factory reset

[SUNEEL1427]

I forgot my factory reset pin in sony Xperia t2 ultra...how to recover it

[Jake-SonyXperia]

Hi SUNEEL1427,

Welcome to the community, 

You could try following the instructions in this thread.

Lock device instructions

let us know how you get on.

[Phy]

This is how 

http://talk.sonymobile.com/t5/FAQ/How-to-unlock-a-phone-w-o-reseting-reformating-the-phone/m-p/92729...