Sabse pahle Display button ko press Karke Screen par SP laye.Iske baad aap beech Wala button jahaan set/Enter likha hua single press kare.SP Wala screen blink Karne lagega.jab ye Blink kar Rahe ho UP/Down ko dabakar barha ya ghata sakte hai.Fir punah Set/Enter ko dabaye.Agar blinking hoti rahegi to change confirm nahi Hoga.Atah UP/Down key se change Karne ke baad punah set/ enter ko dabana jaruri hai.Agar nahi hota hai to comment kare