[Sony Ericsson XPERIA X10 Mini] faiyyaz:
SE Tweaker Tool is a Tool + Guide to make some tweaks to ur phone With ease.. For Now it Only Supports X10 mini pro | X10 mini | X8 | W8

This TOOL includes of all the necessary utilities like Root/UnRoot for Xperia U20i and Xperia X8, installing CWM Recovery for FOR Xperia U20i and Xperia X8, UNLOCKING/RELOCKING THE BOOTLOADER FOR X10 mini pro | X10 mini | X8 | W8 With necessary guide [ tried to make it as simple as possible :P]

NOTE: Dealing with the bootloader is highly dangerous and can result in a hard brick if you don't follow the proper instructions. Then, you will have to go and repair your phone by sending it to SE.:( I am not responsible if your phone dies on you because you didn't follow instructions or you screwed up somehow.

Only For people getting error related iscoolbutton.ocx.. Just Run the ocx_fix.bat in the downloaded tool and then Run the SE Tweaker Tool..

For Rooting n stuffs just click it on the ROOT/Unroot button in the tool [Supports Xperia u20i and Xperia X8 for now]

For Unlocking Bootloader read below:

Requirements: Rooted phone, Sony Ericsson PC Companion installed in PC, Courage

You do not need to have a sim lock on your phone to unlock your Bootloader.

Recommended: ----'

-->Disable your Antivirus (it might find a "virus" in ADB.exe even though there isn't one and might even interfere in bootloader unlocking process)

-->USB debugging enabled..

Note: Unlocking the bootloader of your phone will restore the original sim lock of your phone (if you had any) unless if you unlocked with EMMA/IMEI unlock code or it was factory-unlocked or if SE unlocked it! However, some users have reported that using msm7227_semc.cmd on their sim-unlocked phones did not restore the sim lock onto their phone. Unlock the bootloader on your sim unlocked phone AT YOUR OWN RISK!

Download the files needed for the unlock.

Download Flashtool (needed for S1tool to work properly and for loading custom kernels next time) and install it (not necessary if you already have Flashtool):

Download and install Flashtool v0.5.3 here (follow instructions on the website): http://androxyde.github.com/Flashtool/

(Credits go to Androxyde and Bin4ry for this tool.)

After installing it, open the flashtool folder and open the drivers folder inside that. Double click on the ggsetup-2.2.0.11.exe file inside and install Gordon's Gate.

Then restart your computer... if you dont Find GORDAN'S gate.exe in the drivers folder download it from my attachments ..

Steps To unlock Bootloader: [SUPPORTS X10 mini pro | X10 mini | X8 | W8]

1) After installing Gordans Gate and the flashtool Turn off your phone.

2) Download SE Tweaker Tool AlsoMirror[Mediafire] and unzip it.

3) Run SE_Tweaker_Tool.exe from it.

NOTE: If no flashtool download from the dialog box appeared after running unlockbootloader.exe

4) Turn off ur phone

5) Select unlock_bootloader button.. run S1tool button to check if the your phone has SIM UNLOCK CERTIFICATE.[i.e click on "Do" in s1tool and compare the output]

6) Boot your phone into flash mode (make sure you installed Gordon's Gate and usb debugging is on). All users, press and hold back button while connecting cable from PC to phone. Continue holding back button until you get some output. The LED on your phone should flash green if it is in flash mode.

7) Click on how it should look.. it will give u an idea how the output will be..

NOTE- At this moment you should know if you have SIM UNLOCK CERTIFICATE or what ever the output was.. keep that in mind.. :D

8) Now disconnect[/COLOR] your phone n boot it up.Connect it again to PC (make sure your USB DEBUGGING is enabled and antivirus is disabled)

9) Now click the check box which is right for you [Read them carefully it will be according to the output you got with s1tool] run the corressponding button..

10) After it proceed to check if the unlocking of bootloader was done by clicking Check If your "Bootloader is unlocked And Proceed" button..

11) Reboot your phone to flashmode as before.. Run s1tool.. N compare the output..

If the line RUNNING S1_EROM FROM VER "#8A02$" has a lowercase "r" letter replacing the "#" (RUNNING S1_EROM FROM VER "r8A02$"), your bootloader has been unlocked . If it has an uppercase "R" replacing the "#" (RUNNING S1_EROM FROM VER "R8A02$"), your bootloader is NOT unlocked.

Re-locking the Bootloader Follow the steps in the Tool

Link to Custom kernel's Only For U20i

1) nAa kernel By nAa

2) ZombiePanic kernel by Slade87

3) Fa kernel By farazfaraz

4) Simple kernel By Paul-xxx

DOWNLOAD THE KERNEL WHICH YOU WANT

[Note: If it is downloaded in *.zip or *.rar format just open with any zip tool like Winrar or 7zip tool n extract the *.ftf file to your drive n later put in into the /firmwares folder of flashtool and follow below steps to Flash]

How to flash custom kernels:

Put the *.ftf file in the /firmwares folder. ( flash only the .ftf file.)

1. Open Flashtool.

2. Click Flash.

3. Select (kernel name).ftf.

4. Turn off your phone.

5. Connect your phone in flash mode (only when the popup window prompts for you to do so). (To boot into flash mode, press and hold back button while connecting your phone to the PC using an usb cable).

6. Disconnect your phone (do so only when the popup window to prompts you to disconnect your phone).

7. Reboot and you have a custom kernel!

8. Confirm by going to Settings --> About Phone --> Kernel version. It should have the name of the kernel you flashed.

--> To flash back to stock kernel, download the appropriate file below and follow steps listed above.

X8 (E15) and W8 stock kernel:

Download link: [ If anyone could provide ]

X10 mini pro (U20) stock kernel:

U20 Stock Kernel Download link

X10 mini (E10) stock kernel:

E10 Stock Kernel Download link

For FAQ refer to http://xdaforums.com/showthread.php?t=1254225

CREDITS:

Androxyde and Bin4ry, Blagus, the_laser, maxrfon and of course spyderx.

If you have a problem that is not listed above please post it in this thread ;)

Check the 3rd post for changelog.. :)

DOWNLOAD TOOL --->> SE Tweaker Tool V4.0

also

Mirror[MediaFire]

Hit the Thanks button if the tool was useful.. ;)

Only For people getting error related iscoolbutton.ocx.. Just Run the ocx_fix.bat in the downloaded tool and then Run the SE Tweaker Tool..