To Chinese visitors, you can download the firmware from here instead:
LINK (Firmware only): https://mega.nz/#F!K09FVL4R!mlPJgET4JbtzRO9EwgYQhg
If you've installed latest Android O update, you may need a workaround to downgrade.
Tool DL and How to flash: https://forum.xda-developers.com/nok...dated-t3678487
Current available firmware list:
C1N-0430-0-00CN-B05: October 2017 Update with Android 7.1.1 Nougat.
@heineken78 for his work
@blackpanther0582 for his first Nokia firmware releases
local Nokia service point