You have to flash modem img or the flashable modem through magisk.
https://xiaomi.eu/community/threads/the-device-does-not-see-the-sim-card-on-the-xiaomi-eu-firmware.71423/#post-717917
I am on last stable Miui 14 for redmi note 13 pro (garnet) and like to know if I should stay there for some more time or if hyper os is already good enough or even better to make the change?
I hope someone with garnet can help me out here