hi mere paas sandisk ka 2 gb memory card hai usme data pada hai me jab bhi us data delete karta hu to delete ho jata par thodi deir baad phir wapis aa jata hai or maine format bhi karke dekha hai chip formate bhi nhin ho rahi hai msg show ho raha hai window was unable to complete the format agar aap me se kisi ke paas iss problem ka solution ho to plz reply kijyega