Katkıda bulunduğum Kılavuzlar
"black horizontal lines in display" için yanıtIt is probably a hardware issue with the LCD screen. I don't know of any options other than a replacement.
"Why am I only getting sound from the headphone jack?" için yanıtIf this is happening repeatedly, there may be a problem inside the headphone jack and you might need to replace it. There's a guide for that here.