Kyocera Echo

my kyrocero echo phone is not active but am able to use the wi-fi and camera. My question is it had an automatic update while on the web that the phone needed to be restarted for it to take effect well... when it powered back on nothing. Only black screen with KYROCERA on one of the screens. Phone wont do . Tried taking battery out for a while even called customer service they couldnt help. Please someone help im lost without my slots.