My Sony XPERIA Tipo Dual ST21i2 phone vibration is not working I just bought it yesterday. It was working awhile back when I received a call. Checked manual, reset it, check Sounds from the settings, volume etc... and nothing seems working. Any help please? I would appreciate very much. Tnx!

perform a soft reset, this should resolve the problem. the button is located behind the micro sd card slot cover, small red, you can't miss it. search on line regarding Xperia soft reset instructions, pretty simple and fast. you won't loose any data.

Your service provider has to authorize the unlock and they will provide the code. The account has to be out of contract and paid current before they will unlock it.

How To Track Your Lost Android Phone Without Tracking App try this link. Electro help

Install The flashtools drivers:Flashtool drivers exe Google Drive
After install plug phone in to PC(make sure USB Debugging is enabled on the phone) if driver does not install itself go to Control Panel --> System --> Device Manager and look under Other devices there will be one named Sony Xperia(will have a yellow Question mark next to it) right click choose "update driver". Choose "browse my computer for drivers" on next screen choose "Let me pick" option. under manufacturer choose Sony Ericsson and then install the ADB driver(If the Sony driver does not work try installing the google ADB driver that can be found in the Android SDK)

Check this site Hilal.
Contact us Sony Smartphones US

Restarts on Android happen sometimes just like with any other OS(windows,etc.) if it constantly restarts itself(Bootloop) then try a factory restore.

It is not possible to extract the stored password once connected to the network. There was a loophole previously in which wifi passwords can be accessed from the phone through an xml.
instead now to connect to your home network you should use the wps button on your router and connect it.

There is a solution by Sony for this problem.
Just follow the instructions: http://talk.sonymobile.com/t5/Xperia-miro-Xperia-tipo-tipo/TIPO-TOUCHSCREEN-FIX-PATCH-HERE/td-p/262920

sony xperia st21i2 too many pattern attempts lock.please help me.how to unlock it.