Nexus 7 compass problem

Some time back, I'd made a post about the compass with the nexus 7 which was found to be inaccurate at many points. The problem is now non-existent since the android 4.2.2 update. I did some more analysis and the problem is that there is a magnet to lower left corner which is used for Smart Covers (Is that appropriate, lawyers?). OK, I guess 'Covers which can turn your tablet off'. I myself am waiting to order one of these covers. So, if anyone is still facing the problem, you can check my previous post.