yashsingh1/xdaforums huggingface dataset:
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] SunilSuni:
Rice is nothing but a Millet in Chinese..

Usually Xiaomi named their mobile as Millet in China and if you read about Xiaomi mobile certification in tenaa website then Xiaomi mobile name will appears as millet
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Bolumstar:
Is there any need to flash firmware while using a custom ROM as most things seems to work? I am on Anti 4 and don't want to mess about with things.

Can Someone please explain to me the advantages of flashing Firmware files on Android Pie Custom ROMs?

Which one to flash for Someone with Anti 4 but Custom ROM 9.0?

If I switch to Custom ROM 8+ can same firmware work or I have to flash another one?

Does it have any effect while switching back to MIUI ROM with Fastboot or TWRP recovery?

Thanks in advance for your replies...
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] htchd2sucks:
1) The need is only to fix some issue or/and if the ROM requires a minimum FW version

2)You need to see the FW upgrade releases so see some of the changes. Advantages are the bug fixes they are bringing, at fw level (not at rom level)

3) NON ARB version. I go for the stable ones, as the dev one are well, testing some things and might not be stable

4) Depends on rom requirement. Probably stable FW are ok on android 8/9.

5) If you go back to MIUI rom, I think you flash everything (the package containing fw, rom, bootloader, etc...). Anyway it has no effect, to the best of my knowledge.

You do flash the non arb fw from TWRP recovery, I did not understood the question here. If FW is too old, sometimes TWRP might not boot.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] WaseePK:
Is it safe to use latest MIUI 10.0.4 firmware on MIUI 9.6.4? I just wanna test. And i am already on ARB4 so which firmware should i use? non arb or arb?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] WaseePK:
anyone?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
It's safe
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] WaseePK:
I am already on ARB4 so should i flash non ARB firmware or ARB?

I am going to flash MIUI 10.0.4 firmware into a running MIUI 9.6.4 rom and thn flash back MIUI 9.6.4 firmware after the test.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Normal one (with arb)

ps: you don't need to flash FW if you're using MIUI, just update the rom itself.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] WaseePK:
I like MIUI 9.6.4 its really good so i want to keep it but there was a bug related to 3rd party apps video call quality in both MIUI 9 and 10 based on Oreo so i wanted to try latest firmware to see if it is fixed. I don't know much technical details but from what i heard camera blobs are in firmware?

I went down to MIUI 9.2.4 bypassing arb using pitchblack method to test if this issue existed in old nougat versions of MIUI but camera wasn't working for me at all in Nougat version of MIUI i guess thats because firmware was skipped during bypass and Nougat is unable to work with Orea firmware? i can't find any non arb firmware to flash from oil MIUI roms based on Nougat.

I tried almost every custom rom based on Oreo and Pie and this issue of low camera quality in 3rd party app video calls exist in all of them so i guess thats because they dont have access to camera blobs and only MIUI can fix it.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] gast12:
I do not recommend staying on old Android versions because of security issues.

Try the official Lineageos 15! With Magisk you can install a great MIUI AI Camera port (AOSP version) directly out of the magisk app repository (see downloads selection in the app). It features AI and storage of pictures on MicroSD, HDR+ pro and many more. I am absolutely happy with this combination.

Alternatively use Miui 10.x stable, new FW included: https://xiaomi.eu/community/threads/miui-10-0-10-1-stable-release.47170/

Just be careful not to downgrade Miui versions because of your ARB=4. Upgrade is no problem at all.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] WaseePK:
For me the issue is not MIUI Stock Camera app i am ok the result is pretty good the issue is the horrible camera result in video calling apps like Whatsapp, Skype, Facebook, IMO etc and i tried MIUI 10 and 9 and also LineageOS, PE and Nitrogen but this issue remains same. Can you test an indoor video call on any of these apps i mentioned and let me know if this works fine for you on the combination you mentioned? I will really appreciate it
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Bolumstar:
Can Flashing Latest Firmware fix the issue of Goodix fingerprints in Custom ROMS?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] soggypancakes:
So when I got my phone I made sure not to update MIUI so I would stay on ARB3 as soon as I unlocked the bootloader I moved to lineage and have had it ever since. I know im on ARB3 and it says my Vendor security patch level is from May 1, 2018. What file would I use to update my global version? It was my understanding that ARB is tied to the firmware are the versions in this thread modified? How do I install it would I just download the zip and install it through TWRP? Would it wipe anything?

Thanks
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] punitsnaik:
I am using the Pixel experience rom and if i flash the latest firmware will it be any helpful and can i do that? Also i Don't know the version of firmware that I'm currently using. I'm new to this, can someone help me with this?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
No

Flash latest global firmware (anti4) or latest non-arb (anti3) from twrp without wipe

Just use latest stable fw
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Egyptiandroid:
I've unlocked bootloader, and now I am on Pixel experience rom Pie 9, Can I flash this rom without bricking phone ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Cirra92:
This is not a ROM, this is firmware update (drivers for some hardware components, Bluetooh, modem, DSP etc).
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] otti17:
I'm on Miui 10.0.4.0 firmwareless with arb 3. And can I flash firmware non arb 10.0.4.0 because of updates for BT, modem or something? The file is about only 54Mb but without arb, am I'm right?

And for the future I'm flashing always firmwareless (1,6Gb) and afterwards the same firmware without arb (54Mb)? Then why there's no rom with firmware (drivers etc) included and without arb? Sorry for my dumbness:eek:
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Cirra92:
Well I don't know about the size of the files, but they are labeled clearly with ARB/non-ARB and those nkn-ARB ones should contain only 3 files (Bluetooth, DSP, modem). You can flash it.

For the second question, I guess that is the limit of automatic extraction scripts for firmwares, as it's not done by user.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] pazdir:
Actually, there is such a rom - xiaomi.eu is exactly this.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] mdzaibsk:
I dont know y but when i tried to flash 10.0.4 firmware which is latest as of now it showed me that flash successfull in twrp and when i tried to reboot and install a custom rom it showed there 9.5.11 what should i do ?? I tried everything and no success :crying:

Help Guys :confused:
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
This is build target fingerprint, there's no need to be worried.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] inspectah_deck:
Hallo,

I´m just installed LOS 15.1 on my new RN5 global version.

What stable FW should I flash now?

v9 or v10?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
V10 global stable
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] :
I had MIUI 10.0.0.4 stable

Installe Pixel Experience Pie 11/21

Now my screen has some issues (which were never there in miui ) now my question is can I flash firmware to fix this ?

And how can flash firmware over pie rom ?

Do I need to wipe everything ? ( one of the users from this thread mentioned that he flashes over the rom and reboot but he is on oreo rom and I'm on pie rom that's why I asked ....)

Thank you !
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] aenima73:
If you flashed MIUI 10.0.0.4, you already have that firmware as custom ROMs don't flash any firmware so you don't need to flash it again.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kingfisher213:
please can i get the exact firmware LINK for 10.0.0.4. am currently using masik 1.7. Redmi Note 5 china version. i keep checking the links but never find the firmware.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
https://sourceforge.net/projects/xi...V10.0.4.0.OEIMIFH_9aa5f799fe_8.1.zip/download
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kingfisher213:
Awesome. Thanks alot
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kireto00:
Plz assist me i dont know the difference between 2 things ....

Frimware with no arb ....

And frimwareless rom i know that mean deleated frimware partition but

1-which is the differnce between them ?

2-And which to flash to avoid hard brick anyone or there is specific ?

Thanks for responds
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Non-arb is firmware

Firmware-less is rom

There's no chance for hardbrick unless you flash older miui rom or firmware than anti number you have.

To make it simpler, don't flash any miui rom older than August.

If you are using my files. There'll be zero chance to get hardbrick.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kireto00:
1-Non arb frimware u mean that i can replace it with official zip frimware partition and then flash it this is its apportunity ?

2-But what difference between if i flashed frimwareless and if i replaced frimware folder in offical zip ?

Thanks for ur patience and response
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
1- No, you can't replace it. Basically non-arb (firmware without arb parts) are 3 partitions included in the zip file.

2- Again, you don't need for replacing anything, ready-made files are there. If you replaced, you'll need to edit the updater-script as well, why are you doing it manually? I already automated the whole job.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kireto00:
You mean if i want to go back only flashing frimwareless file or frimware with no arb flash which one ?

---------- Post added at 05:43 PM ---------- Previous post was at 05:38 PM ----------

Y mean that i must flashing frimwareless then after that flashing frimware with no arb after that right ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
1- yes.

2- no, use fw if you're using custom roms, fw-less if you want to flash miui.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kireto00:
The lasts question pls thanks for ur patience ...

What is the use of frimware without arb ....and when i must flash it ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Updating to latest fw and still on arb 3
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Kireto00:
1-So i am on arb 4 so i must no touched with frimware with no arb ?

2- i will only using fw less right ?

3- you right to notes that i will be stick to it that mean if i am back to 9..6.4 fwless from 10.0.4 this mean that i cant flash 10.0.5 ( example) official one ? If not what u mean with stick ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
If you're arb 4 flash normal fw and roms.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] lifes_alpha_tester:
I unlocked my bootloader after changing to a beta MIUI ROM, and I have arb4. Now I'm on pixel-experience extended, which works fine btw. But recently I started noticing some signal drops and the fingerprint camera shutter no longer works. So some guys suggested me to upgrade my firmware. Here I'm. But I'm confused as to which file to flash. I'm still on pixel-experience pie, twrp, arb4
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] gast12:
just read. go to first thread download firmware under stable roms firmware, I. e. the first link below it says sourcforge

"Names will be in the following manner:

* fw_miui_WHYRED_*.zip is Xiaomi Redmi Note 5 (whyred) China firmware

* fw_miui_WHYREDGlobal_*.zip is Xiaomi Redmi Note 5 Pro (whyred) Global firmware"

backup.

flash firmware zip via twrp.

clear cache.

reboot.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] KanedNUnable:
Hi there, I have brand new Redmi note 5 China version. Installed latest global dev ROM as soon as I got device, then installed latest global stable ROM 10.0.0.4, that's the current ROM.

Have never installed any custom ROM yet, but now I want to install official lineage os 15.1. I'm confused as to whether I need to install firmware file first or not though, and if so which one? Can someone please advise?? TIA!
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Ashutosh:
As you've said already that you're on latest global stable, so there's nothing you need to do just go ahead and flash any custom ROM you want
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
MIUI 10 8.12.6 Global/China Beta ROM Firmware​

Telegram Channels: https://t.me/XiaomiFirmwareUpdater | https://t.me/MIUIUpdatesTracker

You can get updates always from Sourceforge, Androidfilehost or Github :D :

Sourceforge:

Developer ROMs Firmware

Androidfilehost: (Mirror)

Developer ROMs Firmware

Github Releases: (Mirror) [choose weeekly latest tag]

Developer ROMs Firmware

Firmware without ARB​

For whyred, nitrogen, sakura and wayne

Sourceforge:

Developer ROMs Firmware

Firmware-less ROMs​

For whyred, nitrogen, sakura and wayne

Androidfilehost: (Mirror)

Developer Firmware-less ROMs
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] v3n0m3x:
can i flash it on costum rom android P - FW without arb ?

or this fw just for MIUI based rom ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] KanedNUnable:
Sweet thanks. I got impatient and tried flashing a couple of different firmware files first before lineage and gapps, neither worked. So I restored to stock then tried again with no firmware file and it worked perfectly. All looks good now, cheers.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Gromit1996:
Pardon my Noobie-ness, but...

I have a Whyred that I purchased in July. Since then I have unlocked the bootloader, installed TWRP, and flashed many different ROMs. I have not updated the firmware at all, other than to update from MIUI 9 to MIUI 10 beta in August.

Should I upgrade the firmware, and will it delete everything or just a particular partition with that info on it?

Thanks for your kind replies.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Update to latest stable global fw.

It won't remove anything.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Announcing Xiaomi Firmware Updater Official Website!​

After a long time of waiting, I proudly announce that Xiaomi Firmware Updater official website is published today :D

You can check it at https://xiaomifirmwareupdater.github.io

There you can find a list for all supported devices as well as a list of all available builds for every single device.

Currently, we are having trouble with GitHub API. You may be not able to load the list after some refresh. Till we move all stuff to somewhere else, we have to stand with these.

Also, please report bugs at GitHub issues tracker instead of reporting here.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
MIUI 10 8.12.13 Global/China Beta ROM Firmware​

Telegram Channels: https://t.me/XiaomiFirmwareUpdater | https://t.me/MIUIUpdatesTracker

You can get updates always from Sourceforge, Androidfilehost or Github :D :

Sourceforge:

Developer ROMs Firmware

Github Releases:

Developer ROMs Firmware

Androidfilehost: (Mirror)

Developer ROMs Firmware

Firmware without ARB​

For whyred, nitrogen, sakura and wayne

Sourceforge:

Developer ROMs Firmware

Firmware-less ROMs​

For whyred, nitrogen, sakura and wayne

Androidfilehost: (Mirror)

Developer Firmware-less ROMs

Donation:

A donation was never necessary, but It's making life easier for me and guarantees paying server costs, as you know, both of my XiaomiFirmwareUpdater and MIUIUpdatesTracker scripts are automated, running on a Linux server. If you want these projects to continue and provide the best services to Xiaomi users, you can help me by buying me a Pizza here: https://paypal.me/yshalsager
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
MIUI 10 8.12.20 Global/China Beta ROM Firmware​

Telegram Channels: https://t.me/XiaomiFirmwareUpdater | https://t.me/MIUIUpdatesTracker

Changes:

- In order to provide better service, faster mirrors, and stable downloads, all files are moved now to OSDN, we'll use it as our Main download platform.

- There'll be no more uploads on AFH, and SF will be used as a mirror which updated frequently.

- The site loading issue will be fixed in two days.

Download Links are available on our site :D You can download form OSDN or GitHub.

Downloads:

Developer ROMs Firmware

Firmware without ARB​

For whyred, nitrogen, sakura and wayne

OSDN:

Developer ROMs Firmware

Firmware-less ROMs​

For whyred, nitrogen, sakura and wayne

OSDN:

Developer Firmware-less ROMs

Donation:

A donation was never necessary, but It's making life easier for me and guarantees paying server costs, as you know, both of my XiaomiFirmwareUpdater and MIUIUpdatesTracker scripts are automated, running on a Linux server. If you want these projects to continue and provide the best services to Xiaomi users, you can help me by buying me a Pizza here: https://paypal.me/yshalsager
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] riz94:
Confused !

Can i install the latest global firmware on my note 5 ai ... running Havoc OS - ARB 4 - ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] alreadyregistered:
Always can. Depending what you need.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] u_know_me:
I am sorry if my question is already asked.

My device is RN5 pro/global and MIUI 9.5.17.0 (ARB 3), it is safe to flash fw-less 8.12.13 (which mean my phone still on ARB3) ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] timberwolf60:
deleted
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] SunilSuni:
Yes your phone will be on ARB3 as long as you are flashing non arb ROM
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] u_know_me:
You mean fw non-arb (only driver) or firmware-less?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] SunilSuni:
Firmware less ROM package (complete ROM package)
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] u_know_me:
let say, the phone is on miui 9.5.17.0 arb3, then I flash custom rom, and when I found unsatisfied with custom ROM, I want to back to miui rom. it is ok to flash firmware-less rom? or I should go to miui factory rom?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] srohit22:
Hi i was on arb4 then i unlocked bootloader and flash aosip pie rom. Now i want to update firmware with latest dev rom firmware. I am confused which one firmware to flash to avoid any kinda hard bricking..

with arb or non arb ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Oxofrmbl:
i would like to know which firmware to flash for Whyred Global (not indian/not Pro) version?

this: fw_whyred_miui_HMNote5_8.12.20_aa5610312c_8.1.zip or

this: fw_whyred_miui_HMNote5HMNote5ProGlobal_8.12.20_aee03050cd_8.1
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] gast12:
see OP.

"Note:

Names will be in the following manner:

* fw_miui_WHYRED_*.zip is Xiaomi Redmi Note 5 (whyred) China firmware

* fw_miui_WHYREDGlobal_*.zip is Xiaomi Redmi Note 5 Pro (whyred) Global firmware

"
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] riz94:
?

I have latest stable global V10.0.6.0 (ARB-4) firmware installed can i install latest developer V8.12.20 ?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
Yes
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] ManDone.vRs:
Any rom arb4 you can install .
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] yshalsager:
MIUI 10 8.12.27 Global/China Beta ROM Firmware​

Telegram Channels: https://t.me/XiaomiFirmwareUpdater | https://t.me/MIUIUpdatesTracker

Download Links are available on our site :D You can download form OSDN or GitHub.

Downloads:

Developer ROMs Firmware

Firmware without ARB​

For whyred, nitrogen, sakura and wayne

OSDN:

Developer ROMs Firmware

Firmware-less ROMs​

For whyred, nitrogen, sakura and wayne

OSDN:

Developer Firmware-less ROMs

Donation:

A donation was never necessary, but It's making life easier for me and guarantees paying server costs, as you know, both of my XiaomiFirmwareUpdater and MIUIUpdatesTracker scripts are automated, running on a Linux server. If you want these projects to continue and provide the best services to Xiaomi users, you can help me by buying me a Pizza here: https://paypal.me/yshalsager
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Domenico F:
any link for last stable miui rom?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] bleagues:
My Note 5 pro is on ARB 3, I am running pixel experience.

I want to maintain my ARB 3 and update to latest stable 10.2.1.0. Do I need to flash the 'non-arb' version or the one that doesn't state that in its name?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] xdarkstar:
Non arb
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] A R:
what is Firmware without ARB ? and i am on anti roll back version 3 i have not flashed any updates after miui v9.5.17 always use this rom to go back to miui or custom roms . so , if i flash ( fw-non-arb_whyred_miui_HMNote5HMNote5ProGlobal_V10.0.6.0.OEIMIFH_3043c65cbb_8.1 ) will my anti roll back version will increase or just my modem and blue-tooth values will be updated to latest ??!!
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] KRisXD:
Only firmware will be updated, ARB not. As long you use fw-non-arb...
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] bleagues:
Thank you
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] angelitto2017:
Hello, what's the use of this ?, I have the ROM Pixel Experience installed but what led to this? the truth, I do not understand anything. I had MIU10 and then I deleted everything and put the ROM Pixel Experience like that without further ado.-
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] KRisXD:
Simplifying, on PC example:

BIOS = Firmware

Windows = Custom ROM

Original MIUI = Bios and Windows.

So if you are using original MIUI you don't need to do anything, you get updates for Firmware include ARB and ROM.

But if you're using Custom ROM you get only ROM update.

So if you want update firmware of your phone you use firmware from this thread, fw-non-arb is firmware without ARB.

Summarizing:

Use fw-non-arb to keep your ARB (you bought phone with ARB 3, you stay with ARB 3) and phone firmware will be updated to newest.

And use Custom ROM you want.
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Tonyy32:
So what firmware custom roms use (Lineage for example)?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] angelitto2017:
How do I know when I have to update the firmware ?, I have redmi note 5 global (pro) and I had MIUI 10 and now I have moved to Pixel Experience .. is it necessary to do these steps ?, what happens if I do not do these steps?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] MarcoDroidWorld:
I use Syberia OS Android 9.

Which firmware I have to download?
[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] ralaud:
Hi, thanks for your explanation. But I have few more questions. Would be nice if you could answer them.

I have ARB 4, so do I need to download firmware with ARB or without?

And do I can be sure, whether the latest firmware with ARB does not update to a newer ARB, for example if ARB 5 will be released.