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[Updated] The Best Nougat Based Custom ROM for MI 4i.

Dear MI 4i users,
We have got a lot of Nougat ROMs for our device recently and most of them are being actively developed.
You may have tried some of them, or may be wanting to try one now. But, with so many available ROMs, you'll be easily confused as to which is the best one yet for your daily use. So, here is little help for you to sort it out.
Note: If you have already tried the ROMs, please vote for your favourite one and help others to decide. You can also share your thoughts on the ROMs you've tried so far in this thread
List of best Nougat based ROMs for MI 4i
[*]AICP 12.1
AICP aka Android Ice Cold Project is highly customisable ROM with lot of features and best community. It also has highly active development with nightly builds, just like CM(used to be )
[*]AOSPExtended
AOSP Extended is an AOSP based rom which provides stock UI/UX with various customisations features along with the Substratum theme engine. The project has been made by cherry-picking various commits from various other projects. Being based on AOSP it provides a smooth and lag-free experience out of the box. We will constantly try to add more features and make it even better in future updates. A ROM by a user, for a user. #StayAOSP #ExtendYourDevice
[*]crDroid 7.1
[*]CyanogenMod 14.1
CyanogenMod is a free, community built, aftermarket firmware distribution of Android 7.0 (Nougat), which is designed to increase performance and reliability over stock Android for your device.
CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community.
[*]PixelROM
PixelROM is a custom firmware aka ROM for various Android devices. It is built from CyanogenMod 14.1 with additional features, performance and battery life improvements.
The idea behind PixelROM is to give users a ROM that is "blazing fast and buttery smooth".
[*]Resurrection Remix
Resurrection Remix the ROM has been based on CM, Slim Omni and original Remix ROM builds, this creates an awesome combination of performance, customization, power and the most new features, brought directly to your device
[*]Slim7
SlimRoms is a custom android operating system. Our main goal is to offer users a slimmed down yet feature rich alternative to other android operating systems.
The entire SlimTeam work together to bring you this tailor-made beauty straight from Android Open Source Project (AOSP) source code.
[*]XOSP 7
Common features:
All ROMs are either LineageOS or AOSP based. So, at minimum, you can definitely see the feature set of LineageOS(or CyanogenMod formely) in all ROMs.
AOSP based ROMS like Slim7, AICP may additionally have their own custom features which are very useful and allow a high-degree of customisation.
Effectively, all the ROMs add their own flavour to the sweeetness of Nougat to make your device a pleasure in hand. :fingers-crossed:
Important : Go through respective ROM thread list of bugs and respective solutions, if any.
•=============================== A VERY USEFUL TIP ===============================•​ If you're flashing a new Nougat ROM on top of existing Nougat ROM, then there is no need to back-up everything everytime. Just wipe Cache and Dalvik/ART in TWRP and then flash the new ROM.
First boot will take 4~6 minutes irrespective of ROM and it's normal.
This works because all of the ROMs above have same base (7.1.1). I've personally tested this trick and it worked for CM14.1 <-> AICP12.1 <-> PixelROM.
It should work for other ROMs too. I'll let you know when I try or you can try and share the result.
A big advantage of this trick is that all the apps will be preserved and even the customisation you had done will be restored when you revert back to previous ROM. But note that this may break some Gapps because all ROMs don't support same package.
Finally, be warned: this method works only for switching between Nougat ROMs given above. Don't try this if you're on a different ROM.
​

that trick will works fine now
but when CM theme engine comes up
you can't dirty flash a CM theme engine rom with OMS rom :/
the crDroid thread is goes here
https://forum.xda-developers.com/mi-4i/development/rom-crdroid-7-1-t3523948

faizauthar12 said:
that trick will works fine now
but when CM theme engine comes up
you can't dirty flash a CM theme engine rom with OMS rom :/
the crDroid thread is goes here
https://forum.xda-developers.com/mi-4i/development/rom-crdroid-7-1-t3523948
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Click to collapse
1. Of course. I'll warn when that happens. But, are you suggesting that LineageOS team is working on their own gene engine? Because, that would be great considering the simplicity of CMTE.
2. I have already added it to the list.

yourSAS said:
1. Of course. I'll warn when that happens. But, are you suggesting that LineageOS team is working on their own gene engine? Because, that would be great considering the simplicity of CMTE.
2. I have already added it to the list.
Click to expand...
Click to collapse
you link it to general forum
not the correct one, is located at android development

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faizauthar12 said:
you link it to general forum
not the correct one, is located at android development
Click to expand...
Click to collapse
Can someone recommend me rom + kernel combo for the fastest expirience?
I am currently using cr droid and I find it perfect for my needs, but will a kernel help with the performance and make the phone faster? If yes what kernel do you recommend?

rdlegy said:
[/COLOR]
Can someone recommend me rom + kernel combo for the fastest expirience?
I am currently using cr droid and I find it perfect for my needs, but will a kernel help with the performance and make the phone faster? If yes what kernel do you recommend?
Click to expand...
Click to collapse
faizauthar12's kernel.

Which rom is more stable in terms of battery and performance???
Sent from my MI 4i using XDA-Developers Legacy app

CrDroid, facing no bugs so far

nit.in_cs said:
CrDroid, facing no bugs so far
Click to expand...
Click to collapse
Use aosip
It is smooth

enigma03 said:
Use aosip
It is smooth
Click to expand...
Click to collapse
modern combat 5 crashes on aosip rom

nit.in_cs said:
modern combat 5 crashes on aosip rom
Click to expand...
Click to collapse
What about lineage os?
Sent from my MI 4i using XDA-Developers Legacy app

Rom for best battery backup?

enigma03 said:
What about lineage os?
Sent from my MI 4i using XDA-Developers Legacy app
Click to expand...
Click to collapse
Substratum is not working properly on lineage

add aosip and aospext they are better

Aicp vs pixel rom...what do you think its better?

hey what about viper rom . plss develop one for mi4i also

Anyone tried slimrom.?? Is it stable???

AospExtended ?
crDroid is good, AICP 12.1 also works great.
BTW you should add AospExtended to your list.
In my opinion it is cleaner and smoother compared to other Android N roms.

https://forum.xda-developers.com/mi-4i/development/rom-aospextended-rom-v3-1-t3550990
AospExtended ROM

Best xiaomi.eu ROM for mi 4i?

I changed my phone from mi 4i to mi 6, so i was about to give this phone to friend. But she not really technically inclined, per say. Currently my mi 4i has miui 8.0, but it is kind of unstable, super laggy at times and bad battery performance.
I was looking at most stable miui rom from xiaomi.eu as a permanent ROM. She loves miui so I dont want to flash cm based ROM. Appreciate anyone experiences in custom miui ROM.
Old version is fine, as long as it is most stable

In my opinion, Miui 7.1 or 7.2 from official site is the best in terms of performance and stability. Try it out

Hackerpunk1 said:
In my opinion, Miui 7.1 or 7.2 from official site is the best in terms of performance and stability. Try it out
Click to expand...
Click to collapse
Miui 7 is marshmallow? Official site means xiaomi.com? I presume .eu vs .com is the same except chinese bloatware isnt? All those firmwares and drivers will be the same? Or there will be differences?

No official marsmallow is available for our device. I was talking about the official xiaomi website. not the eu one

HI! As per my opinion, you should gift it to her with MIUI7 stable ROM (Android 5.0.1)
On the other hand, if she wants to use Android 7.1.2 then install AOSP extended official 4.2 (Android 7.1.2). Only its in built FM app does not work but it can be enabled with the third party FM app.
You have to do some manual settings and work in that AOSP Ext official ROM.
1) Remove inbuilt Magisk tool, FM and camera app with LInk2SD
2) Install Snapdragon camera, All in one tool box (It has Best cleaner & startup management tools), sweet selfie camera and Spirit2 FM (Requires ROOT & Use Official superSu)
Tutorials:
Install AOSP Ext ROMs
http://en.miui.com/forum.php?mod=viewthread&tid=736352&extra=
Enhance its performance.
http://en.miui.com/forum.php?mod=viewthread&tid=733406&extra=
You have to only teach her that, "Do not grant ROOT access to untrusted or unofficial apps".

Best 5 Custom Roms For Android pie Devices

Best Custom ROMs for Android
LineageOS
LineageOS is a well-known name in the Custom ROM category. If you have ever used custom ROMs on any Android device, then you must have heard the name of the CyanogenMod. In 2016, the developer of CyanogenMod ROM stopped the development of CyanogenMod ROM, but later they released the CyanogenMod ROM with a new name named LineageOS. So LineageOS is not new to the custom ROM category. A LineageOS is one of the best and No.1 ROM because the ROM is available for the wide range of Smartphones. The Custom ROM is made by the most prominent developer’s team and supports the community.
LineageOS official android Pie update is released for many devices. If we talk about the feature of the ROM, LineageOS comes with little bit customization yes the customization is limited on the LineageOS. If you want a fully stable version of LineageOS, then install the official and Nightly build of the LOS ROM. However, the Android Pie Update of LineageOS ROM released for many devices but currently, most of them are Unofficial. So you may get minor bugs and issues in the ROM. Overall the performance of the stable update of LineageOS is mind-blowing. LineageOS supports 200+ devices, so I hope your device will be included in the list.
Pixel Experience ROM
ixel Experience is the new Rom in the custom ROM category, but this Pixel Experience has gained popularity in a very short time. PE ROM is based on AOSP ROM, with Google Gapps included. As the name suggests the ROM exactly looks like and work like the Google Pixel ROM. ROM comes with the latest Gapps, so Google Pixel launcher, wallpaper, ringtones, fonts, and boot animation are built in this ROM.
If we talk about the Pixel Experience ROM performance, the PE Rom works very smoothly on any android device. Personally, I tried the Pixel Experience ROM on my Redmi Note 4, Redmi Note 5, Zenfone Max Pro M1, Redmi Note 5 Pro. Apart from that, you can get the full Google Pixel Experience in this ROM. If we talk about the customization the ROM support some basic customization like the Theme, always on display, Pixel blue accent color, etc. Like the LineageOS, PE ROM does not support the wide range of devices. However, if you are a Xiaomi device user, then it is likely that pixel ROMs are available for your device. Apart from that unofficial update is available for many Android devices but you may face some issues and bugs on the unofficial ROM.
CrDroid ROM
crDroid is designed to improve the customizability, performance, and reliability of the stock Android ROMIf you have ever used the Resurrection Remix ROM then you must know the RR Rome’s Customization option. Just like the Resurrection Remix ROM the crDroid also support the High level of customization. CrDroid Support the Status bar, Quick Settings, Lock Screen, Buttons, Navigation, Sound, Recent Screen Customization. Currently, the ROM support the 90+ devices and 30+ devices support the android Pie updates. With CrDroid, you not only get many customizations, but it also offers you real pixel experience. The android Pie update of the crDroid comes with the Google Gcam Camera app. , So if you want to tweaks with your Android device, then the crDroid ROM is for you.
Havoc-OS
The next rom in the list is Havoc-OS. ROM is becoming popular day by day and supports many Android devices. The stable version which running on android Pie released for many android devices. The Havoc OS also support the lots of customization like the CrDroid ROM. Apart from customization the Battery backup and the Network of the ROM is still better than the other android Pie based custom ROMs. I tried this ROM on my Zenfone Max Pro M1, and the ROM works very perfectly on it. The Performance of the ROM is outstanding. The customization is limitless in the Havoc OS ROM. You can select the Theme, Customize the Notification Panel, Animations, and so on. Overall the ROM is perfect in all terms if you want a feature pack rom then once try out the Havoc ROM on your android device.
AOSP Extended ROM
AOSP Extended ROM is an aosp based custom ROM which provides you the Stock UI along with some customization option. As the name suggests, the aosp source code directly builds the ROM. The ROM is little bit look like the Pixel Experience ROM because the customization is limited in this ROM. However, the ROM support the substratum Theme engine which completely changes the looks of your device. The Network connection and the battery backup of the ROM are good. AOSP ROM provides you a full lag free and smooth experience. The AOSP developers continue updates their OS and which is a plus point of this ROM. However, all the above ROMs are also regularly updated by the developers. The AOSP Rom also support the forum support. AOSP extended ROM currently supports almost the all smartphone manufacturer device.

LINEAGE EXTENDED MIDO [REDMI NOTE 4x]

Hey guys Techniroy is here with another ROM for you which is basically for Gamers and also for those who want good battery backup and also performance as well this ROM is basically based on Oreo with lots of Customization you need and close to stock android vanilla as well,as per my experience this ROM is always good when i need good screen on time/gaming performance and daily task as well with nightly updates by the respected Developer,the Developers have optimized the overall ROM so perfectly it give us huge performance even without any overclocking please do check out this ROM once you'll see what i am trying to saying
here is the mega link https://mega.nz/#!FjRjna6L!Ikf1D2er8KCHK1KJ0JaEj3IUHxHiEo9eP-O8sQsUGZ8
Credits
p3dboard, p3dboard, alexey71

Hi this is a recommendation Custom ROM Gaming

Pixel Experience
Pixel Experience is the favorite Android Custom ROM, because this ROM is light like the stock android. There are not many adjustments to this ROM, this has the aim of optimizing the performance of this ROM.
Download Pixel Experience
Havoc OS
One more ROM based on AOSP, namely Havoc OS. Even though it has the same AOSP base as other ROMs, Havoc OS has its advantages.
Based on information from the Official Havoc OS thread in the XDA Developer Community, this Custom ROM is inspired by Google Pixel, which will continue to be improved so that it has optimal performance like Google Pixel.
Download the Havoc OS
Ancient OS
Ancient ROM is a ROM developed by the Ancient Family Team. This ROM seems simple and light, and is designed for gaming or just social media.
Ancient doesn't just develop ROMs, they develop their custom kernels. Wow, great.
Download Ancient
Mokee ROM
Maybe not many know about Mokee. Even though Mokee is a ROM that is diligent in providing system improvements, this ROM always follows Google to provide users with the latest Android system.
Mokee claims via their website mokeedev.com that this ROM provides a smooth and lag-free experience on your device. Must try.
Download Mokee ROM
Lineage OS
Lineage OS is the successor to CyanogenMod, which initially had stopped development. Lineage OS or commonly abbreviated as LOS was launched in December 2016.
This ROM is fairly constant and light, so it can be taken to play games.
Download Lineage OS
EvolutionX
EvolutionX is the ROM that I use today. Quite happy with the performance of this Custom ROM. EvolutionX has many customizations that can be adjusted according to your wishes. This ROM has a balancing characteristic (balanced) between performance and battery.
Based on my experience as a user of this ROM, EvolutionX is light, fast, and reliable for playing games like PUBG.
Download EvolutionX
AOSP Extended (AEX)
AOSP Extended is one of the Android phone Custom ROMs that provide support for many devices, it is not strange that this ROM has many users.
Similar to EvolutionX, this ROM has quite a lot of customizations that can make us happy using this Custom ROM.
Download AOSP Extended
Carbon ROM
Although not as popular as other ROMs, Carbon ROM is a must-try ROM for gaming purposes.
With a fairly complete adjustment, the reality does not reduce its performance, and of course, it has its magnetic power for this Custom ROM.
Download Carbon ROM
There are many of the best Custom ROMs for gaming, but the Custom ROMs I described above are more updated.
Until the time this article was written, all of the Custom ROMs above have the latest Android version, namely Android 10.0 Q, and it is not impossible if it will continue to be upgraded until the next Android version.
Note: The Custom ROM above does not provide support for all types of smartphones, you can check on their respective sites what type of cellphone you have or not.