25-10-2013 08:23 PM
28-10-2013 01:07 PM
Before sendiong the handset off, you might want to try wiping the area of the SIM contacts with a dry cloth in case there's any dirt or dust in the way. Whilst they're not all reachable, you might catch the edges of anything affecting the hidden ones.
If that doesn't help, you can see how to arrange a warranty repair here.
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