Just go on setting and on about phone I last after clicking about phone there is a option software information just click it on 5th place there is a option of build number just click it 7-8 times developer mode has been on 😊
Hatt be sab try kr liya you tube jitni sari video hai dekh ke sab try kr liya ghanta kuchh nhi ho rha ab to jo usb connect dikha rha hai ushi pe click krke this device pe click krke charg krta hu