Ok, so my wifi sometimes doesnt connect, however, as soon as i disconnect my back cover for some weird reason i get like one bar of connect which is normal and when i hold my finger on the gold thing i get fully working wifi but when i have my back cover one it sometimes doesnt show no wifi ssid's or sometimes it doesnt connect at all and sometimes it does connect and i have full signal but there is no internet passing through, would you say something is wrong with my back cover and i should buy a new one?