There’s the occasional comment in the marketplace and in the help topics about a phone having a new warranty when it has been replacement. I wasn’t sure whether this is true, and it appears to be difficult to find reliable information on this topic. I’m posting my findings here, in case this is useful for anybody. These are my own interpretations, I can be wrong. This is not legal advice. Neither am I in any way representing Fairphone.
EU information suggests warranty differs per country.
For example the UK:
Is the repaired/replaced product covered by a new guarantee?
No. The guarantee period is only extended by the time necessary for repair or replacement (subject to terms and conditions of the commercial guarantee).
And similarly, The Netherlands:
Is the repaired/replaced product covered by a new guarantee?
No. The guarantee period is only extended by the time necessary for repair or replacement.
Whereas in Germany:
Is the repaired/replaced product covered by a new guarantee?
The law does not say, but in general, after a replacement, the consumer can claim legal guarantee rights for 2 years. In the case of a repair, the legal guarantee is only extended with regard to the repaired or exchanged parts.
For other countries, see the your europe page on Guarantees and returns, click ‘Guarantees for faulty goods’, scroll down and click ‘choose country’. Note that the page’s language can be changed at the top right of the page, above the search bar.
Which country's law applies?
In most countries the trader is responsible for putting things right. This does not apply if the trader only acts as an intermediary. Check the terms and conditions of sale. If you buy from a local reseller probably your local laws apply, unless they’re acting as an intermediary.
Many people will have bought from the Fairphone webshop. The Fairphone Warranty is quite clear in that consumer law relevant to your country applies (though I’m not sure whether that is billing address or delivery address):
Throughout the EU, warranties are covered by Directive 1999/44/EC on certain aspects of the sale of consumer goods and associated guarantees. This European Union Directive provides harmonised standards of your minimum rights when the good delivered to you are not in conformity to the sales contract. Having said that, since national consumer protection laws vary from one European Union country to another, it may be so that the national law applicable to you provide extra consumer protection rights.
The Fairphone 2 Warranty will not restrict, limit or otherwise affect the rights of you have under such national laws or the EU Directive.