WHEN i RESTARTED MY XPERIA i ONLY GET EMERGENCY CALLS ONLY. i THEN PRESS THE START BUTTON AND WHEN MY SCREEN COMES UP FOR MY PASSWORD AFTER I KEY THAT IN IT GOES TO EMERGENCY CALLS ONLY.

Soft Reset

If your Xperia Z Series is frozen and not responding when pressing on buttons or tapping the screen, try a soft reset. A soft reset will not wipe any data from the device.

1. Open the SIM card door cover on the side of the phone.
2. Use the end of a paper clip to press the small "OFF" button until the device vibrates. The Xperia will shut off, allowing you to restart.

Hard Reset

If you wish to return your Sony Xperia Z Series smartphone to factory default settings, a hard reset is the answer. If you perform a hard reset, it will wipe all data and settings from the device. You may wish to perform these steps if you've been experiencing lock ups or other types of malfunctions, or if you will no longer be using the device.
Note: If you think you may need any information stored on the phone in the future, be sure to backup the data.

Option 1 - Hardware Buttons

1. With the device powered off, press and hold "Power" and "Volume Down".
2. When the "Sony" screen appears, release both buttons.
3. The Recovery screen will appear. Use the volume buttons to toggle the selection to "Factory Reset", then press "Power" to select.
4. Use the volume buttons to toggle the selection to "Yes", then press "Power" to select.

Option 2 - From Android OS

1. Open "Settings".
2. Select "Backup & reset".
3. Tap "Factory data reset".
4. Select "Reset phone".

The Sony Ericsson Xperia Z Series will then go through the process of formatting the memory. Wait for it to restart and factory default settings will be restored.

EMERGENCY CALLS
Emergency calls can be made in all device conditions as long as there is any
available network signal. From locked screen conditions press the Emergency
Call button to open the dialler, then dial 000 and press the handset icon to
make the call. In all other conditions press the Home key to return to the
home screen then press the handset icon to open the dialler. Enter the
Emergency number (000 or 112) and press the handset icon to make the call.

Option : Hard Reset SONY XPERIA MIRO (ST23i/ST23a) with Hardware Key Button:

1. Make sure the battery charge properly before doing this step
2. Do not forget to backup all important data
3. Turn off the SONY XPERIA MIRO (ST23i/ST23a)
4. Press and Hold together: Power Button + Volume Up Button for several seconds
5. Follow the menu at LCD screen to continue the hard reset SONY XPERIA MIRO (ST23i/ST23a)

With the phone on

1. Start by opening Main Menu next on open Settings folder.
2. Tap on Privacy and select Factory Data Reset.
3. Tap on Reset Phone, enter your password (if required) and confirm by selecting Erase Everything.
4. Let the phone restart and you're done.

With Phone off:
1. Start with the phone off, to do it press Power button.
2. Press and hold both the left and right Action buttons under the display.
3. Press the Power button while the others 2 keys are still held.
4. Follow the on-screen instructions as the phone immediately begins the Factory reset process.

I hope this helps :)

YES you can unlock it yourself but unfortunately you will have to reset it and lose all your apps/pics etc.

1. switch off. Hold volume UP and power button and home button simultaneously. release home button (and press again) while still holding volume up and power button. A boot up screen will pop up. Use volume keys to select (reset and restore) press home button to select.

2.Once reset and the phone starts up again it will still show locked. Get another phone to call your phone. as soon as you swipe answer press back key (arrow key) (you gotta be quick) and the main home screen will come up!!! . press the left menu button and select settings and turn off pattern code then go to menu and factory reset the phone again.

It worked for me ,.. hope it works for you too

1ST IS : 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 2nd IS :1 From the Xperia 10 Home screen, tap the applications bar.
2 Tap Settings > SD card & phone storage > Factory data reset > Reset phone.
3 Enter your screen unlock pattern.
4 Tap Erase everything.

Done! Now, You can reset your Xperia X10 to its factory default settings.

This is a soft rest its never hardrest, pls we someone to give haedrest solution,-even when there is password, which can be removed easiy

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 i forgot my Sony Ericson's xperia x10 screen patter and i forgot my google account too... what should i do ? please help me (T_T)

*Turn off the phone
*take off battery & put back in
*press and hold down the right & left silver buttons just under the screen
*with stylus press in the hole on the right side of battery
*after 10Sec you will be prompted to press the R key
*If successful press the space key to finalize changes

www.usedcellphoneshop.com

I'm afraid you'll have to hard reset your device to get rid of the password request screen. Hope you have a recent backup of your personal data, to be restored afterwards, because a hard reset procedure sets your device to its factory defaults. Anyway, here it goes: - If your device is not already in stand-by, press the power button to turn it off; - Press and hold both left and right buttons on the front of the device (the ones right under the screen); - Whilst keeping holding the keys, briefly press the power button to turn the device on; - Release the keys only after a blue screen asking for confirmation comes up; - Slide the qwerty keyboard and press 'r' (for reset).
Hope it works for you.
Cheers! Carlos