I have been told that my 4G ISP, Telia DK supports ipv6, as well as my Huawei B593 Hw Ver B, firmware V100R001C07SP102 I'm supposed to to Settings -> internet -> PDP Type -> ipv6/ipv4, but there is no PDP type settings, so I think I need a newer firmware, but I have failed to find one. Are anybody using native IPv6 on a B593?