Jiophone ringtone not working,jiophone no sound.

Hello friends welcome you my channel , Agar aapke jiiphne mobile me ringtone nahi baj rahi hai to aap ye kuch simple se steps,,,,, follow karke apne mobile ko pehle jaise kar sakte ho bina koi data khoye,,,,jiophone volume not increase, jiophone ki volume nahi badh rahi hai.