Smile [GUIDE]FIX:Slow performance of grand after 4.2 update

Whats up guys.This is Nikhil Singh from xda developers and today I am going to guide you on how to increase performance of grand after 4.2.2 jelly bean update. I have noted that after 4.2 update my grand hangs regulalry on opening gallery or doing other stuff for sometime.(The performance from device is terrible)

So here you go
1.Switch off your device
2.Boot into recovery by pressing Power button+Home button+Volume up button
3.Navigate to wipe cache partition and press power button(on some devices it will show Error but dont worry)
4.Device will reboot automatically

Thats it now your galaxy grand is smooth and lag free test it by opening the gallery app
Some more tips are to turn off power saving mode

Click thanks button if it helped