Last week Apple asked service providers in the US, Europe, Latin America and Asia-Pacific to repair iPod nano screens that had cranked – at no cost to that customer.

According to Apple Insider, the message reads: "The AppleCare Repair Center will also be processing such repairs as covered repairs. This means iPod nano owners with cracked displays should be able to contact AppleCare via telephone to arrange for their players to be serviced under warranty.”

In October Apple admitted that there were some issues leading to unacceptable scratching on a “small number of units”.

"Our figures show this issue has affected less than 1/10 of one per cent of the total iPod nano units that we've shipped. It is not a design issue," said Apple at the time.

Apple has been fixing these screens free of charge since it was notified of the problem, it seems it felt it was necessary to highlight the process to its partners.