yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] datasource:
I don't have that behaviour here. I don't remember what I did but I think i messed with the sound settings
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Klaus Meier:
I can't use the torch. After installing the rom I can activate the torch. But after restoring my google account and configuring the devices, the torch button in the quick settings was disabled. And I can't use a camera, wheter the Gcam nore the Lineage cam.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Distky:
Try clean flash again, I didn't face that issue after clean flash the latest build and am using latest firmware
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Klaus Meier:
It was a clean installation.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] GrantWardo:
After based on stock P and require at least V10.0.3.0 firmware. It have problem with VoLTE.

If you making call with VoLTE then it will not recognize call status, will alway show "calling" and no call duration present (which making call not fully function such as call conference is not working, out going call still make sound when receiver connected and if you called automated call system that require you to press number after call connected it won't work)

One more thing is on/ off VoLTE is not functional no matter you turn it on or off it will use VoLTE right after make call.

Downgrade to 8.1 November firmware and above issues fixed but Fingerprint not functional. :confused::confused:
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] lijin1:
Battery life during my work week on this ROM is mind-bogglingly crazy. Loving every bit of this. Good job Flex :)
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] livemordor:
Encryption issues

Phone manages to encrypt successful (usuing cosmic TWRP to format data partition and release 4k blocks). But after boot and appearing enter password in shortly reboots to recovery. I have pattern as lock option set and if I quickly draw it, phone boots up to system.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] henk_j:
Why can firmware be installed trough twrp but not be incorporated into a rom right away?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Arief Darmawan:
It's bad
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] 5i1v3rStorm:
It probably could.

However, since that can also break things I would not want dev's to do it. I don't expect them to give a damn about what I personally want but the risk of destroying someone's EFS or sth. is probably the reason why they don't do it. Might just let the users take the risk.

Went through a hell of flashing to get my Band 20 back. It was great :)
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] rostifaner:
[MENTION=5120185]flex1911[/MENTION]

On latest build with WFD implement I get garbled image on my second screen( SmartTV ). Any fix for this?

BTW I compiled own build with latest LOS (not merged yet changes "pie-qcom-wfd" topic) and your sources and see the same issues.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] flex1911:
Not sure, wfd is still WIP so it's not guaranteed to work 100%, hence it is not merged yet.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] henk_j:
Where do I find a zip file with the latest firmware so I can dirty flash it and then install the latest lineage 16 over it? Searched found one but no December firmware there or is it only doable with the latest Xiaomi rom?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Xaviers101:
https://r.tapatalk.com/shareLink?ur...share_tid=3777901&share_fid=3793&share_type=t

[TWRP][Fastboot] Updated Bootloader/Modem for all ROMs

Edit: found out that it has been removed from this thread.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] txenglan:
Just upgraded from official 15.1. Everything seems fine so far. Thanks for your outstanding work on this ROM Flex.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hpstg:
Hello, thank you for your work!

One more question guys:

I'm coming from full stock rom. My plan is to use the Google Camera in OpenGapps. Does it work properly without root? Does it recognize all the cameras and has stuff like portrait mode?

Also, dois the phone finally support aptX again? Xiaomi enabled it and then disabled it again.

Thanks
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] shnapsx:
[MENTION=5120185]flex1911[/MENTION], reporting: clean March 23 install, no internet. All apns enabled, both LTE and WCDMA enabled. Network analyzer shows that the network can't be registered.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Shaunlia22:
You lost your imei i think
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] shnapsx:
Maybe. But the internet works with stock rom. Flashed it right after los.

Just checked IMEI and efs. Imeis are correct and efs isn't missing. Guess it is a problem in IMS registration.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] adnbwta:
https://substratum.review/c/SubstratumResources/platform_frameworks_base/+/14

I know this rom is official now, but can you merge this?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
Since when lineageOs support substratum?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Userbaban:
i am having a problem with Volte .. it's not working .. otherwise, everything is just fine .. please help me !!
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] adnbwta:
First, there's always a first time. Second, I'm just asking. Lastly, in los 15, the maintainer will make unofficial build with lot of things that can't be found in official build once in a while including substratum support, but oh, I guess u already knew it. :good:
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hpstg:
One more question guys:

I'm coming from full stock rom. My plan is to use the Google Camera in OpenGapps. Does it work properly without root? Does it recognize all the cameras and has stuff like portrait mode?

Also, does the phone finally support aptX again? Xiaomi enabled it and then disabled it again.

These are the only two questions stopping me from using it
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] k4tfish:
I also noticed that VoLTE doesnt work. It worked well on 15.1.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] vvenancio:
noob time.

Is it normal for the Xiaomi animation still show up before the Lineage boot animation?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] mitux:
Yes. It is splash screen. It won't change until you flash a new splash.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Ahmed Kassem:
To solve volte issues you may do this at your own risk:

1. Backup efs/persist partitions

2. Flash December firmware

3. Flash January firmware

4. Dirty flash the rom again

You should be able to use volte now, the problem occurs because you jumped from November firmware to February update (present in lineage). Many people reported that volte doesn't work if u skipped December firmware.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Xharos:
I'm having trouble with 5 GHz hotspot. 2.4 GHz works fine, but creating a 5 GHz hotspot only works like 10% of the time. Most of the time the phone says its created, but the other devices don't actually see it. Anyone getting the same problem?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Jt380p:
I have no clue what are you saying..:confused:
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] frojnd:
Haven't tried the bluetooth but I did it with headphones. Calls or audio in general just "clicking" sound. For each call/notification... Is there a quick workaround? I did dirty flash as per instructions. And then cleaned cache/dalvik.

Also big thanx to the developers. Keep up the great work!!!!

[MENTION=5120185]flex1911[/MENTION] Here is sound_error.logcat or clickingsound logcat. Look for PID 472 Nothing suspecious I found... except it's flooding the logcat - about 650 lines per second while the issue is happening. Maybe and Invalid profile no (PID 503) https://gist.github.com/frojnd/c42f2e4fbb6e35c6349461140c2771a7
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hpstg:
Does the Google Camera from the OpenGapps pack, work properly and utilize all the cameras of the phone (tele, normal, front)

Does the ROM have support for aptX and LDAC for Bluetooth devices?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Topper_H:
Flashed this ROM a couple of days ago and works almost perfectly for me.

The only issue I have, and seems not to be related to this ROM but probably a Pie problem is that I cannot disable in-band ringtone when my bluetooth headset is connected.

In-band ringtone makes sense if your device is connected to a loud speaker, like a car bluetooth, but for a regular headset, that is not always in my ear, this prevents me from hearing my incoming calls, because the phone doesn't ring.

Oreo had a developer option to remove this feature, but Pie doesn't. Is there a way I can workaround this issue?

https://www.xda-developers.com/android-pie-bluetooth-in-band-ringtones-default/
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] murtaza1326:
unofficial way only and not possible for officials
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Meme :D:
What is this app called "Android Setup"?

Why it uses so much RAM? Is that something important?

When i disable notifications for that app, app disappears.

Running latest version of Lineage OS
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] frojnd:
Can someone paste build.prop? Allthough my audio probably isn't related to build.prop sinve I wiped /system as per instructions?

I did have viper4android installed and now is gone after upgrading from official 15.1 to official 16.0

Any ideas for my audio issues?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] cheffy11:
Have you done a clean install to see if there was anything messed up from updating 15.1-16?

---------- Post added at 05:21 PM ---------- Previous post was at 05:20 PM ----------

Just disable the app
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] flex1911:
microg variant, I assume? That doesn't ship any kind of firmware so you have to update it manually.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
I know that some people just don't read lineageOs web stuff. Comes here and just seek anything lol
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hpstg:
If we flash this Rom, how easy is it to go back to stock?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
Lol.I know already enough. Just please read what lineageOs team support. This ain't any other kang project that gonna cherry pick anything without testing Google blocked it for a reason
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] mitux:
It is very easy. Just download latest stock rom and flash it via Mi Flash
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Scuppa:
Bootloop after OTA update

I'm getting a bootloop if I try to update via OTA from build 23.03.19 (which I originally flashed through TWRP upgrading from 15.1) to 24. or 25.03.19. Any idea what might be causing this? This didn't happen in version 15.1. Device is not encrypted and I'm using Magisk 18.1.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] frojnd:
Yes you are right. MicroG variant. When you say I have to update it manually you mean LineageOS or firmware? If firmware can you suggest me which one is best for tissot and LineageOS 16.0? I guess I'm asking if firmware can be extracted and flashed manually without any specific ROM. If not, do you think it would work I dirty flash vanila LineageOS 16.0 on top of microg-LineageOS 16.0 without wiping data? And then after installing LineageOS 16.0 also install microg-LineageOS 16.0 again dirty without wiping data? :)

Thank you.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Zijj:
Since I was the one with the same problem, I used the latest available stock firmware, then flashed official lineage and then the microg lineage. This worked, but I assume just wiping system, flashing original lineage and then flashing microg lineage should work too without losing data.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hubik_1:
I'm getting also bootloop after OTA from build 21.03.19. Also the same way: flashed through TWRP upgrading from 15.1

Data, Cache, System was previously wiped
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] hpstg:
[MENTION=5120185]flex1911[/MENTION]

First of all, thanks for the amazing work with the rom, it's very much appreciated!

I some questions :

Does this Rom support aptX and LDAC?

Is it correct that we cannot replace the stock dialer and the stock keyboard, because it will cause issues with dialing emergency numbers and entering a pin on boot?

Finally, although I understand that's not your issue, it works be nice to have an answer from someone who actually knows:

Will the Google Camera from OpenGapps work properly with our phone and this Rom? Will portrait, auto focus and tele work, or we need another camera for this?

Thanks!
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] flex1911:
aptX? Definitely no. LDAC? Not sure, maybe.

OpenGapps' gcam isn't going to work properly with all the features like portrait mode, for that you need a modded one.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] frojnd:
I wiped everythig except /sdcard

I installed official LOS 16.0

I didn't setup any encryption. I rebooted to LOS 16.0

I rebooted to bootloader, booted flex's recovery.img Wiped data, system, dalvik, cache, without rebooting sideloaded microG-LOS 16.0 I keep getting boot loops.

I repeated 3 times. LOS 16.0 works flawlessly, but I'm unable to isntall microG LOS 16.0 :D What?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
Does lineageOs team supports ports? I guess your team works with in-house built snap one..
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] flex1911:
What kind of a question is that?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
I have 6 devices and all of them are on lineageOs. Including mi A1. Across all devices lineageOs team supports and ships snap camera that you guys ship with stock builds of your ROMs. I was asking that does lineageOs entertain questions regarding ports and stuff because as I goes by lineageOs devs support only provided for snap cam I.e that you ship with ROM. As few people bring issues like gcam stuff is not working, instead of asking in the respective gcam port thread they ask it here. My question was clear that do you guys also entertain logs for any specific gcam ports and make changes to the git in lineageOs specific code?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] alexx1223:
Hello,

I just switched from Oreo stock to LOS16 2 days ago. Yesterday I decided to apply the 25 march nightly. Today after a full night of charge my phone had only gone from 25% to 51% instead of 100% as the night before.

When using an app as ampere I can see that I am only charging at a rate between 40 ma to 100 ma. I tried rebooting a few times and every now and then I managed to have the phone charge at a normal rate (between 1.5 and 2A). But this is very random and difficult to reproduce, and just unplugging and replugging the USB cable makes it go back to the very slow rate.

Has anyone had the same problem with the latest nightly or with LOS16? Do you know about any solution?

Thx
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Klaus Meier:
Do you have twrp installed? You must boot twrp and don't install twrp after you have installed LOS.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Frep:
No substratum support at all? I mean: could I use it even if there is no official support?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Scuppa:
I tried to install TWRP once some time ago when I first switched to LOS but realized it's not permanent, anyway. When I recently upgraded to LOS 16.0 I did it like in the description: boot to temporary TWRP via fastboot and no TWRP installation afterwards.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Klaus Meier:
Yesterday I tried my first OTA with Gapps and Magisk, no problem.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] frojnd:
Hi there. I successfully isntalled microG lineageOS 16.0 How I did it:

Obviously I wiped everything allthough I think I didn't have to...

Installed official LOS 16.0 BUT important part is I installed the build that is the same or older than microG lineageOS 16.0

After successfully booted in official LOS 16.0 I encrypted the phone following this guide

Then I dirty flashed microG LOS 16.0 or should I say, migrated to microG following this guide: https://lineage.microg.org/ basically you install microG keys and flash that and after that you flash microG LOS 16.0.

Thank you all!
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] nextheart:
Download link for December firmware, please. Thank you.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Ahmed Kassem:
https://drive.google.com/file/d/1q44nUtTt3h9jRjKxW80C3I5VfWLxcfjC
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] nextheart:
Thanks a lot. After January firmware, February & March firmware (from here:https://xdaforums.com/mi-a1/themes/twrp-baseband-modem-april-stock-rom-t3777901) should be flashed or not.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Ahmed Kassem:
Rom ships with February so after January just flash the rom
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] nararendra:
Clean flashed after using unofficial 16.0 ROM works perfect :)
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Distky:
Woah finally found out how to encrypt the phone, thx so much for the link
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] HidekiRyuga:
I don't use ampere, I think it changes the way my battery behave.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] cheffy11:
Is this an assumption or do you have evidence?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] HidekiRyuga:
Okay when I install ampere and charge my device, example my battery is 56% and when I uninstalled the app unplug from the wall socket it became 94%, just my experience not sure if happens to you.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] cheffy11:
My personal opinion would be that ampere is showing your true battery level.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] coremania:
I'm looking for a working clock widget weather provider for los 16. Is something available ? Or will it be compiled in the near future ?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] cheffy11:
cLock is included in rom.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] coremania:
Yes, I know and I need a working weather provider for it.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] autorage:
Fresh clean install did the trick, painful but effective:victory:

I was so sure everything was alright as the migration installs performance was great so I avoided the obvious.

Magisk is not the problem, it survives, gapps also.

Thank you for the support of this phone.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] cheffy11:
Try this thread.

https://xdaforums.com/lineage/help/how-to-add-weather-provider-los-15-t3783141/page6
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] coremania:
Thanks for helping, but it shows me 403 forbidden

Edit: i searched manually and found it, thanks.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] albsat:
Can someone build a version similar to the unofficial one so that we can install via twrp (coming from another rom)? That would be really helpful.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] FcoDaniel:
Hi everyone, when I try to update, the app updater download the update, but I try to install this crash... I try update with other update day and clean updater app but nothing.. continues crashing..
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] kopitalk:
Oh no, the nightly update thingy makes me a flashaholic again!!
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] notsuper:
Can someone show how to install this rom 1by1?

Clean flash
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Bastaerd:
See the OP
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] FieldsMA:
Could you share the link please?
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] ondy182:
May I ask you if there's a Dirac support in the latest nightly builds? Thank you so much for your amazing work!
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] greenlabel:
Guys, just a question. Has this rom call reconding option (usually is in dialer)? thanks in advance
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Distky:
Yes, as long as you are using stock dialer
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] notsuper:
How to install twrp
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] greenlabel:
Thanks a lot. So not problems with pie. Great, really great.

Inviato dal mio G8441 utilizzando Tapatalk
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Mendibil:
Is it possible to install from Stock without losing encryption?

I'm reading s lot of people that can't encrypt it's device after installing LOS 16.

Thanks in advance for the answers.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] coremania:
No, works fine. People complaining because they formated the data partition, don't do this only wipe.

---------- Post added at 15:54 ---------- Previous post was at 15:47 ----------

The link above is working. I guess it was an issue with the los browser. With chrome it's working fine.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] tacocowboy:
I will leave here the steps I followed to have a perfectly running Mi A1 with LOS16.

1. Boot to TWRP

2. I did format data and wipe everything

3. Change slot

4. Boot TWRP

5. I did format data and wipe everything (why? I don't know, I don't really know yet how A/B partition works so I wipe both slots)

6. Boot TWRP

7. Install LOS 16

8. Boot TWRP

9. Install mindthegapps (far better than opengapps IMHO) and magisk

10. Boot to system.

Now, I did format data because I had already formatted data one of the multiple times I flashed a ROM. So I had to follow the guide posted in this thread to be able to encrypt my phone. I followed it and then I encrypted my phone.

After all of that, first OTA went through with no problems, mindthegapps and magisk survived.

Only thing I have to flash anytime I update via OTA is f-droid privilege extension.

That's it. Apart from that it's a beautiful form of art by Flex. I was thinking about getting the Redmi Note 7 but with this ROM I will wait until Note 8 is released and Note 7 is cheaper (and with some LOS ROM to flash).

Thanks again, [MENTION=5120185]flex1911[/MENTION] for this.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Klaus Meier:
You had to install this rom via twrp. There is no other way.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] albsat:
You can't if you come from another rom. You should go through more steps due to the ota feature.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Meme :D:
Anyone experiencing slight lag when switching apps in task manager? Like you are fast tapping recent menu button and it gets slightly lag? Its not bothering me but just asking..
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] airidosas252:
None to be noticed, though my build.prop is a bit modified just for this. It was really annoying.

Next solution would be to put performance level to quick in battery settings. That seems to solve a lot of unexpected UI lag too.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Meme :D:
I reflashed lineage and it seems bug is gone, but i have another problem.

USB Debugging option is missing from Developer Options? Hows that now possible?

Nvm, fixed.
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] methuselah:
Nightlies doesn't mean you have to flash each and everyone of them. You can stay on single one as long as you wish. If there are very huge device related changes then you flash .
[Xiaomi Mi A1 ROMs, Kernels, Recoveries, & Other De] Bastaerd:
You don't, you only need to boot it ;)