search button for the Root ..
regards ..

I think the user above means firmware, not framework.
Anyway it's easy, just use Flashtool and official FTF file. As you said you were running CM9 you must already have an unlocked bootloader. These steps are for unlocked bootloader phone and this is how I did it on my Xarc.
Go to this thread:
http://forum.xda-developers.com/showthread.php?t=1330314
and download official LT15i 4.1.B.0.431 Generic Global World (big bold letters, you can't miss it in post #1)
Unrar this file to get the official Sony 4.0.4 FTF.
Then go to:
http://androxyde.github.com/Flashtool/
Click the tab that says "Installation".
(I assume you are running MS Windows)
Download Full Install, Windows Edition - v0.8.0.0
Download Updates, Windows Edition - v0.8.5.0
On your computer run installer v0.8.0.0 first, then run v0.8.5.0 to make it the latest version of Flashtool. Flashtool by default installs to c:\flashtool and doesn't create a shortcut in start menu, so you will have to find it with file explorer (My Computer).
Power off phone. Do not connect data cable yet!
Run Flashtool.
Drag the FTF file onto the Flashtool window.
In the window that appears, leave everything as is, but tick "No final verification" in the bottom right corner.
Click "OK" and wait a few seconds.
When the message appears, hold down the back button on your phone and insert the data cable.
Notification LED should turn green and Flashtool begins flashing the firmware.
Wait until flashing is complete. Flashtool will say "Ending flash session" and say something about phone rebooting when it is finished. Wait about a minute after these messages appear and you can then unplug the data cable.
Now for Clockworkmod:
Go to:
http://forum.xda-developers.com/showthread.php?t=1680793
and download LT15i Arc v2 from first post.
This is the stock kernel with CWM added.
With phone powered off, hold down menu button and insert data cable. Notification LED should turn blue.
Run Flashtool. Flashtool should say "Device connected in fastboot mode"
Click the button in Flashtool which looks like a lightning bolt (the button furthest to the left.) Tick "Fastboot mode" and click OK.
On right side "Select Kernel to flash", find the kernel with CWM you just downloaded and "Open" it.
Kernel flashes in just a few seconds.
You can now unplug data cable and start up the phone. You can give a quick run through the start up settings, language selection etc. before we root. (The only real reason I said to start up the phone is to make it easier to transfer the Superuser install zip to your sdcard from Windows.)
Now root:
Go to:
http://androidsu.com/superuser/
and download Superuser-3.0.7-efghi-signed.zip
from the Eclair/Froyo/Gingerbread/Honeycomb/IceCreamSandwich (2.1 – 4.0.3) section.
In the settings menu of your phone: Menu > Settings > Xperia > Connectivity > USB coonection mode: Choose Mass storage mode (MSC)
Connect the data cable.
When your sdcard appears as a drive in Windows, copy the Superuser-3.0.7-efghi-signed.zip file onto it.
Unplug data cable and power off your phone.
It's important to watch the notification LED for the next bit!
With phone off press the power button as normal when turning on.
Once the Sony logo appears, watch the LED.
When LED turns blue start pressing the Menu button. You have less than 3 seconds to do this!
This takes you into the Clockworkmod recovery.
Use volume up/down move up and down. To confirm use Home button.
Select "Install zip from sdcard" > "Choose zip from sdcard" >
Superuser-3.0.7-efghi-signed.zip > Yes - Install Superuser-3.0.7-efghi-signed.zip
Once the install completes you can go back and "reboot system now"
Your phone should now be rooted.
Good luck.

Hi,
Currently I am on Android Version 4.0.3, with BB 70 and using Arconium MiUi Rom.
I want to get back to GB. I tried to flash the BB 64 and Adv Stock Kernel and TEAM HDPI Rom, but the internal space is showing as 0 and not able receive any sms.
Can i follow this method to get back to GB?
Rgds,
RxHy

rexhyd said:
Hi,
Currently I am on Android Version 4.0.3, with BB 70 and using Arconium MiUi Rom.
I want to get back to GB. I tried to flash the BB 64 and Adv Stock Kernel and TEAM HDPI Rom, but the internal space is showing as 0 and not able receive any sms.
Can i follow this method to get back to GB?
Rgds,
RxHy
Click to expand...
Click to collapse
Yes, with a few small changes I believe this should sort you out. As you are using Arconium MiUi I take it that you have unlocked bootloader.
I used this method on my own Xarc to downgrade to GB after testing out some of the first ICS roms in April, so I know this works.
The FTF file you need will be LT15i 4.0.2.A.0.62 Generic Global World which is the latest official GB 2.3.4 from Sony. (Note, this particular version can only be rooted on an unlocked bootloader.)
IMPORTANT: Never downgrade arc to a version of GB older than 2.3.4, because you will get the 0% battery problem which can not be repaired. The safe FTF files are LT15i 4.0.2.A.0.42 or LT15i 4.0.2.A.0.62 which are both GB 2.3.4 .
The main change is when it comes to the Superuser/root and CWM steps.
I would do it in this sequence:
1. Flash the GB FTF
2. Boot up the Gingerbread and copy the Superuser-3.0.7-efghi-signed.zip to the sdcard from Windows. (You can of course also put Superuser on the sdcard at the start if you wish. I just like to see that the unrooted firmware is working okay before I make any changes to the system files.)
3. Instead of flashing a kernel to the phone, I use Flashtool to "hotboot" a kernel with CWM recovery.
4. I use CWM of "hotboot" kernel to install the Superuser/root the phone.
In greater detail:
1. Get LT15i 4.0.2.A.0.62 Generic Global World from:
http://forum.xda-developers.com/showpost.php?p=18997655&postcount=1
Flashing this FTF is same steps as for the ICS in previous post.
2. This part is straightforward, just get the Superuser-3.0.7-efghi-signed.zip on to the sdcard.
3. From http://forum.xda-developers.com/showpost.php?p=18997655&postcount=1 scroll down to heading "[Tutorial]Root with recoveryLT15i". Download the file "Recovery.rar" from that section.
Extract the file recoveryARC.img from the RAR file.
Although the RAR also contains instructions for using commands to hotboot, I personally think the easiest way is to use Flashtool.
So we want to hotboot "recoveryARC.img" :
Start Flashtool.
With phone powered off, hold down Menu button and insert data cable.
Notification LED should turn blue.
Flashtool should now say: "Device connected in fastboot mode"
Click the button in Flashtool which looks like a lightning bolt (the button furthest to the left.) Tick "Fastboot mode" and click OK.
On left side "Select Kernel to Hotboot", find "recoveryARC.img" you just extracted and "Open" it.
Wait a minute while phone starts up. You do not need to press anything, it goes directly into Clockworkmod recovery.
Now you can proceed to root the phone from CWM.
4. The only difference is that in this version of CWM you must use power button to confirm your selections rather than Home button. Otherwise rooting GB from CWM is same steps as ICS in my previous post.
Disconnect data cable and reboot. Gingerbread should now be rooted.
Good luck!

Thanks a lot mate..It really worked. Now I am back on GB with Internal space problem solved.
Your detailed post really helped..Now I can go for any GB custom ROM..
Regards,
RxHy

duridian said:
Yes, with a few small changes I believe this should sort you out. As you are using Arconium MiUi I take it that you have unlocked bootloader.
I used this method on my own Xarc to downgrade to GB after testing out some of the first ICS roms in April, so I know this works.
The FTF file you need will be LT15i 4.0.2.A.0.62 Generic Global World which is the latest official GB 2.3.4 from Sony. (Note, this particular version can only be rooted on an unlocked bootloader.)
IMPORTANT: Never downgrade arc to a version of GB older than 2.3.4, because you will get the 0% battery problem which can not be repaired. The safe FTF files are LT15i 4.0.2.A.0.42 or LT15i 4.0.2.A.0.62 which are both GB 2.3.4 .
The main change is when it comes to the Superuser/root and CWM steps.
I would do it in this sequence:
1. Flash the GB FTF
2. Boot up the Gingerbread and copy the Superuser-3.0.7-efghi-signed.zip to the sdcard from Windows. (You can of course also put Superuser on the sdcard at the start if you wish. I just like to see that the unrooted firmware is working okay before I make any changes to the system files.)
3. Instead of flashing a kernel to the phone, I use Flashtool to "hotboot" a kernel with CWM recovery.
4. I use CWM of "hotboot" kernel to install the Superuser/root the phone.
In greater detail:
1. Get LT15i 4.0.2.A.0.62 Generic Global World from:
http://forum.xda-developers.com/showpost.php?p=18997655&postcount=1
Flashing this FTF is same steps as for the ICS in previous post.
2. This part is straightforward, just get the Superuser-3.0.7-efghi-signed.zip on to the sdcard.
3. From http://forum.xda-developers.com/showpost.php?p=18997655&postcount=1 scroll down to heading "[Tutorial]Root with recoveryLT15i". Download the file "Recovery.rar" from that section.
Extract the file recoveryARC.img from the RAR file.
Although the RAR also contains instructions for using commands to hotboot, I personally think the easiest way is to use Flashtool.
So we want to hotboot "recoveryARC.img" :
Start Flashtool.
With phone powered off, hold down Menu button and insert data cable.
Notification LED should turn blue.
Flashtool should now say: "Device connected in fastboot mode"
Click the button in Flashtool which looks like a lightning bolt (the button furthest to the left.) Tick "Fastboot mode" and click OK.
On left side "Select Kernel to Hotboot", find "recoveryARC.img" you just extracted and "Open" it.
Wait a minute while phone starts up. You do not need to press anything, it goes directly into Clockworkmod recovery.
Now you can proceed to root the phone from CWM.
4. The only difference is that in this version of CWM you must use power button to confirm your selections rather than Home button. Otherwise rooting GB from CWM is same steps as ICS in my previous post.
Disconnect data cable and reboot. Gingerbread should now be rooted.
Good luck!
Click to expand...
Click to collapse
A full Guide.
U helped . OP
Sent from my LT15i using Tapatalk 2

You are welcome. I've learned a lot of info from these forums in a short time, so I'm happy to pass along any info to others when I can.

Can anyone reupload Recovery.rar and Superuser-3.0.7-efghi-signed.zip since links do not work anymore?
Found it (in his ESP thread):
Superuser-3.0.7-efghi-signed.zip
LINK:http://www.2shared.com/complete/5jwUGSXh/Superuser-307-efghi-signed.html
Recovery.rar
LINK: http://ul.to/tz3hl0yu/Recovery.rar

See attachment for the recoveryArc.img, use fastboot boot recoveryARC.img to run it.

factory reset and roll back
Hi, i got an arc s recently and updated it to ICS. It lags a lot now and i wanna revert to GB. Can a factory reset get it back to GB or do i absolutely have to flash it in order to do so ?
Thanks.

thesmartest1 said:
Hi, i got an arc s recently and updated it to ICS. It lags a lot now and i wanna revert to GB. Can a factory reset get it back to GB or do i absolutely have to flash it in order to do so ?
Thanks.
Click to expand...
Click to collapse
A factory reset wont do the job!
http://talk.sonymobile.com/message/198483#198483 . A well-explained thread,and assuming you dont want/(haven't yet) to root your your phone(since u recently bought it),you can use this.Or else a better option would be rooting it and using a custom gb rom,since it gives you a much better experience.Use the search for rooting or other info.

Simple guide:
1.- Download flashtool. In the folder you install it you will find drivers folder. Run the program and install drivers for your device (if they aren''t installed yet)
2.- Download any 2.3.4 GB firmware, I would recommend you 4.0.2.A.0.62 firmware. 4.0.2.A.0.62 firmware for ARC S // 4.0.2.A.0.62 firmware for ARC. Introduce that firmware you downloaded in the folder firmwares (inside the flashtool directory)
3.- Turn down your phone. In flashtool, press the thunderbolt symbol, and press flashmode. Then, a list will appear. You must select the 4.0.A.0.62 fw you downloaded (and inserted in Flashtool/firmwares). When the PC is ready, will ask u to connect the phone in flashmode. Press back key and then connect the phone to the computer. A green light will appear in ur led. When finished, take the phone and reboot, you will have Gingerbread 2.3.4 in stead of ICS 4.0.4
Hope I helped u!

Sir, I am trying to flash my arc S for downrading to GB. I have the LT18i_62.ftf. Is this safe?
Also I am stuck in the "turn off your phone/hold back key" step....while holding the back key, says 'driver not installed even if i did already install drivers from driver-tools folder.
Thanks much.

da_nherd said:
Sir, I am trying to flash my arc S for downrading to GB. I have the LT18i_62.ftf. Is this safe?
Also I am stuck in the "turn off your phone/hold back key" step....while holding the back key, says 'driver not installed even if i did already install drivers from driver-tools folder.
Thanks much.
Click to expand...
Click to collapse
It does sound like a safe file.
Install the drivers from Flashtool folder 'drivers' (by default C:\Flashtool\drivers).

[Q] Possible Bricked R800i

I very recently asked for help installing CM7 onto my phone. While following a fairly simple tutorial linked to me by the author something hasn't worked and I've been left with a brick. I managed to fastboot the boot.img then when rebooting I was asked to "spam" the volume button repeatedly until it entered another mode. It did not do this. Instead it simply left me with a blank screen. No Sony Ericsson logo and no booting into another mode as the tutorial described. Someone in the thread had the same issue and basically the author just washed his hands of it and asked that guy to make a thread. I did look at the troubled users profile for said thread but for some reason this forum is saying the search is down, so hopefully someone can help me at least get my phone working. I'm done with the rooting/romming shenanigans. If there is a way to just get my phone up and running then hopefully someone can tell me. Until then it's just a brick.
Edit - Tried updating via SEUS but it says the phone has modified software and cant be updated. :-(
Would flashtool work?? I have no idea how to use it tho but am downloading it. Looking for things on here is hard work. lol.

Is your boot loader unlocked? You didn't mention if it was or not. If its not then that's why your bricked.

kelvenha55 said:
Is your boot loader unlocked? You didn't mention if it was or not. If its not then that's why your bricked.
Click to expand...
Click to collapse
Its unlocked. The tutorial before the one I mentioned above was about finding out if it was or not and it had a YES next to it in the menu. Along with my IMEI number etc, so I was told I was OK to go ahead with the other tutorial.

Flashtool Guide
Oh rght this should help you, okay. The answer to your question is yes flashtool should work, it sounds like you've got a botched install that's all if you doo this you should be fine
THIS WILL ERASE ALL DATA ON YOUR PHONE BUT NOT YOUR SD CARD
Here's a quick rundown of what you need to do, Download flashtool, download an ftf file, flash the ftf file to your phone through flashtool and then as if by magic your phone should work. So let's begin
Step 1) Turn your phone off - Then leave it to the side.
Step 2) Download and install Flashtool Get flashtool from here
After it has downloaded install it but make sure you have remembered the directory where you've installed it.
Step 3) Download an ftf file. This is a package that contains the stock software that came with your phone and flashing this will therefore return your phone to factory settings or stock.
Here is a thread with a list of ftf files, download the one that corresponds with your phone.
After you've downloaded it move it the folder named firmwares in your flashtool directory. For example mine is C:\Flashtool\firmwares
Step 4) Install the drivers. Navigate to the drivers folder in your flashtool directory, for example mine is C:\Flashtool\drivers From there open the file named Flashtool-drivers.exe and install ALL of the drivers.
Step 5) Flashing the FTF. Once you have installed all of the drivers open flashtool. From there click on the flash icon in the top left corner of the screen. Select Flashmode then click OK.
Select the FTF file you downloaded and moved to the firmwares folder and then click OK.
You will then see flashtool say it is preparing files for flashing follwed by a popup. The popup will promt you to power off your phone, hold the back button, then plug the USB into your Computer.
After you have done this flashtool will begin flashing your phone. Do not remove the USB until it is finished.
Once it has finished (The log will tell you when it has) remove the USB and power on your phone.
The initial boot may take some time as needs to rebuild it's cache. Don't panic this is normal. After it has your phone shoudl now have booted and be on the stock software that came with it
Hope I helped, if you need anymore help PM me

Thanks for the help but I was just too over that phone so I sent it away for cash (even fuc*ed it was worth £32) and I've got a brand new Xperia Arc S. Thanks.

[ROM][ARC/S]JELLY SANDWICH 4.5[09.09] Sonys logo problen

Well people, I have some problens on my Xperia Arc S GSM
The problem is the rom don't out Sony's logo
I found a Answer to me Question but I don't know how to fallow him
"locked bootlaoder ?
If so you need to flash an official ICS rom with flashtool, root it again, and reinstall x-parts.
Now you should be able to enter cwm.
Then do the full wipe and format system, and flash 4.4 Jelly sandwich.
Always remember that x-parts installs a recovery in the /system folder, not in the kernel (as it is on unlocked bootloaders), so if your rom is messed up, you can't access the recovery anymore and need to reinstall x-parts again, and for this to be done, you need to flash an official rom with flashtool first then root it."
How to Flash Official ICS on flashtool ?
Please, I live in a 3 world country called Brazil, when this phone cost about US$ 700 ! and the minium wage is US$ 350
And if my father discover that I in dead!
Please, I just want to bring my phone back to life
Please HELP ME!
Sorry for my poor English, Brazilian...
:crying::crying::crying:

Try
Use sony update service to repair the phone or flash a generic ROM.
For flashing ROM:
1. You need latest flashtool. Get from here http://androxyde.github.com/Flashtool/
2. ROM (in .ftf format) - Download the ROM that you need.(Search in xda forum)
The methods and procedures discussed here are considered risky and you should not attempt anything if you don’t know completely what it is. Do this only if you’re capable of getting your phone back right on your own. If any damage occurs to you or your device, we won’t be held liable. You only will be responsible — you’ve been warned. Okay!
This process will clear all user data and applications.(contacts, messages, call data, apps, apps data etc.,) . Please take backup of all your data before you start.
Instructions:
1. Switch off your phone and put it aside.
2. Extract the “FlashTool_x.x.x.x.exe” file on your PC (you can just double click on it to extract)
3. Few files and folders will be extracted — the two which we’ll be using are the ‘drivers‘ folder and the ‘firmwares‘ folder.
4. Inside the ‘drivers‘ folder there’s a file named “ggsetup-2.2.0.10.exe”, double click on this file to install the proper driver on your PC.
5. Now copy the “.ftf” firmware file that you downloaded for your phone, and paste it inside the “firmwares” folder.
6. Double click the “X10FlashTool.exe” file.
7. Once the program opens — click on the “Flash” button.
8. You’ll see the firmware that you copied in Step 5 loaded on the screen — click “Ok”!
9. Now it should ask you to connect your phone to the PC. So first plug the USB cable to PC, then pick up your phone and hold the “Back” key (key at the bottom left on
your Arc), and then connect the USB cable to your phone. Remember you’ve to hold the “Back” key while connecting the USB cable to phone.
10. Once the phone gets connected — Flashtool will automatically start the flashing process.
11. Keep an eye on the Flashtool’s screen.
12. And once the process gets finished, disconnect your phone from PC and switch it ON.
13. Don’t freak if it takes longer to boot (that’s normal) as the phone has to build the cache again after flashing.
Enjoy!!!
Hit "Thanks" if anyone helped you. :good:
Xperia Arc LT15i
Rooted/BootLoader Unlocked
Jelly Bean - FXP136/CM10

Thanks Guy!
Thank you for all the help, I restored my phone and now I'll try do unlock bootloader to have more security on my phone
I tried to get help in Brazilians forums but only here on XDA DEVELOPERS I got
Xperia Arc S LT18i
Rooted/BootLoader locked
Original rom

[TUT]How to Unbrick almost all Xperias

Disclaimer:
if you do not Follow instructions and FURTHER BRICK your device then it is not my fault YOU didn't follow instructions, in this case you are UNABLE to blame me.
Note:
Reason: im trying to make a tutorial for fixing your phone because i KNOW other people were where i was when i bricked my XS and its quite annoying knowing that i didn't know how to fix my phone, i looked around on the internet and found not much for Xperia s... so i decided to experiment
HARD BRICK (No response when plugged in)
There is a few different types of bricks but i am writing this to help you unbrick in a FEW ways
if your xperia device doesn't do anything when plugged in then try holding POWER + volume up it buzzes once , then a few seconds later 3 times in a row then your device is unbrickable
REQUIREMENTS
unlocked bootloader??? (maybe im not my XS came with a unlocked bootloader LET ME know if it works)
Flash-tool with a stock FTF
Fastboot Drivers and flash-mode drivers Installed properly (NOTE you should be able to find them in the Flashtool Folder (where the app is installed should be a Driver app should be calleld Flashtool Drivers.exe (just select your devices to install and click yes to any warnings... its safe)
Flashtool Downloaded from here
http://androxyde.github.io/
Download from here FTF from here (find YOUR Device And download the CORRECT FTF for your device)
http://www.xdafileserver.nl/index.php?dir=Sony+(Ericsson)
follow this
01- Hold POWER+VOLUME UP till it buzzes 3 times. (after the one buzz)
02- open flash tool
03- Click on the little lightning shock button at the top left and click on flash-mode then ok
04- select your DEVICE (example Xperia S FTF should be called lt26I and acro s is lt28I)
05- Follow Flash-tool Instructions after FTF is done preparing (note back buton = Volume Down for newer xperias)
06- Once done Flashing BOOT, it
SOFT BRICK (Boots but shuts off when during boots and starts again (boot loop)
for CWM users (only work if you have a backup)
01- Do a system restore is backup is present
or
01- make a backup
02-flash a ROM
03- copy a zip flashable stock ROM, flash and do a data restore
OR
01- Flash your Stock ROM FTF (using flashtool)
02- EXCLUDE ALL but your system
if that doesn't work
03- Dont exclude anything when flashing
OR
01- open sony companion
02- go to support zone
03- click on REPAIR DEVICE
04- Follow instructions
Sorry for Spelling mistakes , i dont speak english as a primary language

Hi,
We Already have a brilliant thread by ToledoJab regarding Bricking Recovery, in the General Section.
http://forum.xda-developers.com/showthread.php?t=1849170
Have you checked that before posting a new thread on this topic??

Honestly i found other kind of brick it will make your phone stuck and even you press power + vol up it will do nothing all i can do is let the battery die (Ion can't remove battery) then i can charge and flash new rom and recover it

OP, I will ask you to search before creating a new thread, I understand you waiting to provide to the Community, but there is thread establish Here. Thank You

[Q] How can i unroot my Sony Xperia SL?

So i bought a sony xperia SL on ebay in used condition and i tried to update my phone but an error message appeared saying the device had been modified and cannot update...so i figured the phone was rooted....so now i want to unroot...can someone please help??

dannyeagle25 said:
So i bought a sony xperia SL on ebay in used condition and i tried to update my phone but an error message appeared saying the device had been modified and cannot update...so i figured the phone was rooted....so now i want to unroot...can someone please help??
Click to expand...
Click to collapse
If it is just only rooting, you can update your phone just fine. You will encounter the error if your bootloader had been unlocked. You can check your bootloader status by typing in dialer *#*#7378423#*#* a window should be prompt out. Go for software info>configuration. Look at the last one, if is saying bootloader unlock allowed: yes, then your phone bootloader is locked. If it is showing bootloader unlocked: yes, then your phone bootloader is unlocked. You can use flashtool to flash back original ftf to unroot. If you wan to relock bootloader, there is a thread in this forum. You can search for it

chrissiong said:
If it is just only rooting, you can update your phone just fine. You will encounter the error if your bootloader had been unlocked. You can check your bootloader status by typing in dialer *#*#7378423#*#* a window should be prompt out. Go for software info>configuration. Look at the last one, if is saying bootloader unlock allowed: yes, then your phone bootloader is locked. If it is showing bootloader unlocked: yes, then your phone bootloader is unlocked. You can use flashtool to flash back original ftf to unroot. If you wan to relock bootloader, there is a thread in this forum. You can search for it
Click to expand...
Click to collapse
ok so i did what you said and it says "Bootloader unlocked: Yes" now i am completely new to all of this so i have no idea what im doing im just following steps..all i want to do is to update my phone to the latest version.. in order to achieve that all i need to do is use the flashtool on my pc? i have windows 8.1 will that affect any of the process? and how do i use the flashtool btw...im sorry im being such a pain in the a** .

dannyeagle25 said:
ok so i did what you said and it says "Bootloader unlocked: Yes" now i am completely new to all of this so i have no idea what im doing im just following steps..all i want to do is to update my phone to the latest version.. in order to achieve that all i need to do is use the flashtool on my pc? i have windows 8.1 will that affect any of the process? and how do i use the flashtool btw...im sorry im being such a pain in the a** .
Click to expand...
Click to collapse
For windows 8.1, you will need to use another method to install the necessary drivers for your computer to detect the devices in flashmode and fastboot mode. I dont know it is working or not because i dont own windows 8.1 computer
First of all, the files you will need to proceed next step
1. flashtool. you can download it in offical website http://www.flashtool.net/download.php
2. original ftf file of xperia sl (credits to ska67) http://forum.xda-developers.com/showthread.php?t=2423025 Just download all parts and extract it together to get the whole ftf file
3. usb cable
If you prepared those files, lets get started
1. install the flashtool(this is necessary because we need it flash the ftf)
2. copy the ftf file to firmwares folder (flashtool>firmwares)
3. for the drivers, the setup.exe is located in flashtool folder (flashtool>drivers>setup.exe). AFAIK, you cannot install the drivers directly in windows 8.1, you will encounter error messages while installing
To successfully run the drivers installation, you need to follow these steps
1. Update your windows 8.1, the files can be download in this website http://support.microsoft.com/kb/2917929, if you are on windows 8, just skip to step 2
2. Once you are done, follow this tutorial(credits to neroyoung) http://forum.xda-developers.com/showthread.php?t=2095087
3. If you follow the steps correctly, now you should be able to install the drivers without getting error
4. Install the drivers(i already told you the file location at above)
5. Remember when you start the installation, check the box of the flashmode and fastboot drivers and install
6. Once the installation done, restart your computer
7. After this, now your computer should be ready for the flashtool to work
Now, this part is for the ftf installation
1. Power off your phone (just leave it beside, we need it afterwards)
2. Run the flashtool
3. Click the thunder icon (choose flashmode and click OK)
4. A window will prompt out, click the firmware of your device, i assume that you have placed the ftf file inside the firmware folder(it should be named as LT26ii xperia SL, the version will be 6.2.B.1.96)
5. For the options beside it, just leave it there (for the misc section, check the box named with no final verification)
6. Now, you can click the flash button(you need to wait for awhile before a window prompt out
7. A window should be prompt out telling you to connect your device to the computer.
8. Take your phone, press and hold the volume down key
9. Keep it pressed, connect the usb cable to your pc
10. release the key once GREEN LED lights up
11. Now the flashtool will start flashing, let it finish to 100%
12. In the meantime, DO NOT UNPLUG OR PLAY WITH YOUR PHONE BEFORE IT REACHES 100%, YOU WILL RISK BRICKING YOUR PHONE IF THE INSTALLATION WENT FAILURE
13. Once it reaches 100%, it should tell you to disconnect your phone and power on
14. the first boot will take a few minutes so patiently wait for it
15. once its done, have fun with your phone
PS: Follow the steps and be careful, I am not responsible if you brick your phone, burn your house or blow your PC by following this guide.
As i just say from the start, i do not own a windows 8.1 computer and i cannot confirm this tutorial is working or not

chrissiong said:
For windows 8.1, you will need to use another method to install the necessary drivers for your computer to detect the devices in flashmode and fastboot mode. I dont know it is working or not because i dont own windows 8.1 computer
First of all, the files you will need to proceed next step
1. flashtool. you can download it in offical website http://www.flashtool.net/download.php
2. original ftf file of xperia sl (credits to ska67) http://forum.xda-developers.com/showthread.php?t=2423025 Just download all parts and extract it together to get the whole ftf file
3. usb cable
If you prepared those files, lets get started
1. install the flashtool(this is necessary because we need it flash the ftf)
2. copy the ftf file to firmwares folder (flashtool>firmwares)
3. for the drivers, the setup.exe is located in flashtool folder (flashtool>drivers>setup.exe). AFAIK, you cannot install the drivers directly in windows 8.1, you will encounter error messages while installing
To successfully run the drivers installation, you need to follow these steps
1. Update your windows 8.1, the files can be download in this website http://support.microsoft.com/kb/2917929
2. Once you are done, follow this tutorial(credits to neroyoung) http://forum.xda-developers.com/showthread.php?t=2095087
3. If you follow the steps correctly, now you should be able to install the drivers without getting error
4. Install the drivers(i already told you the file location at above)
5. Remember when you start the installation, check the box of the flashmode and fastboot drivers and install
6. Once the installation done, restart your computer
7. After this, now your computer should be ready for the flashtool to work
Now, this part is for the ftf installation
1. Power off your phone (just leave it beside, we need it afterwards)
2. Run the flashtool
3. Click the thunder icon (choose flashmode and click OK)
4. A window will prompt out, click the firmware of your device, i assume that you have placed the ftf file inside the firmware folder(it should be named as LT26ii xperia SL, the version will be 6.2.B.1.96)
5. For the options beside it, just leave it there (for the misc section, check the box named with no final verification)
6. Now, you can click the flash button(you need to wait for awhile before a window prompt out
7. A window should be prompt out telling you to connect your device to the computer.
8. Take your phone, press and hold the volume down key
9. Keep it pressed, connect the usb cable to your pc
10. release the key once GREEN LED lights up
11. Now the flashtool will start flashing, let it finish to 100%
12. In the meantime, DO NOT UNPLUG OR PLAY WITH YOUR PHONE BEFORE IT REACHES 100%, YOU WILL RISK BRICKING YOUR PHONE IF THE INSTALLATION WENT FAILURE
13. Once it reaches 100%, it should tell you to disconnect your phone and power on
14. the first boot will take a few minutes so patiently wait for it
15. once its done, have fun with your phone
PS: Follow the steps and be careful, I am not responsible if you brick your phone, burn your house or blow your PC by following this guide.
As i just say from the start, i do not own a windows 8.1 computer and i cannot confirm this tutorial is working or not
Click to expand...
Click to collapse
WOOOOOOOOOOW GREAT WORK MY FRIEND!!!!!!
it worked perfectly! i have no experience at all in extracting files and following stuff like this...this worked 100% no errors no nothing! my Xperia SL LT26ii is now updated and running faster than ever before!
i am extremely grateful for your help man seriously.. but i can honestly say i was 100% confident following your steps as soon as i realized you knew i needed to update my PC before it even told me. hahaha!
great work. thanks a lot :good: the steps you provided work 100% i approve this!
also i learned a lot from following your steps! again thanks!

dannyeagle25 said:
WOOOOOOOOOOW GREAT WORK MY FRIEND!!!!!!
it worked perfectly! i have no experience at all in extracting files and following stuff like this...this worked 100% no errors no nothing! my Xperia SL LT26ii is now updated and running faster than ever before!
i am extremely grateful for your help man seriously.. but i can honestly say i was 100% confident following your steps as soon as i realized you knew i needed to update my PC before it even told me. hahaha!
great work. thanks a lot :good: the steps you provided work 100% i approve this!
also i learned a lot from following your steps! again thanks!
Click to expand...
Click to collapse
Welcome i am glad that you could successfully update your phone

WOOOOOOOOOOW GREAT WORK MY FRIEND!!!!!!
it worked perfectly! i have no experience at all in extracting files and following stuff like this...this worked 100% no errors no nothing! my Xperia SL LT26ii is now updated and running faster than ever before!
i am extremely grateful for your help man seriously.. great work. thanks a lot the steps you provided work 100% i approve this!

kapilrtn said:
WOOOOOOOOOOW GREAT WORK MY FRIEND!!!!!!
it worked perfectly! i have no experience at all in extracting files and following stuff like this...this worked 100% no errors no nothing! my Xperia SL LT26ii is now updated and running faster than ever before!
i am extremely grateful for your help man seriously.. great work. thanks a lot the steps you provided work 100% i approve this!
Click to expand...
Click to collapse
sorry to disturb, but I am new here and I have little knowledge about technology(android). Can you help me about how you extract the file (three parts) and make them into 1 file FTF? I am having trouble with my xperia SL too, I am stuck with old version 4.0.4. I have tried 2 firemware already but they did not work. Thank in advance!

Rosely said:
sorry to disturb, but I am new here and I have little knowledge about technology(android). Can you help me about how you extract the file (three parts) and make them into 1 file FTF? I am having trouble with my xperia SL too, I am stuck with old version 4.0.4. I have tried 2 firemware already but they did not work. Thank in advance!
Click to expand...
Click to collapse
Use Winrar software for extracting the files. You can find it online easily.

My experience
Friend, I tell you what I did: re-flash the ROM that I have. ROOT automatically disappears.
If you need more help not dude to send me a private messaje.
Sorry if I have any mistake, i´m from Argentina
Cheers!!