Wifi connection problem and unfortunate restarts

Hi Amin Rehmatullah,

Thanks for using Apple Support Communities. Based on what you stated, it sounds like the iPhone is having trouble connecting to WiFi networks and is also restarting. I would recommend that you read these articles, they may be helpful in troubleshooting your issue.

If your iOS device restarts, displays the Apple logo, or powers off while you're using it - Apple Support

If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support

Cheers,

Mario