How to Hard reset Sony St27i with McAFee Antivirus mobile security

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Got this Sony St27i with McAFee Antivirus Mobile Security How can I hardreset need your help thanks in advance

[Service Team]

Got this Sony St27i with McAFee Antivirus Mobile Security How can I hardreset need your help thanks in advance

Sony Xperia Go hard reset

Xperia go ST27i ST27a reset via MENU

Your device freezes or has fatal errors sony ericsson st27
Be patient while resetting your phone. Restarting the phone during a reset procedure may
damage the phone permanently.
To force the phone to restart

1 Press and hold down both the volume up key and the power key for five seconds.
2 After your phone vibrates once, release the keys. The phone restarts automatically.
Press and hold volume up key+ power button together until phone restart.
To force the phone to shut down
1 Press and hold down both the volume up key and the power key for 10 seconds.
2 After your phone vibrates three times, release the keys. The phone turns off automatically.
Resetting the phone
You can reset your phone to its original settings, with or without deleting all of your
personal data. It is possible to reset the phone to the state it was in before you first
turned it on. But before you perform a reset, make sure to back up any important
data saved on your phone.
To reset the st27a phone
To avoid permanent phone damage, do not restart the phone while a reset procedure is
underway.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select Settings → Privacy → Factory data reset → Reset phone → Erase everything.
Clear storage : Erase the credential contents from the device and reset the password

Set an unlock pattern
Once you set a screen lock, your device will require an unlock code each time you turn it on or unlock the touch screen
Settings → Location and security → Set screen lock → Pattern

If you forget your PIN or password, bring your device to a Service Centre to reset it.
Set an unlock PIN code
Settings → Location and security → Set screen lock → PIN
Set an unlock password Sony Xperia go,
Settings → Location and security → Set screen lock → Password.
firmware update with PC companion software

Download PC companion and install
Install PC companion on your PC computer. Follow instruction. For firmware update you need a micro USB cable. When the pc recognizing your XPERIA go st27i it will install the necessary driver files.
After your XPERIA go connected press Start / in Support Zone

You can also use Sony update service tool

PC Suite is out of date use PC companion software instead