Hello.. So a few days ago my Samsung S6 got a black screen out of nowhere and nothing would get it to turn on. I took it to a repair shop and they checked if it was the screen or battery and it was neither. After some looking, they said it could be this chip in the motherboard or something that I didn’t understand much as I’m not very informed in these tech related issues. Anyway, he said that it would cost about £125 to repair and I told him that I don’t want it fixed if it means it’ll have to be formatted. Both employees said it probably won’t be, but everything I’m reading online is saying that issues like that can’t be fixed without formatting the phone. Please advise.