[Arc/S] [PRO] Root for 4.0.4 ICS Update [4.1.B.0.431+4.1.B.0.587]

Droid Ghost · Aug 30, 2012

b_nikz said:
Perfect...so now just follow the steps below (DO NOT CONNECT THE PHONE TO THE COMPUTER YET)

1. download the the lt18i_4.1.B.0.431_kernel_down_upgrade file if you haven't already from http://www.mediafire.com/?twn09p8ekug46f7
(It is the LT18i kernel but you can use it)

2. extract the file, you will have two files called 1_lt18i_4.1.B.0.431_kernelDowngrade.ftf and 2_lt18i_4.1.B.0.431_kernelUpgrade

3. open flashtool (do not click on the flash mode)

4. drag and drop the 1_lt18i_4.1.B.0.431_kernelDowngrade.ftf into flashtools main window and the flash mode window will automatically open with the ftf

5. check the No Final Verification box and click on OK

6. Flashtool will ask you to turn off your device, hold the back button and connect the phone so do that anc click OK

7. it will start flashing the downgrade kernel..Once it is done disconnect the phone from the computer and CLOSE FLASHTOOL (Closing flashtool is very important)

8. Start your phone, check USB debugging and Unknown sources and root using DoomLord's Tool like you did before.....
http://xdaforums.com/showthread.php?t=1601038

9. After you have finished rooting disconnect the phone...close the command prompt and turn off your phone.

10. You said you already have the lt15i_4.1.B.0.587_kernel_only .ftf.... if not download it from http://minus.com/l2nHaaZknNLkx

11. Open flashtool, drag and drop the lt15i_4.1.B.0.587_kernel_only.ftf into flashtools main window.

12. repeat the process from step 5, 6 and 7.

13. Thats it...you are on a rooted 4.1.B.0.587

b_nikz thank you for those brilliant instructions, the best I've seen yet, no grey areas. I'll try that later today. :good:

b_nikz · Aug 30, 2012

Droid Ghost said:
b_nikz thank you for those brilliant instructions, the best I've seen yet, no grey areas. I'll try that later today. :good:

Cool beans...just pm or post here if u have any issues....

androaft · Aug 30, 2012

BIG Problem in Rooting

I tried to root my Sony Ericsson Xperia pro (MK16i) using above method.(bootlocker unlocked)
1. Downloaded ready to root mk16i ftf file
2. Connected My Mobile in flash mode
3. Using flashTool I flashed the ftf file on mobile
Now phone is not restarted for 15 mins, So I tried to restart manually But whoaa It is not restarting neither connecting in flash mode to PC
What may be the solution??
Please help soon!

sblob · Aug 30, 2012

Done! You guys who do this stuff rock my world! Thanks so much!!!!!

sadique_shiblee · Aug 30, 2012

Have you tried removing the battery?
Does your display light lit up. Or does it shows boot image?

If you dont, try it. Try to reflash the kernel again from fastboot mode. Hope that will solve the issue...

Sent from my Pro using xda app-developers app

---------- Post added at 05:08 PM ---------- Previous post was at 04:57 PM ----------

androaft said:
I tried to root my Sony Ericsson Xperia pro (MK16i) using above method.(bootlocker unlocked)
1. Downloaded ready to root mk16i ftf file
2. Connected My Mobile in flash mode
3. Using flashTool I flashed the ftf file on mobile
Now phone is not restarted for 15 mins, So I tried to restart manually But whoaa It is not restarting neither connecting in flash mode to PC
What may be the solution??
Please help soon!

remove your batery
wait for few seconds
if possible get an img format kernel like- boot.img
press and hold menu button, switch on the phone through power button
flash tool will say your mobile is connected in fastboot mode
from fast boot mode reflash the kernel.img file [if possible go for stock kernel]
install a stock rom

think that will help you...

Here is the Stock ICS .587 kernel for Xperia Pro with CWM and Root..

Download Link - http://minus.com/luzbuqsNMkIZd [thanks to heinrichkaiser]

Droid Ghost · Aug 30, 2012

b_nikz one problem I encountered before I even got going, when I tried to drag and drop the downgrade file to the flashtool window, it wouldn't let me. I tried cutting and pasting and that didn't work either. I can drag and drop anywhere else on my PC.

b_nikz · Aug 30, 2012

Droid Ghost said:
b_nikz one problem I encountered before I even got going, when I tried to drag and drop the downgrade file to the flashtool window, it wouldn't let me. I tried cutting and pasting and that didn't work either. I can drag and drop anywhere else on my PC.

if thats the case you are not dragging it in the main window where the log is mentioned...where it specifically says You can drag and drop ftf files here to start flashing them.....

If it still doesn't work then go to C:/Flashtool/firmwares and paste the ftf files there. That way you will get the option for flashing the respective ftf's once you click on Flash mode.

Droid Ghost · Aug 30, 2012

b_nikz said:
if thats the case you are not dragging it in the main window where the log is mentioned...where it specifically says You can drag and drop ftf files here to start flashing them.....

If it still doesn't work then go to C:/Flashtool/firmwares and paste the ftf files there. That way you will get the option for flashing the respective ftf's once you click on Flash mode.

Hi b_nikz,

I was dragging into the main window, but it just wouldn't go. I tried everywhere in the window (may be something to do with permissions). Anyway, I inserted the file into the firmware folder, opened the flashtool, chose the flash mode and found the file in the window that I inserted into the firmware folder and continued from there. My phone is now rooted. Thanks once again.

Please note that in the video that shows how to root the phone, it tells you to open up a command prompt, but you don't need to do that. You just find the ADB.exe file in the 'files' folder, run it, then click on 'Run.bat'. That works fine.

Sinnlosvoll · Aug 30, 2012

Hey, i have followed the steps and now i have a rooted arc s with the .431 build.
but i just can't seem to flash the .587 kernel onto it.
flashtool says flashing done. phone will reboot but it dosn't reboot.
do you know where my problem could be?

Droid Ghost · Aug 30, 2012

Sinnlosvoll said:
Hey, i have followed the steps and now i have a rooted arc s with the .431 build.
but i just can't seem to flash the .587 kernel onto it.
flashtool says flashing done. phone will reboot but it dosn't reboot.
do you know where my problem could be?

Try closing the flashtool, disconnecting phone, and reboot the phone manually.

Sinnlosvoll · Aug 30, 2012

Droid Ghost said:
Try closing the flashtool, disconnecting phone, and reboot the phone manually.

i tried that, but it still says that is has the .431 build on it

Droid Ghost · Aug 30, 2012

Sinnlosvoll said:
i tried that, but it still says that is has the .431 build on it

Try going through the whole process again, this once happened to me. Ensure you double check each instruction carefully, it's easy to miss something. Ensure you have 'Unknown sources' ticked and 'USB debugging' ticked.

Sinnlosvoll · Aug 30, 2012

Droid Ghost said:
Try going through the whole process again, this once happened to me. Ensure you double check each instruction carefully, it's easy to miss something. Ensure you have 'Unknown sources' ticked and 'USB debugging' ticked.

is it normal that the phone stays rooted after flashing the .431 build onto it?

GoldenRazz · Aug 31, 2012

Does Post 3 works with locked bootloader?

I have 4.1.B.0.587 and want to flash the kernel then root it and then flash back the 4.1.B.0.587 Kernel.

Is it possible?

b_nikz · Aug 31, 2012

Sinnlosvoll said:
Hey, i have followed the steps and now i have a rooted arc s with the .431 build.
but i just can't seem to flash the .587 kernel onto it.
flashtool says flashing done. phone will reboot but it dosn't reboot.
do you know where my problem could be?

hey mate!!! the reason for that is because you haven't actually upgraded the basic firmware yet!! what you would need to do if you dont have the option to upgrade OTA is to upgrade via PCC to a non-rooted .587, downgrade the kernel, root the phone with DoomLord's tool and upgrade the kernel again. after you upgrade the basic firmware to .587 you can follow the steps in my post #680 on page 68. You cant just flash a .587 kernel on a basic .431 firmware. it won't work that way...

P.S if you can't upgrade via PCC due to any reason just use this link to download the firmware for the stock .587
http://dl.dropbox.com/u/63537096/LT18i_4.1.B.0.587_Sony.rar

jithuelad · Aug 31, 2012

for 4.1.B.0.587, in the first step you are telling to flash with a kernel and pointed to a mediafire link. But that zip file contains two ttf files inside that.
So which one is correct ?

Files are :
1_lt18i_4.1.B.0.431_kernelDowngrade.ftf
2_lt18i_4.1.B.0.431_kernelUpgrade.ftf

Osama Zabin · Aug 31, 2012

jithuelad said:
for 4.1.B.0.587, in the first step you are telling to flash with a kernel and pointed to a mediafire link. But that zip file contains two ttf files inside that.
So which one is correct ?

Files are :
1_lt18i_4.1.B.0.431_kernelDowngrade.ftf
2_lt18i_4.1.B.0.431_kernelUpgrade.ftf

I used the kernel downgrade ftf file and my phone was successfully rooted, I didn't use the other ftf kernel upgrade,

Sent from my LT15i using xda premium

shahulhrj · Sep 1, 2012

Thanks, Kindly advice what to do next

Thanks for the thread.. i have succesfully rooted my phone.. I am a total Noob.. Please kindly tell me what to do next after rooting.. i want arc s to be really fast.. what shud i do? how to remove the bloatwares, how to install a faster rom, kindly guide me..

Some one please tell me a specfic setup for a faster phone.. please

wzearsdcx · Sep 1, 2012

I got root on .587 (kernel downgrade -> doomlord -> kernel upgrade) and... I have question

Is it normal, that getting root is so slow? e.g. terminal emulator - I type 'su' and wait wait wait.. and get root access few seconds. Root Explorer from time to time loses root rights (Superuser app shows thats ok). Any advices?

ashikonxda · Sep 2, 2012

FOR XPERIA PRO USERS WITH Build Number 4.1.B.0.587

Xperia Pro users
Follow this and you'l be done..
Dont forget to Hit Thanks..

[Arc/S] [PRO] Root for 4.0.4 ICS Update [4.1.B.0.431+4.1.B.0.587]

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