SONY Xperia SP C5303 Hard Reset Using Key

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This Hard Reset Solution By Hard Reset Key  
Turn Off Your Smartphone.

This Hard Reset Solution By Hard Reset Key  
Remove SD Card, Battery and Sim Card Form Your Smartphone.
This Hard Reset Solution By Hard Reset Key  
Insert The Battery in Your Smartphone.
This Hard Reset Solution By Hard Reset Key  
Press and Hold Power Key + Volume(+) Up Key + Volume (-) Down Key .
This Hard Reset Solution By Hard Reset Key  
In This Menu Choose Option Recover Using Volume Key or Power Key
This Hard Reset Solution By Hard Reset Key  
Then Come Android Recovery Menu .
This Hard Reset Solution By Hard Reset Key  
Press Volume up + Volume Down Key.
This Hard Reset Solution By Hard Reset Key  
Select wipe data/factory reset ( Using Volume Key).
This Hard Reset Solution By Hard Reset Key  
Press Power key.
This Hard Reset Solution By Hard Reset Key  
Select yes----delete all user data (Your All Data Deleted).
This Hard Reset Solution By Hard Reset Key  
Press Power Key.
         Wait Few Seconds
This Hard Reset Solution By Hard Reset Key  
Select reboot system now.
This Hard Reset Solution By Hard Reset Key  
Press Power Key.

Your Smartphone Rebooted and OK

This Hard Reset Solution By Hard Reset Key 
This Hard Reset Solution By Hard Reset Key 
This Hard Reset Solution By Hard Reset Key