User Guide
Page 117
...Nokia in part of Nokia Mobile Phones' Europe & Africa Region unless a local warranty exists. This limited warranty shall not apply to deterioration due to Nokia or its authorized service company within thirty (30) days after the appearance of the defect within the warranty period; (iv) the Product serial number, the accessory date code... short-circuited or seals of the battery enclosure or cells were broken or show evidence of tampering or the battery...the defect was caused directly by the fact that require unlocking or locking of the Product ("Customer"). LIMITED MANUFACTURER'S WARRANTY...
...Nokia in part of Nokia Mobile Phones' Europe & Africa Region unless a local warranty exists. This limited warranty shall not apply to deterioration due to Nokia or its authorized service company within thirty (30) days after the appearance of the defect within the warranty period; (iv) the Product serial number, the accessory date code... short-circuited or seals of the battery enclosure or cells were broken or show evidence of tampering or the battery...the defect was caused directly by the fact that require unlocking or locking of the Product ("Customer"). LIMITED MANUFACTURER'S WARRANTY...