You can try the current global modem.
https://xiaomi.eu/community/threads/xiaomi-eu-rom-problem-with-camera-in-redmi-note-14-pro-5g-amethyst-model-24115ra8eg.75617/post-747570
Your device is not supported on this forum (MediaTek SoC).
Try installing a stock ROM. https://xiaomi.eu/community/threads/how-to-install-stock-rom.74017/post-734380
Stock ROM: https://mirom.ezbox.idv.tw/en/phone/camellian/
You can try the current global modem. I have no idea how it will work. I have no way to test it.
https://www.mediafire.com/file/jbi6c90egde7e7u/amethyst_modem_OS2.0.3.0.VOPMIXM.zip/file
If you enter the command "adb devices", the device must be started and USB debugging must be enabled.
If you enter the command "fastboot devices", the device must be in fastboot mode.
You cannot install xiaomi.eu custom ROM using Miflash.
If installing ROM using Miflash works, it means you don't have a problem with fastboot drivers.
So installing xiaomi.eu ROM using fastboot method should also work for you...
Seriously?
Different android, different OS and lots of other variables.
https://xiaomi.eu/community/threads/hyperos-2-0-stable-release.74372/post-747479
If you don't understand the issue of custom ROM and are not interested in searching for information, it would probably make more sense for you to return to stock ROM. ;)