rollno:13: downgrade xperia x10 to android 2.2/2.1.........

if you want to downgrade

download the flashtool and firmwares from here flashtool

X10i Generic

Global GGL Generic 1232-9897 build 3.0.1.G.0.75 (MD5: 0fa325992ac4186a5499e79e57f9d2b9)

Generic version 2.3.3 build 3.0.1.G.0.75 (MD5: 36F52BAA3556CDD7E56383614C01E5D6)

Generic version 2.1update1 build 2.1.A.0.435 (MD5: 11712b23ed90eb0c279d19d2f4bcd3b0)

Generic version 2.1update1 build 2.1.A.0.435 (MD5: 11712b23ed90eb0c279d19d2f4bcd3b0)
Generic version 2.1update1 build 2.0.2.A.0.24 (MD5:715527B6E25871B3EC01119DF84E696A)
Generic version 2.1update1 build 2.0.A.0.504 (MD5: 38006C35A6935F45D14A2B3F1D42FFE0)

X10i Branded
Bouygues Telecom version 2.1update1 build 2.0.A.0.504 (MD5 : 3B3B3F411FE6017B06FA4030CC68578D)

X10a Generic

Generic version 2.1update1 build 2.1.A.0.435 (MD5 : 0C67A08A4B120EBA87E395865F431E81)
Generic version 2.1update1 build 2.0.2.A.0.24 (MD5: E592508FC714A9F2CB6BDC41914ABC81)
Generic version 2.1update1 build 2.0.A.0.504 (MD5: F3735BF4D48ED4BBA8BF5BC60CD1D34C)

Firmwares addons for any 2.1 firmware for FlashTool version 0.2.4 and up

Dual touch addon for any X10i/X10a (thanks to Bin4ry) (MD5: 4884A39E40CFC3550D51626D834AC185)

Install it and you will see 5 folders

Custom

Drivers

Firmwares

Loaders

X10Flasher_lib

take the firmware to the "Firmwares" folder

click on X10FlashTool (Application)

click on Falsh

Press Ok

it will ask you to connect your phone on Flashmode (turn off your phone, press the back button, then connect the USB) press OK

Click Flash

This is an step by step guide

OPTION 1 - Install *.ftf files

1. Install Flashtool

2. Copy the *.ftf files that you `ve downloaded earlier to firmwares folder from Flashtool.

3. Click "Flash" button from flashtool and select the *.ftf file firmware and click "OK"

4. Relax and wait a while. When the proccess is completed you will get a popup message (don`t click on that!!!)

PHP Code:

a. Unplug your USB cable from PC

b. Power off your phone

c. Press back button and keep your finger on button

d. Plug USB cable to PC

e. Check if the green LED appear

f. On popup message press "OK" button

g. When "Found at USB/........" appear on flash tool you may release"back button", sit down, relax and wait.