Display problem in Sony Xperia U

[abbasi143]

Dear Sir, 

I am facing a problem in my sony Xperia U (ST25i) mobile. I have switched on the mobile without sim then it's working normal and when i installed the sim in the mobile and then switched On, initially it shows home screen and then  internal storage preparing, after that suddenly display off. After that mobile was still on without screen and if i press the power button then it's restart. Please guide me how to solve that problem. Thanks

Regards,

Ashfaq Abbasi 

[Christofer]

Hi @abbasi143, I'm sorry to hear this.

Have you tried using another SIM in your device to see if this behaviour remains? My recommendation would be to try this.

Let me know how it turned out!