please create a ticket at http://bitmain.zendesk.com  (top right)

or email a support request to support @ bitmain . zendesk . com

If support staffs are online, you may request to chat, too.

https://v2.zopim.com/widget/livechat.html?key=2ZaJsbRPVUUFCqOE8MmgXgbFFdNYxOBP

warranty is 90 days from purchase date. (Bitmaintech.com or Amazon seller "Bitmain")  If you purchased it from else where, please email the proof of purchase in the ticket.

you can try updating the firmware to the most recent January one but before you do that, please power off your S3+ and let it sit for 10-15 minutes and power it back on.  If the xx goes away.  Often time, a few X's on the ASIC status comes from teh firmware bugs.  But your hashing speed is low, too, so the problems could be on the hashing PCB.