Sir meri pass along Sam j400f mobile aaya hai usme ringer ke noisy sound ke problem he ringer change karke bhi dekha same problem hai multimeter se check kerneper ringer ke tips per resistance kabhi 150 kabhi 200 kabhi 400-450 or kabhi kabhi gnd aani beep aati hai ya problem q aareahi hai or isko kaisi solve kare batao sir please plz plz...