My Nokia 3110c restarts frequently when used with a supported MMC card.But without memory card it works fine. Is there a problem of virus in a memory card? Should I upgrade my phone software? Please advice.
no upgrade it looks like the phone's hardware goes in electrical protection mode.
Either the slot is broker or the MMC card is not perfect. You should, if you can, try different working MMC cards. If the phone keeps rebooting the card slot is gone.
Hope this helped. Have a nice day!