I have recently updated my Galaxy S3 GT I9300 unlocked in Pakistan to AOPK kitkat nightly 4.4.2. but its not so good. now i want to downgrade my S3 to previous 4.1.2 samsung official firmware. Can anyone pls help me to downgrade my phone Plz i want to go back to previous firmware.I have read downgrading methods but i cant found official firmware for S3 GT I9300. Plz tell me what to do or help me finding official 4.1.2 firmware. Thankss alott in advance.