Rooting using the Exploid method:
http://android.doshaska.net/x10miniroot

Guide:

This hack http://c-skills.blogspot.com/2010/07...-trickery.html is almost universal.
I've compiled and tested a version for X10 mini.
Download: exploid_x10mini.zip
- download and extract the archive...

You will need ADB from Android SDK and USB drivers for X10 mini (part of Sony Ericsson PC Companion).
Enable USB debugging on the phone in Settings>Applications>Development and connect the phone to PC via USB.
Add the Power Control widget to your active widgets on the phone, so you can quickly turn off and on the wi-fi function.
From the command line (on windows it's cmd.exe):
cd c:\exploid_x10mini (or another folder where you've extracted the files from exploid_x10mini.zip)
adb push Superuser.apk /sdcard/Superuser.apk
adb push su /sdcard/su
adb push exploid /sqlite_stmt_journals/exploid
adb push busybox /sqlite_stmt_journals/busybox
adb shell
cd sqlite_stmt_journals
chmod 755 exploid
chmod 755 busybox
Immediately after the next command, you will need to disable and enable the wi-fi using the power widget on the phone:
./exploid
then run:
rootshell
enter password rootnow
prompt will change to # - now we have root
./busybox cp /sdcard/Superuser.apk /system/app/
./busybox cp /sdcard/su /system/bin/
./busybox cp busybox /system/bin/
chmod 4755 /system/bin/su
rm /system/bin/rootshell
exit - out of rootshell
exit - out of adb shell

Verification:
When you run the abd shell again and issue su command, the Superuser.apk will run on the phone and will ask whether to allow the root permissions...

Mod edit: I felt it was better to have the guide her for new users. Or people not trusting external links.

Nice one ! Really !

Regards
Bin4ry

Works too on Mini Pro !
Nice one !!!

gratz! Can't wait to get home and see if it works on an X10 Mini Pro.

edit: just read bin4rys update. woo!

Confirmed:Mini Pro got root.

Xperia Mini pro U20i.

Now with "ROOT" it should be "easy" to remove the applications that the network providers install by default. Maybe i'm wrong.

in the adb shell
rm -r /system/app/*********.apk

Have to try this at home.

Working perfectly in X10 mini (E10i), many thanks Kabaldan!

To remove or copy apps, the path would be:

adb shell
$su
#busybox rm -r /system/app/<file.apk> --removes the app
#busybox cp /sdcard/<file.apk> /system/app/<file.apk> --copies the app from SDCard

Originally Posted by kabaldan  

Rooting using the Exploid method:
http://android.doshaska.net/x10miniroot

can't download exploid_x10mini.zip from mediafire
any other download link?

Cool

Whats coming next? Do I see Android 2.2
Also can you mention how to create a backup of current SE x10 Mini ROM, so that if in future i want to get back to SE Default, i should be able too

Dubble post sorry

Hi. OK i am a complete noob so please small words lol

I downloaded the ADB and the Exploit but were to from here ?

I am on a win7 64x machine and would really like to unlock the full potential of my phone (x10 mini)

If i dubble click the install in the SDK folder it want to update some stuff, do i do all of them or what do i do?

On the exploit page it gives you commends to type .. do i do that in CMD or how do i do them?

Pls help me