Wifi and Bluetooth won't turn on after unlocking Samsung Tab E T377A
I'm not an AT&T customer but I bought a Samsung Tab E T377A about a month ago thinking I could use it as a simple tablet. I was able to use the wifi and bluetooth connection without a sim card or unlocking the device. I unlocked it about a week ago to be able to use my sim card from my cellphone but the wifi and bluetooth won't work anymore. Is there anything I can do to unfreeze it?