Follow this guide to install Redmi Note 4 LineageOS 15.1 ROM with full Project Treble support.
Xiaomi’s record-breaking device – the Redmi Note 4 is finally getting some serious development support via third-party developers. And why shouldn’t it? The device is nicely spec’d, easily affordable, and is also the highest selling smartphone by Xiaomi. Since its release last year, the device has seen several MIUI updates. But that’s not it, it seems like third-party developers at XDA forums are now actively participating in bringing good things to the phone. We recently saw Franco Kernel support for it. And this time, you are in for a treat with full Project Treble support. So go ahead and follow the steps to install Redmi Note 4 LineageOS 15.1 ROM right now.
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Redmi Note 4 LineageOS 15.1 ROM with Project Treble Support
Android Oreo introduced Project Treble to represent a major re-architecture of the Android Framework. It has been introduced to facilitate easier and faster OS updates for Android devices. Google has been able to modularize the OS, by drawing a line between silicon/OEM code and the normal Android Framework. As a general rule of thumb, all devices shipping with Oreo out-of-the-box must support Project Treble. It not only affects the official firmware updates but also has a drastic effect on the custom ROM development scene. With added support, Treble-enabled devices will be eligible to install a generic ROM without having to wait for the OEM/Silicon manufacturer to update the dedicated drivers.
Also read – Project Treble Supported Devices List (Official and Unofficial)
Now before you install Redmi Note 4 LineageOS 15.1 ROM, let us talk a bit more about how XDA senior member – abhishek987 was actually able to achieve this. According to XDA, the developer converted the unused ‘CUST’ partition to ‘Vendor’, which is approximately 830 MB in size. The partition originally contained stuff related to MIUI. But it had no significance on the AOSP-based build. With some help from phhusson, the lead developer of the phh-Treble project, abhishek987 was finally able to boot the ROM.
The ROM developer has revised the files required for flashing this new build. The changelog for Redmi Note 4 LineageOS 15.1 ROM with Treble support, is as follows:
- Updated to Android 8.1 Oreo
- Updated to oreo Tissot Blobs
- Rebased kernel to support new (goodix touch , ov camera, and displays)
- Fixed OmniVision camera pink tint and crash in bright light photos
- Add TextClassifier Selection models
- Implemented full treble
So now that you know all about the new ROM, let us hop on to the instructions and install Redmi Note 4 LineageOS 15.1 ROM.
Prerequisites
- Flashing a custom ROM requires your phone’s bootloader to be unlocked. If you haven’t done it yet, then follow this guide to unlock bootloader on Redmi Note 4.
- Take a complete backup of your phone and the personal data. You can follow our tutorial on how to backup Android devices.
- Charge your device to at least 50-60% battery level.
- Install ADB/Fastboot tools on your PC. You will need this to flash the modified TWRP recovery.
Download LineageOS 15.1 ROM for Redmi Note 4
ROM: lineage-15.1-20180324-UNOFFICIAL-mido.zip
GApps: MindTheGAppps
Modified Magisk: Magisk-v16.0-cust.zip
Steps to Install Redmi Note 4 LineageOS 15.1 ROM (Android 8.1 Oreo)
- Download the ROM and GApps zip files from above and copy them to your phone’s storage.
- Boot your Redmi Note 4 into Fastboot mode by holding down the Volume Down + Power button simultaneously.
- Download the modified TWRP recovery: twrp-3.2.1-mido-vendor-v4.img
- Copy the downloaded file to C:\adb, where the ADB/Fastboot files are present.
- Hold down the SHIFT key on the keyboard and right-click on an empty space inside the folder.
- Select “Open PowerShell window here”.
- Flash the TWRP recovery using the following command:
fastboot flash recovery twrp-3.2.1-mido-vendor-v4.img - Once the recovery has been flashed, power down your phone.
- Press and hold the Volume Up + Power button to enter TWRP.
- Go to “Wipe” -> “Advanced Wipe” and wipe the System, Data, and Cache partitions.
- Tap on the ‘Install” menu.
- Navigate to the internal storage and select the ROM “lineage-15.1-20180324-UNOFFICIAL-mido.zip” file.
- Finally, swipe the button on the screen to install Redmi Note 4 LineageOS 15.1 ROM.
- Repeat from step 10 to flash the GApps and Magisk root zip.
- Once complete, hit the “Reboot System” button.
Your Redmi Note 4 will boot into Android 8.1 Oreo ROM with full Project Treble support. The ROM developer has also stated that the source code will be published soon on Github so that others can use to enable Treble as well. So go ahead and enjoy the awesome new Oreo features like Autofill Framework, Notification channels, Picture-in-Picture mode, and more.
So you have just been able to install Redmi Note 4 LineageOS 15.1 ROM with Project Treble support. If you have any questions, leave them down in the comments below.
How does time it will take to boot
A couple of minutes, at max.
Any known issues with this ROM?
like encryption pattern for rebooting like that.
I really want to use this ROM. Is it safe to use this ROM for a long time?
Hi Akhil, according to the source, there isn’t any issue. You can freely use it for the long term.
Hey man, The modified magisk link is dead, please update
Hi, thank you for notifying. I have updated the link, kindly check.
Since its a treble based ROM so can we use the same to flash in other treble enabled device, namely Honor 9 Lite.
Have already flashed the AOSP V12 (Phhs) but its way too scrappy as a daily driver & since the stock rom of H9L hasn’t been out yet so need to rely on a custom rom for the time being.
Actually, no. I wouldn’t recommend. The ROM is sort of an hack and changes the Note 4 partition layout by adding an individual partiton. You may look forward to phh-Treble for this.
Just installed this ROM. Works great and is very fast. 2 things: I had trouble with sharing Internet over Wifi which works but the conecting devices can’t access Internet – and I had trouble to get my HUE app to reconize the bridge – which I was able to solve in the end entering it’s IP address manually. A part from this it seams good enough to be used as a daily driver. Question: Is this ROM updated/maintained by somebody? Where would updates be posted?
Hi, the ROM is being updated by a third-party developer at XDA (Check the source link). I just noticed that a new build was pushed on 24th this month and have updated the links above.
Hopefully, the new build will bring a solution to your current problems.
Kindly update the Gapps link also.
LOS is Oreo 8.1
Gapps are 8.0
Thanks
Hello Bhupendra. Thank you for notifying us. I have updated the links with the latest GApps for Android 8.1 Oreo.
Hey there, My Redmi Note 4 is stuck at checking for updates screen from more than 20 minutes now. It isn’t responding. Is it normal or some bug?
Kindly give me some fix for this if possible.
Hi Kanishka, there’s no such bug present in the ROM. I hope you have followed the steps correctly and only used the TWRP, ROM, Gapps, and Magisk files as provided in this post?
Do I need to install the fastboot/adb files, or the official Xiaomi fastboot utility would be able to flash TWRP for me properly?
Hi Eugenia, I would recommend installing fastboot/ADB first and then manually flashing the TWRP image. I am unsure if the Mi Flash tool allows us to do that.
I have some questions regarding differences between packages.
What is TWRP on provided link different from the official one for mido? (official: https://dl.twrp.me/mido/) – both are 3.2.1-0.
What is MindTheGApppsdifferent compared to OpenGapps for Android 8.1 (ARM64)?
http://opengapps.org/
Will official Lineage OS 15.1 have full support for Treble and when is expected to be published on lineageos.org site?
Thank you.
Hi Nokos, I’d love to clear the differences.
1) This ROM is different than other regular custom ROMs altogether. In order to install it, you’ll need to use a special compiled build of TWRP recovery.
2) MindTheGApps is what people from LineageOS recommend. That’s because several users reported compatibility issues initially with OpenGApps. The recommendation was more likely for the broader set of OEM devices. For some OG may work fine, but then not much for others.
I have checked the official Github for any traces of the device name and its corresponding codename, but couldn’t find any. Which means there are yet no plans for it.
Even if it does get official support, project Treble won’t be supported unless the OEM chooses to add it. What’s done with this ROM is a clever hack by the developer. As for the official Treble implementation, it is alleged to accompany the Android 8.1 Oreo (Read here).
Hope this clears it up. If you still got some questions, feel free to ask.
Hi, I just came here to say Thanks! I was scourging reddit, and other websites for hours now to find out what’s going on with the Project Treble (technical explanations to the codebase). I use a Mido (running RR 5.8.5) myself, your post neatly outlined what’s going on, and why I would like to do what I’d do (switching to treble-enabled Oreo). I haven’t tried this ROM or anything yet but just came here to comment about how well-put this guide and you as a person are (in terms of explaining and for helping out people with respect and passion in the comments section). Great job! Have your site bookmarked. Please do cover more topics on LineageOS moving forward to Oreo and P. Thank you!
Also, If you’d answer, could you please tell me if I wanted to go with AOSPExtended or Resurrection Remix or LineageOS, I’m a customization behemoth and have a perfectly-tweaked setup for my needs (special mentions to Tasker + Xposed + LastPass), so the answer obviously would be RR Nougat, but, I’m starting to feel pushy about how AOSPExtended and LineageOS are way ahead of RR in terms of pushing regular updates/builds for the community (I’ve noticed tons of updates to their Oreo builds). I also want to live on the bleeding edge with little compromise towards features but am having hard time figuring out which ROM to go with to stay “updated” and “feature-rich” at the same time.
I’m really sorry for my long and nagging comment, just something bugging me for quite sometime, wanted to get it off my chest. Please do explain in much detail as you can, if you will. Again, Thank you very much! 🙂
Hi Ashok,
First off, I really appreciate that you wrote that many lines just to show generosity towards my work. I am glad that my passion is paying me off. Seeing the commenting literally put a smile on my face. So thank you for that!
Now over to your question. I’d probably rule out LineageOS. That’s because RR itself is majorly based on LAOS code. Plus, I do feel that RR is meant for users who really want to customize. As for AOSPExtended, I haven’t really tried it. But from what I could tell from the ROM screenshots available on the net, it doesn’t really stand a chance in front of Resurrection Remix.
I would suggest that you give it a try though, who knows, maybe it holds something that RR doesn’t. Both the ROMs are pretty much updated once or twice a month, which means the update frequency is almost the same.
I recently tried Resurrection Remix Oreo to revive my old OnePlus One, and it feels fantastic. And definitely rich in features.
In case I missed anything, please let me know. And please don’t feel that your commenting is nagging. I like it when readers take out time to get into a conversation about the topic. After all, that’s what the blog is about, isn’t it?
First, Thanks for your work
Second, I just want to understand some points
– I already running official Lineage OS 14.1 on My Xiaomi redmi note 4 and getting OTA updates regularly
– Since Project Treble is all software experience and fast updates so, does this rom support any kind of OTA updates and if so does it will be direct from google or from Lineage team (since there still no official build)
Thank in advance
Hello,
This ROM is basically a hack, that converts an unused partition to be used as ‘vendor’. Not Xiaomi, LineageOS, or Google support this in any way. Every time the ROM is updated, the link here will be updated as well. And you will have to manually flash it over using TWRP. Your data in this process will not be erased, it will stay intact.
You will only get LineageOS OTA while on the official build. If you favor OTAs over the manual installation, I’d advise to stick with LineageOS 14.1 and wait for the official 15.1 support.