@VIBE

Just to confirm, as I am not sure what "Sure" in your post means:

1. After copying content of extracted MCU firmware image into rootfs partition, I will get eg. N9 that will went from variant 418 to variant 001?
2. Because it is Chinese version, after that I will not be able to connect to EU GSM networks, therefore I need then to flash "CMT only" part from original Chinese MCU firmware to be able to connect EU GSM.
3. After such operations, my phone will be variant 001?