Consolidated instructions to unbrick your x10 mini pro - Sony Ericsson XPERIA X10 Mini

So you did the inevitable... you got a phone that's bricked.. fear not.. this happens to all of us.. consider it a "right of passage" when it comes to dealing with custom ROM's
Here at xda, help is never too far away (I was there once too)
I've tried to get you back to functioning latest Local 2.1 with recovery (xrecovery)
0) You'll lose all data with this method....
come to terms with that... not stuff on the sd card but data of your phone, sms'es, contacts, applications etc
1) Turn off your phone
Pull the battery and reinsert it if you have to...
2) Install Flashtool
go here and downlad flashtool
Install on your windows pc
Thank Androxyde and Bin4ry for this kickass tool
3) Download and flash stock 2.1
Go to this thread and download a 2.1 rom in your language of choice (Dont worry that it's not your local ROM)
4) Flash this rom using Flashtool
In the first link there is a how-to. follow it and flash the downloaded ROM from step 3
Once you have 2.1 on your phone,
5) Enable USB Debugging and Root
Use flashtool and root your phone using the simple button "Root" (I know!! what an awesome tool right!!?? )
Once rooted, disconnect the phone.
6) Get yourself a root file manager
Download a file manager capable of root access such as root explorer or solid explorer.
7) Access and edit the build.prop file
Open the file manager. U should get a superuser prompt to allow root access. Touch "Allow". Go to /system and mount the system as RW. there's a file there called build.prop. open it in a text editor. Find all instances of a number that looks like this 1238-9045 (this is my build number, yours will not be the same). Edit this number(all 3 instances) to look like your build number (Found on original box or behind the battery). Save the file and exit
8) Update via SEUS OR PC companion
Now connect your phone back. PC companion or SEUS will tell you there is a new update available. follow the instructions and you'll be running the latest 2.1 for your region and variant of the mini pro
9) [optional] Root and recovery
The new firmware installed by SEUS/PC companion is not rooted. If you need it, root again (same way as in step 5). once rooted, click "Ask root perms" on flashtool. Once root access is confirmed, install xrecovery from the menu.
Hope that helped!
Enjoy
Edit: if you get an error while opening flashtool saying "JVM could not be started because heap size bla bla bla..." Please try on another pc and maybe reinstall windows on urs

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Bricked u20i
My phone keeps disconnecting nce the green light goes on. Please help

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I have bricked xperia mini x10, and it's failing to boot. Debugging is turned off, so flashboot can't recognize it.
16/010/2012 19:10:31 - INFO - Device connected with USB debugging off
16/010/2012 19:10:31 - INFO - For 2011 devices line, be sure you are not in MTP mode
Click to expand...
Click to collapse
Can someone help?

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Immortalis said:
I have bricked xperia mini x10, and it's failing to boot. Debugging is turned off, so flashboot can't recognize it.
Can someone help?
Click to expand...
Click to collapse
Repair it with SEUS or PC Companion.
Step A: leave your phone disconnected from your PC
Step B: Run SEUS/PC Companion, and select update
Step C: It doesn't recognise your phone because it's disconnected and give you a repair option
Step D: Select it, choose your model, it will download the firmware
Step Ea: You get a popup, Press the back-button on your phone while it's off and plug in the USB-Cable
Step Eb: If you can't turn off your phone, plug in the USB-cable and press home- and power-buttons at the same time, it will do a hard reboot and enter flashmode.
Step F: Wait till it's done...

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everything past item 3 is pretty hard since we can't acces anything on phone(that's bricking a phone right) to enable usb debugging.
Good tutorial though for those who installed a custom rom and they want to revert to original plus root acces.
Any ideea how to force seus or flash to force flash?

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slvjpn said:
everything past item 3 is pretty hard since we can't acces anything on phone(that's bricking a phone right) to enable usb debugging.
Good tutorial though for those who installed a custom rom and they want to revert to original plus root acces.
Any ideea how to force seus or flash to force flash?
Click to expand...
Click to collapse
You don't need usb-debugging in order to flash your phone.

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SmG67 said:
You don't need usb-debugging in order to flash your phone.
Click to expand...
Click to collapse
tell this to my sister's x10 pro mini ). I know your right but the phone is @&&&@%))+6)-)-))-=+( up so it doesn't know human comands

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Help needed !!
Hi to all,i`m new on this forum and new to Sony Ericsson!
Few days ago i did a repair option with the PcCompanion,becouse i removed to much apk`s.
After about 2 minutes,PcCompanion displayed error (code 100) and stopped flashing!
Searched the internet and found solution!
Flashtool!
But no way it keeps telleing me an error!
17/028/2012 17:28:11 - INFO - <- This level is successfully initialized
17/028/2012 17:28:11 - INFO - Flashtool Version 0.7.0.0 built on 2012-04-14 11:34:01
17/028/2012 17:28:11 - INFO - You can drag and drop ftf files here to start flashing them
17/028/2012 17:28:20 - INFO - Device disconnected
17/028/2012 17:28:38 - INFO - Selected Xperia X10 Mini Pro (U20)_2.1 (2.1.1.A.0.6) Reloaded_Greek (by Leajian).ftf
17/028/2012 17:28:38 - INFO - Preparing files for flashing
17/028/2012 17:28:53 - INFO - Please connect your device into flashmode.
17/029/2012 17:29:01 - INFO - Device connected in flash mode
17/029/2012 17:29:02 - INFO - Opening device for R/W
17/029/2012 17:29:03 - INFO - Reading device information
17/029/2012 17:29:03 - INFO - Phone ready for flashmode operations.
17/029/2012 17:29:03 - INFO - Start Flashing
17/029/2012 17:29:03 - INFO - Flashing loader
17/029/2012 17:29:04 - INFO - Loader : S1_Loader_Root_8e35 - Version : R4A045 / Bootloader status : UNROOTABLE
17/029/2012 17:29:04 - INFO - Flashing fota1.sin
17/029/2012 17:29:04 - INFO - Ending flash session
17/029/2012 17:29:04 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="MEMORY_CLASS";ERR_STATIC="HASH_VER";ERR_DYNAMIC="Block verification failed";
17/029/2012 17:29:04 - ERROR - Error flashing. Aborted
17/029/2012 17:29:05 - INFO - Device connected in flash mode
17/029/2012 17:29:07 - INFO - Device disconnected
17/029/2012 17:29:09 - INFO - Device connected in flash mode
please any help will be usefull!
How to bring back alive my X10 Mini Pro?
Now the only thing happends,green blink for 1 second and a bit vibration!
Also tryed with SEUS,no suc6!

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(Damn I've been gone a while)
Not too sure of the greek firmware file bro.. can you put the link of the forum where you got it from? are you sure it is a stock firmware?
gixxerfan said:
Hi to all,i`m new on this forum and new to Sony Ericsson!
Few days ago i did a repair option with the PcCompanion,becouse i removed to much apk`s.
After about 2 minutes,PcCompanion displayed error (code 100) and stopped flashing!
Searched the internet and found solution!
Flashtool!
But no way it keeps telleing me an error!
17/028/2012 17:28:11 - INFO - <- This level is successfully initialized
17/028/2012 17:28:11 - INFO - Flashtool Version 0.7.0.0 built on 2012-04-14 11:34:01
17/028/2012 17:28:11 - INFO - You can drag and drop ftf files here to start flashing them
17/028/2012 17:28:20 - INFO - Device disconnected
17/028/2012 17:28:38 - INFO - Selected Xperia X10 Mini Pro (U20)_2.1 (2.1.1.A.0.6) Reloaded_Greek (by Leajian).ftf
17/028/2012 17:28:38 - INFO - Preparing files for flashing
17/028/2012 17:28:53 - INFO - Please connect your device into flashmode.
17/029/2012 17:29:01 - INFO - Device connected in flash mode
17/029/2012 17:29:02 - INFO - Opening device for R/W
17/029/2012 17:29:03 - INFO - Reading device information
17/029/2012 17:29:03 - INFO - Phone ready for flashmode operations.
17/029/2012 17:29:03 - INFO - Start Flashing
17/029/2012 17:29:03 - INFO - Flashing loader
17/029/2012 17:29:04 - INFO - Loader : S1_Loader_Root_8e35 - Version : R4A045 / Bootloader status : UNROOTABLE
17/029/2012 17:29:04 - INFO - Flashing fota1.sin
17/029/2012 17:29:04 - INFO - Ending flash session
17/029/2012 17:29:04 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="MEMORY_CLASS";ERR_STATIC="HASH_VER";ERR_DYNAMIC="Block verification failed";
17/029/2012 17:29:04 - ERROR - Error flashing. Aborted
17/029/2012 17:29:05 - INFO - Device connected in flash mode
17/029/2012 17:29:07 - INFO - Device disconnected
17/029/2012 17:29:09 - INFO - Device connected in flash mode
please any help will be usefull!
How to bring back alive my X10 Mini Pro?
Now the only thing happends,green blink for 1 second and a bit vibration!
Also tryed with SEUS,no suc6!
Click to expand...
Click to collapse

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cant flash using SEUS...its saying i have latest version but in reality the phone is already bricked by me and not having the original stock firmware... now it just keeps restart with sony erricson logo and turns off again and bootloop...cant root, cant flash... heard that there is some special modified usb that will make the bootloader enter download mode so that we can flash fresh firmware inside it?

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jasonmiracle said:
cant flash using SEUS...its saying i have latest version but in reality the phone is already bricked by me and not having the original stock firmware... now it just keeps restart with sony erricson logo and turns off again and bootloop...cant root, cant flash... heard that there is some special modified usb that will make the bootloader enter download mode so that we can flash fresh firmware inside it?
Click to expand...
Click to collapse
You can always flash... post your model and if your bootloader is locked or unlocked ( since you're on SE kernel logo, i assume it's locked), and i can provide you with stock firmware (E10i or U20i) to flash with flashtool.

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SmG67 said:
You can always flash... post your model and if your bootloader is locked or unlocked ( since you're on SE kernel logo, i assume it's locked), and i can provide you with stock firmware (E10i or U20i) to flash with flashtool.
Click to expand...
Click to collapse
hi, i am u20i model...i accidentally locked the bootloader while having nna kernel i think, because flashing customised rom and kernel, my phone will enter bootloop, thats why i pressed Restore inside s1tool.exe, which got my bootloader locked....
and now that my bootloader is locked, and i cant root my phone without turning it on( the phone bricked cant turn on anymore) i cant unlock my bootloader to flash new kernels into it... please do provide stock firmware and rom for me... i can only flash stock kernel, but not the rom... after i flashed the stock u20i kernel, i dont know how to flash the original rom into my phone, since now my phone, didnt have the CWM or XRecover anymore, which can browse my SD card, and install the rom from .zip files....
flashing stock kernel no problem but did not know how to flash the stock rom
01/041/2012 15:41:58 - INFO - Device connected in flash mode
01/041/2012 15:41:59 - INFO - Opening device for R/W
01/041/2012 15:41:59 - INFO - Reading device information
01/042/2012 15:42:00 - INFO - Phone ready for flashmode operations.
01/042/2012 15:42:00 - INFO - Start Flashing
01/042/2012 15:42:00 - INFO - Processing loader
01/042/2012 15:42:00 - INFO - Checking header
01/042/2012 15:42:00 - INFO - Flashing data
01/042/2012 15:42:02 - INFO - Loader : S1_Loader_Root_8e35 - Version : R4A045 / Bootloader status : UNROOTABLE
01/042/2012 15:42:02 - INFO - Processing kernel.sin
01/042/2012 15:42:02 - INFO - Checking header
01/042/2012 15:42:02 - INFO - Flashing data
01/042/2012 15:42:05 - INFO - Ending flash session
01/042/2012 15:42:05 - INFO - Flashing finished.
01/042/2012 15:42:05 - INFO - Please unplug and start your phone
01/042/2012 15:42:05 - INFO - For flashtool, Unknown Sources and Debugging must be checked in phone settings
01/042/2012 15:42:06 - INFO - Device connected in flash mode
Click to expand...
Click to collapse
unable to flash customised kernel probably because of the locked bootloader
01/052/2012 15:52:27 - INFO - Device connected in flash mode
01/052/2012 15:52:27 - INFO - Opening device for R/W
01/052/2012 15:52:28 - INFO - Reading device information
01/052/2012 15:52:28 - INFO - Phone ready for flashmode operations.
01/052/2012 15:52:28 - INFO - Start Flashing
01/052/2012 15:52:28 - INFO - Processing loader
01/052/2012 15:52:28 - INFO - Checking header
01/052/2012 15:52:28 - INFO - Ending flash session
01/052/2012 15:52:28 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"
Click to expand...
Click to collapse
s1tool shows locked bootloader
i1109.photobucket.com/albums/h426/jasonforeverlove/11-2.jpg
problem- cant turn on the phone in order to choose usb debugging mode to root the phone
problem- SEUS cant detect update to my phone...
spent 3 weeks in vail...wish i can get it working ...reli hope to succeed in using customised ROM

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jasonmiracle said:
hi, i am u20i model...i accidentally locked the bootloader while having nna kernel i think, because flashing customised rom and kernel, my phone will enter bootloop, thats why i pressed Restore inside s1tool.exe, which got my bootloader locked....
...
spent 3 weeks in vail...wish i can get it working ...reli hope to succeed in using customised ROM
Click to expand...
Click to collapse
Download this, It's the complete SE 2.1 Firmware (Kernel and ROM), flashable with flashtool.
(It's about 213.5MB, although the site may display it's less in your download dialog, but it will keep downloading till it's all there)

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SmG67 said:
ubuntuone.com/515oWr7b8j4PeeZfm8xZ1pIt's the complete SE 2.1 Firmware (Kernel and ROM), flashable with flashtool.
(It's about 213.5MB, although the site may display it's less in your download dialog, but it will keep downloading till it's all there)
Click to expand...
Click to collapse
im trying this out... :victory:

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tks for the thread, dude

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My X10 mini pro won't turn on.
I've try the methods that mentioned in this thread but it all failed.
my phone still won't turn on. if i charged it, it's just boot for 2 seconds and then dead. repeatedly.
any suggestion?
*sorry for bad english

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itwasgood said:
My X10 mini pro won't turn on.
I've try the methods that mentioned in this thread but it all failed.
my phone still won't turn on. if i charged it, it's just boot for 2 seconds and then dead. repeatedly.
any suggestion?
*sorry for bad english
Click to expand...
Click to collapse
Repair with Sony Update Service or PC Companion?

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SmG67 said:
Repair with Sony Update Service or PC Companion?
Click to expand...
Click to collapse
already tried it. but still it won't turned on.

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flashtool does not recognize my phone
flashtool does not recognize my x10 mini pro, screen still remains black, seus and pc companion does not recognize it either. what do i do?:crying:

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itwasgood said:
already tried it. but still it won't turned on.
Click to expand...
Click to collapse
Your tried to unlock your booloader and now dont turn on?
If your phones was manufacturated after 11w29, you got a hard brick.