<prompt> Translate the following text to EnglishHata hivyo, kumbuka kwamba mara nyingi dhamana ni halali nchini Japani tu, kwa hiyo tafadhali tafuta kwa mtengenezaji kwa maelezo ya kuboresha kwa chanjo ya ulimwenguni pote.  <response>: Note, though, that warranties are often valid in Japan only, so check with the manufacturer for details of upgrading to worldwide coverage. 