yashsingh1/xdaforums huggingface dataset:
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
New MIUI Stable Firmware Release​

Version: V12.0.8.0.RJGEUXM

Android: 11.0

Region: EEA

Filename: fw_surya_miui_SURYAEEAGlobal_V12.0.8.0.RJGEUXM_5a1c94bd0b_11.0.zip

Filesize: 78.1 MB

MD5:

4ebb35585b468be32a511a143c07291f

Download: Here

Note: Older releases are available Here
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
New MIUI Stable Firmware Release​

Version: V12.0.1.0.RJGMIXM

Android: 11.0

Region: Global

Filename: fw_surya_miui_SURYAGlobal_V12.0.1.0.RJGMIXM_95126259ea_11.0.zip

Filesize: 78.1 MB

MD5:

607871e3154725437902635af6174d4a

Download: Here

Note: Older releases are available Here
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
New MIUI Stable Firmware Release​

Version: V12.0.1.0.RJGINXM

Android: 11.0

Region: India

Filename: fw_surya_miui_SURYAINGlobal_V12.0.1.0.RJGINXM_bf71232af2_11.0.zip

Filesize: 78.1 MB

MD5:

88736889681719ae8cb8c3a030dc21d0

Download: Here

Note: Older releases are available Here
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] m0han:
i had flashed the india fw from your post earlier, which was android 10.0. if i flash this latest india fw, which is android 11.0, can i continue flashing miui vendor (10.0) based custom roms?

also, can i simply flash any oss vendor based custom roms? would i still have to format data or would everything me ok?
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
No, don't mix Android versions of Firmware and Vendor.

About OSS ROMs, you check check the guide in general section, this thread is not for ROMs questions :)
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] just Nob:
I'm a little confused.

As far as I got it correctly from this post, it doesn't matter which firmware to flash to my X3 NFC (as long as I'm choosing a firmware's surya version), independent of the firmware originally working on my device. Is this correct?

But if so, where are the firmwares' differences? Are they all targeting the exactly identical hardware platform, but bringing region-dependent settings/features, or differ they because Xiaomi builds slightly different hardware variants for different regions, which then must be supported by different drivers (i.e. different firmwares)?
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
Actually it's not firmware differences but rather software (MIUI). The low level drivers are the same, they will work on your device despite the region of them. But, in the software and depending on hardware features, MIUI handle the differences and load the correct drivers and enable/disable features.
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] yshalsager:
New MIUI Stable Firmware Release​

Version: V12.5.1.0.RJGMIXM

Android: 11.0

Region: Global

Filename: fw_surya_miui_SURYAGlobal_V12.5.1.0.RJGMIXM_e3b8205e7f_11.0.zip

Filesize: 78.1 MB

MD5:

925f5366138b76f0e586124e5d4bc829

Download: Here

Note: Older releases are available Here
[Xiaomi Poco X3 NFC ROMs, Kernels, Recoveries, & Ot] sturges:
I hope EU version comes soon, last firmware update for Android 11 was on May