Origineel bericht door: Rany ,
Is it a WiFi only model or cellular model? Did the owner notice anything failing before the device got bricked? Such as front cam failure? Random bootlooping? Freezing? Otherwise, possible suspects that are not the board would be ambient light sensors and possibly front cam. At board level, many component can cause this and history can help narrow it down. From Tristar to cellular circuit (if it is cellular) to NAND.