[XGO] Tutorial on reinstall official ics with sus

Hello to all of you,

This is a tutorial on how to REINSTALL on official ICS rom.
If you have problems with flashing other
kernels and roms and you don't
have make a full backup to restore as I did ....

I had my st27i unlocked bootloader and
flashed with rooted rom .
And now it's new again to restart testing roms ...

This is about unlock bootloaders
and how to relock them
so you can make your phone new again
and restart flashing new roms .

Or if you must go to service and you
want your guarantee back ....

I'm not responsible for any damages.

At first you need to install flashtool
and manualy the drivers that you will find inside
the flashtool drivers folder.
http://androxyde.github.com/

Then you must download
st27i_6.0.B.3.184_Original.ftf
thanks to DJ_Mike_Jams
http://xdaforums.com/showthread.php?t=1933192

And

ST27i_XPERIA.cz_relock_bootloader.ftf
thanks to Jozinek
http://xdaforums.com/showthread.php?t=1799005

And put these ftf files into
C:\Flashtool\firmwares

Now follow the steps :

1. Open flashtool
2. Connect your phone on flashboot mode
(pess volume+ and plug usb)
3. Wait until your phone connect with flashtool
4. Press flash button and select flashmode
5. choose the st27i_6.0.B.3.184_Original.ftf file
and start
6. You will see a message
7. You must unplug your phone and replug by
pressing volume- key
8. when flashing done reboot your phone
9. Then do again steps 1,2,3,4,and
10.Choose ST27i_XPERIA.cz_relock_bootloader.ftf file
and start flashing
11.Do again steps 6,7
12.When flashing done reboot your phone
13.Connect your phone to SUS (sony update service)
and take the update to
ICS Official firmware.
14. ENJOY !!!!!!!!!!!!!!!!


I'M NOT A DEVELOPER
I HAD FLASHED boot image + CWM Touch recovery v5.5.0.4
AND stock ICS rom (recovery compatible zip)
BY munjeni . GREAT THANKS TO HIM TOO . RESPECT .
http://xdaforums.com/showthread.php?t=1912865


THESE ARE THE STEPS WHICH I FOLLOWED
TO ERASE EVERYTHING
INCLUDE CUSTOM KERNEL , CWM .
AND INSTALL EVERYTHING FROM SCRATCH AGAIN .

IF I HELP SOMEBODY JUST PRESS THANKS BUTTON .
SORRY FOR MY BAD ENGLISH.

refly said:

is that gb rom??
ICS is following number 6.1.1.B.1.10

Sent from my ST27i using xda premium

Click to expand...

Click to collapse

Yes this is GB , you will take ICS on
step 13 , from SUS .

chuchao said:

13.Connect your phone to SUS (sony update service)
and take the update to

online update to ICS

Click to expand...

Click to collapse

Yes, online ypdate to official ICS
and your phone will become new again.
Everything from scratch .

nosmaster said:

what you should have mentioned in the op that at the moment there is no way to relock xperia go on ics so you have to downgrade first to gb so that you can relock yout bootloader( during the ics update the bootloader got changed so someone needs to make ics bootloader locker ftf) .

Click to expand...

Click to collapse

yes, as I know there is no ics boodloader locker until now .
and these are the steps that I followed .
So if anyone need to use the warranty I think this
is the way to relock the boodloader
and fix the phone new again .
I hope someone make an ics
bootloader locker , and skip all this procedure.

Harold_jayson said:

hi i'm new in android,

i have a Sony xperia go st27i(black) with unlock bootloader, and has a untouch and stock rom with build number 6.0.B.3.184

and i would like to relock its bootloader, will i still need to flash the st27i_6.0.B.3.184_Original.ftf file?

or should i skip to step 9 already and flash ST27i_XPERIA.cz_relock_bootloader.ftf?

help please....

Click to expand...

Click to collapse

I'm not really sure , but I think that you can skip to step 9 .
If you read the thread where the ST27i_XPERIA.cz_relock_bootloader.ftf , is ,
you will see that you must NOT have custom kernel in your phone ,
so if you have untouch and stock rom ,
then this ftf file must work for you .........

trattkantarell said:

Is it the same procedure if I want to unroot, does my warranty break if I root it?

Sent from my LT22i using xda app-developers app

Click to expand...

Click to collapse

Please read these instructions :
http://unlockbootloader.sonymobile.com/
AND
You can read this :
http://talk.sonymobile.com/thread/41119
I Think that Nabeel , which is a moderator in
that forum , explain all that you want to know .

And at last , you have the way to make your phone new again
if you need the warranty , in this thread .