EU law demands a minimum of two years for guarantees? If bought in January 2015 he should have been able to demand a replacement for a faulty unit until January 2017?
Under EU rules you always have the right to a minimum 2-year guarantee at no cost.
This 2-year guarantee is your minimum right. National rules in your country may give you extra protection: however, any deviation from EU rules must always be in the consumer's best interest.
If goods you bought anywhere in the EU turn out to be faulty or do not look or work as advertised, the seller must repair or replace them free of charge or give you a price reduction or a full refund.
Apple seem to have form with this one though...