For me one was in warranty and one was out (I think), both were 310xt. I'm not sure how the out of warranty repair was negotiated because my GF organised it for me while I was away but I'm 99% sure it was free of charge for a refurbished one. As it happens I bought a 910 shortly after but the refurbished 310 is now on the GF's bike and hasn't had any issues.
For me one was in warranty and one was out (I think), both were 310xt. I'm not sure how the out of warranty repair was negotiated because my GF organised it for me while I was away but I'm 99% sure it was free of charge for a refurbished one. As it happens I bought a 910 shortly after but the refurbished 310 is now on the GF's bike and hasn't had any issues.