Why my LG E400 screen goes off during calls?

All of a sudden the screen began to go turn off during calls. It comes back once the conversation is over (once other side has ended it, I have no control over conversation while it is active!). I recently gave the phone to a relative as backup phone, and she may have pressed some setting unintentionally, but I havent found any setting that would seem to be resposible for that. Ever since then I have reseted the phone to factory settings, updated the software but to no avail.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by emayert
2 hours ago
Last post by wbergstrom
2 hours ago
Last post by damon24
1 hour ago
Last post by xmitchell
4 hours ago
Last post by samir41
2 hours ago
Last post by peter.rosenbaum
4 hours ago
Last post by hgrady
49 minutes ago
Last post by tristin11
1 hour ago
Last post by mia70
3 hours ago
Last post by breitenberg.julianne
3 hours ago