Sony experia phones can be flashed by so many tools including free tools available on the internet.

A sony Android phone even in dead condition if can be detected by pc should be able to flash via one of the following tools provided the problem is software related.


I will be listing only free tools as professional tools have their respective sections.


FLASH TOOL


This is a free professional sony android flasher tool by Binary and Adroxyde.
Credits to them for the great gift.

Flashtool currently perform the following




Flash original Images (Android 1.6, 2.1, 2.3 Images)
Root your phone
Install Recovery, Busybox, custom kernels
Clean your Rom (remove /system/apps apps of your choice) (Be careful, unless you really know what you do, do not modify the default list. This can make your phone stuck at the SE Logo)
Clear dalvik cache
Optimize (install of JIT v2) (Disabled in 0.4, will readd it as a plugin for 2.1 phones only)
Customize (installs apps found in the custom/apps folder of the flashtool)
Clean uninstalled (remove any references to system apps removed in the Clean (root needed) step)
Edit any text file on the device
Rebrand your device






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The newest models supported by flashtool are
ST17 - coconut - ACTIVE
LT15 - anzu - ARC
LT18 - ayame - ARC S
WT19 - satsuma - LIVE WALKMAN
ST15 - smultron - MINI
SK17 - mango - MINI PRO
MT15 - hallon - NEO
MT11 - haida - NEO V
R800 - zeus,zeusc - PLAY
MK16 - iyokan - PRO
ST18 - urushi - RAY.

Flashing using pc companion

The official sony pc companion can also flash devices in bad state as long as flash mode is detected by pc.


simply download and install pc companion from the link below

Download for PC - Sony Smartphones (UK)

Instructions

First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu.
In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
On your computer, click Continue at the bottom of this page to start the unlock boot loader process.
Read through the information in the pop up window and click Yes, I’m sure, if you are still confident you want to unlock the boot loader.
Read through and accept the legal terms. Click I Accept.
Enter your name, a valid email adress and the first 14 digits of your phone’s IMEI or MEID number (remove the last digit if necessary). Click Submit. You can view the IMEI or MEID number by entering *#06# on your phone.
The unlock boot boot loader key will be sent to your email. Save it for later use.
Download and install the latest Android SDK from developer.android.com.
Download and unzip this file. This is the standard android_winusb.inf-file, with a few lines of code added to enable Fastboot to support Sony and Sony Ericsson devices. Make sure you are running Google USB Driver package revision 4 or higher in your Android SDK. You can see current Google USB Driver package revision in the SDK Manager.
Place the unzipped file in the usb_driver folder, located in the Android SDK > extras > google folder on your computer. Accept to replace the old android_winusb.inf-file with the new file. If you can't find the usb_driver folder, please install the Google USB Driver Packager using the Android SDK manager.
Turn off your phone.
On your phone, push and hold the Fastboot button at the same time as you connect the phone to the computer with a USB-cable. The Fastboot button may differ between different phone models. See the Fastboot buttons page for more information on what button use on your phone.
On your computer, you will be asked for drivers. Point to the usb_driver folder where you placed the android_winusb.inf-file, and select the Android Boot loader Interface-file.
Open a command window and go to the tools folder within the Android SDK folder.
Enter fastboot.exe -i 0x0fce getvar version, and verify that you get a response back (for example "0.3"). This means your phone is connected properly.

Warning! If you perform this step, you will unlock the boot loader. This may void your warranty and/or any warranty from your operator. If you still want to unlock the boot loader of your phone, enter fastboot.exe -i 0x0fce oem unlock 0xKEY, where KEY is the unlock boot loader key you got in the beginning of this instruction. The boot loader should now be successfully unlocked.






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currently tested bootloader unlocked phones by users



Sony Ericsson Xperia™ PLAY
Sony Ericsson Xperia™ arc
Sony Ericsson Xperia™ arc S
Sony Ericsson Xperia™ neo
Sony Ericsson Xperia™ neo V
Sony Ericsson Xperia™ pro
Sony Ericsson Xperia™ mini
Sony Ericsson Xperia™ mini pro
Sony Ericsson Xperia™ ray
Sony Ericsson Xperia™ active
Sony Ericsson Live with Walkman™
Sony Xperia™ S
Sony Xperia™ P
Sony Xperia™ go
Sony Xperia™ U
Sony Xperia™ sola
Sony Xperia™ acro S
Sony Xperia™ ion
Sony Xperia™ miro
Sony Xperia™ tipo
Sony Xperia™ tipo dual
Sony Xperia™ V
Sony Xperia™ J
Sony Xperia™ T
Sony Xperia™ TX
Sony Xperia™ E
Sony Xperia™ E dual
Sony Xperia™ ZL
Sony Xperia™ Z