Post Reply
Phone

Guide [for beginners] - How To Unlock Bootloader via Flashtool

3rd November 2012, 03:07 PM   |  #1  
sid.8491's Avatar
OP Senior Member
Thanks Meter: 102
 
342 posts
Join Date:Joined: May 2012
More
I am assuming your phone can be bootloader unlocked and you have unlocking key from sony.
If you don't know then refer to this post http://forum.xda-developers.com/show....php?t=1527159

WARNING: IT WILL WIPE YOUR PHONE DATA SO MAKE BACKUP

1. Install Flashboot and Fastboot drivers of Flashtool (setup file will be on C:\Flashtool\drivers or similar place).
2. Turn on your phone, and connect with usb debugging on.
3. Go to Plugins-> Bootloader Unlock option, start it.
4. Now it will ask to disconnect your phone and reboot in FLASHMODE.
5. Again reboot your phone in FASTBOOT mode.
6. It will show a window with your IMEI number, insert your unlock key and click "unlock".
7. The device will reboot and you are done!

FLASHMODE
You can get into flashmode by pressing specific hardware key and connecting phone to pc via USB.
It will glow GREEN LIGHT on led if done correctly.

Hardware key-
Back Button (X8, X10, X10 mini, X10 mini pro, Play, Arc, Arc S, Neo, Neo V, Pro)
Volume Down Button (Xperia U,P,S,Sola)

FASTBOOT Mode
You get into fastboot mode by turning off your phone, then pressing the fastboot mode key button, and connecting the USB to your phone. Done correctly and you should see a BLUE LIGHT on the power button.

Hardware key-
Menu Botton (Xperia Arc, Arc S, Neo, Neo V, Pro)
Volume Up Botton (Xperia U,P,S,Sola)
Attached Thumbnails
Click image for larger version

Name:	Drivers.PNG
Views:	7762
Size:	36.9 KB
ID:	1453411   Click image for larger version

Name:	Unlock.jpg
Views:	3947
Size:	9.7 KB
ID:	1453412  
Last edited by sid.8491; 3rd November 2012 at 03:14 PM.
The Following 24 Users Say Thank You to sid.8491 For This Useful Post: [ View ]
3rd November 2012, 04:52 PM   |  #2  
Karim Kahale's Avatar
Senior Member
Flag Beirut
Thanks Meter: 293
 
506 posts
Join Date:Joined: Jun 2012
More
Should the phone be turned off in flashmode??
The Following User Says Thank You to Karim Kahale For This Useful Post: [ View ]
3rd November 2012, 05:15 PM   |  #3  
sid.8491's Avatar
OP Senior Member
Thanks Meter: 102
 
342 posts
Join Date:Joined: May 2012
More
Quote:
Originally Posted by karimkahale

Should the phone be turned off in flashmode??

yes, turn off your phone then connect USB while pressing specific key.
same applies for fastboot method
The Following User Says Thank You to sid.8491 For This Useful Post: [ View ]
4th November 2012, 02:36 AM   |  #4  
Karim Kahale's Avatar
Senior Member
Flag Beirut
Thanks Meter: 293
 
506 posts
Join Date:Joined: Jun 2012
More
When I am installing drivers, I am getting "don't install or install anyway", I choose install anyway but the same window comes up again. Should my phone be turned on, off or in flashmode or something?
The Following User Says Thank You to Karim Kahale For This Useful Post: [ View ]
4th November 2012, 04:11 AM   |  #5  
sid.8491's Avatar
OP Senior Member
Thanks Meter: 102
 
342 posts
Join Date:Joined: May 2012
More
Quote:
Originally Posted by karimkahale

When I am installing drivers, I am getting "don't install or install anyway", I choose install anyway but the same window comes up again. Should my phone be turned on, off or in flashmode or something?

it asked me 3-4 times and i chose "install anyway", and phone doesn't need to be connected while installing drivers.
The Following User Says Thank You to sid.8491 For This Useful Post: [ View ]
4th November 2012, 12:45 PM   |  #6  
Karim Kahale's Avatar
Senior Member
Flag Beirut
Thanks Meter: 293
 
506 posts
Join Date:Joined: Jun 2012
More
I got an error in last step : Failed (remote: oem unlock failed ). This happened to me too when i used the official way to unlock my sony xperia p. Can someone help?
4th November 2012, 03:54 PM   |  #7  
sid.8491's Avatar
OP Senior Member
Thanks Meter: 102
 
342 posts
Join Date:Joined: May 2012
More
Quote:
Originally Posted by karimkahale

I got an error in last step : Failed (remote: oem unlock failed ). This happened to me too when i used the official way to unlock my sony xperia p. Can someone help?

did u check that your device can be unlocked or not?
4th November 2012, 05:09 PM   |  #8  
Karim Kahale's Avatar
Senior Member
Flag Beirut
Thanks Meter: 293
 
506 posts
Join Date:Joined: Jun 2012
More
Yes I checked, it can be unlocked
4th November 2012, 09:06 PM   |  #9  
Member
Thanks Meter: 4
 
45 posts
Join Date:Joined: Oct 2012
If you have installed Flashtools and its drivers correct you shouldn't get any driver prompts when plugging the phone in

Assuming you did a default install browse to C:\Flashtool\drivers and execute the drivers file. Make sure you select the drivers for you phone ie "Xperia U" and scroll to the bottom of the list and select Flashboot and Fastboot drivers. From what I have seen so far most people are not installing these 3 drivers.

karimkahale: I would go back to the Sony website and get your unlock code again. Maybe you entered some wrong details...
10th December 2012, 07:13 AM   |  #10  
Utkarsh-ezzo's Avatar
Senior Member
Flag Nagpur/Mumbai
Thanks Meter: 474
 
754 posts
Join Date:Joined: Sep 2012
More
Unhappy
Please help me out,
when I am trying to install fastboot drivers from flashtools drivers folder, I am getting an error saying driver installation failed.
My os is windows 8 pro 64bit..My phone Xperia U (ICS)
What should I do.

Post Reply Subscribe to Thread

Tags
bootloader unlock, flashtool, unlocking
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes