hi, im using my phone galaxy a13 and then it just started lagging and a one black vertical line appears on the left side on my phone. updated my phone to a new software update and then after a while it disappeared but again my phone started glitching or lagging and then it appeared again. what should i do? is it software or a hardware issue?
If I were you I would take it to a repair shop. Or maybe you can find a guide on YouTube or something? I don't know. Hardware isn't my specialty, not even close to it.
