About 8 months ago my son bought Xperia Ray model ST18i. He upgraded it to ICS as soon as it became available on Sony's site and was happy until yesterday. His phone started switching off automatically when left untouched for some time. It wouldn't switch on until battery was removed & reinserted. We googled for hours to find a solution but nothing worked including Reset to factory settings etc. This morning he reverted back to GB using flash tool. It didn't help and problem still remained. Now it is refusing to find any WiFi in the area. It keeps on scanning but cannot find any AP. 
Can any kind soul help and tell us why it is switching off or why it can't find any WiFi.
Kind Regards
Can any kind soul help and tell us why it is switching off or why it can't find any WiFi.
Kind Regards
