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Tutorial Root Sony Ericsson Xperia Arc / Arc S ICS 4.0.4 - Lock Bootloader

By Unknown on Sunday, October 7, 2012 0 comments

After customized and explore with my Xperia Arc S, this time I tried to share my experience Rooting Sony Ericsson Xperia Arc S With Lock Bootloader. So this process without unlock your bootloader to have root acces. The Root process is I've done in the ICS 4.0.4 OS conditions. The Steps are very simple, even if viewed as a step by step overall just three (3) steps.
Okay to not take a long time again, just go follow the step by step way of rooting xperia arc s below.

Read First

[[IMPORTANT]] We always get used to doing Nandroid Backup, just in case if something goes wrong or bootloop in our Smartphone. Especially when going to install Custom ROMs, Porting the application, or flash the kernel.


  • Handheld (HH) Xperia Arc S
  • Flashtool (download let )
  • ADB Driver (can be downloaded at let FlashTool-Drivers )
  • Firmware or ROM Xperia Arc / Arc S ICS 4.0.4 ready in ROOT (download here )
  • Kernel ICS 4.0.3 and 4.0.4 
  • DooMLoRD_v1_Xperia-2011-ICS-ROOT
  • CWM Recovery (search in google play> keyword Xperia CWM Recovery)
  • After all the war equipment available, time to go.


To download all the files go here root xperia arc s (pass:

After you prepare the requirements, now we can start the root process

How to root Xperia Arc S

  1. Run Flashtool that you have downloaded. Plug in your device with USB Cable to PC. Flashtool will automatically detect your Xperia S.
    Before doing flashing the firmware make sure your device condition is in the USB Debugger and stay awake is checked, Sleep setting at least 10min, Unknown Sources also checked. Connectivity USB MSC mode. look the screenshot belowflashtool for xperia s
  2. The next step is flashing ICS 4.0.4 ROM ready to root. Extract the ftf files from the zip file that you have downloaded before . Enter the .tft file extension into the firmware folder in flashtool folder. (Example: C: \ Flashtool \ firmware). Click the flash in flashtool application. see image below
    flash ics 4.0.4 to xperia s
  3. Then it will pop up as shown below, select flashmode
  4. The next display will be shown like picture below. Select the firmware of the ftf files that have been extracted, the firmware Xperia Arc / Arc S ICS 4.0.4 ready to root. Click OK, wait flashtool will detect your device. (Note: if asked adb driver, you can install in a folder (C: \ Flashtool \ drivers)).
    Select the Firmware as in the picture.
    firmware ics on xperia s
  5. Wait for the process runs until the display appears as shown to root xperia s
  6. Before performing the next step, make sure some usb debugger option unchecked and unknown resource or active.
  7. Since I use ICS 4.0.4, to the root of this method must first downgrade to 4.0.3 ICS kernel. Kernel can be downloaded on the requirements above.
  8. Once downloaded do flashing in the same way as when flashing the firmware before.
    Only after downgrade kernel, we do rooting. For the root process I use tool DooMLoRD_v1_Xperia-2011-ICS-ROOT.
  9. Extract the Doomlord v1 file. then you will find file like below
    doomlord tool for xperia s
  10. Click adb.exe contained in the file folder extracted from DooMLoRD earlier. After that click file runme.bat.
  11. Then the display will appear as shown below.
  12. Press enter, to start the rooting process. your xperia s will boot several times, let it go to completion.
  13. The last step is flash the 4.0.4 kernel, can be downloaded in the requirements above .
  14. All steps have been completed, boot your device. Check whether there is a superuser files in your phone, if you find it, means your device has been successfully rooted. If not repeat the steps above.
Read also : how to root sony xperia s

Good luck, i hope it will be useful. If you have any questions can contact via email or comment. Wait for the next tutorial update xperia.

Title Post: Tutorial Root Sony Ericsson Xperia Arc / Arc S ICS 4.0.4 - Lock Bootloader
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