Default Ativ S camera not working

Just got a brand new ativ s with a non-working rear camera. Details
OS version 8.0.10517.150
firmware: 2424.13.11.2
hardware 15.15.1.0
radio soft 2424.13.9.1
radio hard 0.0.0.800
bootloader 13.08.14.16
chip soc 1.5.32

3rd party apps don't work, hard reset did nothing. No mSD card inserted, with or no sim.

What should I do with it? Is there any ROM, firmware or other stuff to flash in order to make it work? Should I take it to warranty and get a new one, which will also probably stop working pretty soon? Should I get a full refund? Or should I wait for another update, maybe wp8.1 and hopefully this is a software bug, not a faulty hardware?