Motherboard issue

[MkV]

Im using sony Xperia Z1. It has been only 4 months and suddenly my phone stopped working and automatically getting switched off. When I submitted to the service centre they told me that there is an issue in the motherboard. Also there is a small crack on the back cover of my phone. Is there any connection between the crack and the motherboard. What's the solution for this problem

[Uliwooly]

@MkV

I'm sorry to hear that. Perhaps if you dropped the phone it affected the motherboard. Only your local Xperia Care support team can answer this question