My xperia x10 with android 2.3.3 freezes and thenkeeps on restarting for itself. i have flahed it twice but it's not solving the problem.. please...please..please help me.....

Contact your service provider to get your Network pin for your Sony Ericsson Xperia X10. If they failed to provide the pin you can get the Network Pin from the site Mobile-Unlocker.com ,and unlock it yourself using unlocking instructions which is given in the site itself.

sony ericson e10i

If you're looking to use the phone on other carriers aside from the original one, then you would need to unlock it first using the unique unlock code that's for your phone only.

Unlock Sony Ericsson Xperia X10

Free Unlock code no one provide,also not possible to get..it' latest Model Mobile so that You need to use the paid Unlock code,to get the code reach the Online sites,get the code at Superunlockcodes and Unlock it.....Find which country Network it locked now!!!
Sony Ericsson Xperia X10 mini pro Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your Sony Ericsson Xperia X10 mini pro mobile phones. If you enter over a certain amount of wrong unlock codes on your Sony Ericsson Xperia X10 mini pro mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your Sony Ericsson Xperia X10 mini pro with a Not Allowed SIM Card.
2. Your Sony Ericsson Xperia X10 mini pro will request to enter an unlock code.
3. Tap the box where you have to input the code and a number pad will appear.
4. Type in the unlock code we send to you.
5. Press the 'Unlock' button on the phone.
6. Your Sony Ericsson Xperia X10 mini pro phone should now be unlocked.

*NOT ACCEPTED : We mean, to use a sim card from a network other than the network your Sony Ericsson Xperia X10 mini pro is locked to.
Each Sony Ericsson Xperia X10 mini pro mobile phone has an unique unlock code. You can buy the unique unlock code for your Sony Ericsson Xperia X10 mini pro mobile phone using the form above.

I think you overclocked it too much. Reset the phone to factory default

1-Turn off your Sony Ericsson Xperia
2-Remove the battry and replace it back in
3-Press anda hold down the left and right silver buttons just under the screen
4-With the stylus,press in the hole on the right side of tehe battery
5-After 10 seconds,you will be prompted to press the R key on your silide-ou keyboard
6-If successful press the Space Key on your slide-out keyboard to finalise changes

Hi ,
Still the official announcement still didnt came from Sony ,you have to wait for some time.
There are some unofficial guides are there, if you want to take a look means check them out.
http://www.addictivetips.com/mobile/install-android-2-2-1-froyo-custom-rom-on-sony-ericsson-xperia-x10/
http://www.dkszone.net/install-android-2.2-froyo-xperia-x10

http://android.modaco.com/content/sony-ericsson-xperia-x10-x10-modaco-com/305806/sim-unlock-sony-ericsson-xperia-x10/

Good luck!

DEAR FRIEND, YOU WILL HAVE TO RELOAD YOUR PHONE WITH A FLASH FILE.

Use this following steps to unlock your mobile

- Switch ON your Sony Ericsson Xperia X10 without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

And also get the unlock code here theunlockarena.com

i don't thrust your name you thief:D
no i don't know.. i'm sorry