Released Apr 2018, newest ROM build today (3 ROMs still current). A phone that still gets updates keeps going long after its manufacturer stops.
Hardware
- SoC
- Qualcomm SDM845 Snapdragon 845
- CPU
- Kryo 385
- GPU
- Qualcomm Adreno 630
- Architecture
- arm64
- RAM
- 6/8 GB LPDDR4X
- Storage
- 64/128/256 GB UFS2.1
- Screen
- 5.99" · 1080x2160 · IPS LCD
- Battery
- 3400 mAh
- Network
- 2G GSM · 2G CDMA · 3G UMTS · 4G LTE
- Released
- Apr 2018
Sensors & features
- Accelerometer
- Compass
- Dual SIM
- Fingerprint reader
- GPS
- Gyroscope
- Light sensor
- NFC
- Qi wireless charging
- Ultrasound proximity sensor
Specs from the LineageOS wiki (CC BY-SA 3.0).
ROMs · 07
The Xiaomi Mi MIX 2S (codename polaris) has 7 tracked custom ROMs on CustomDroid — including LineageOS, /e/OS, LineageOS for microG and 4 more, running up to Android 15. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 6 Nov 2026.
Tick “compare” on two or three builds to see them side by side.
- LineageOSOfficial
installs with fastboot
per LineageOS's install guide for this device — follow it, not this summary
Needs a specific stock firmware first — check LineageOS's install guide
last build 5 Nov 2026 · checked 6 Nov 2026 - /e/OSUnofficialprivacy-focusedde-GoogledmicroGlast build 28 Oct 2026 · checked 6 Nov 2026
- LineageOS for microGOfficialde-GoogledmicroGlast build 15 Sept 2026 · checked 6 Nov 2026
- LMODroidOfficiallast build 18 Dec 2025 — over 6 months ago · checked 6 Nov 2026
- Paranoid AndroidOfficiallast build 17 Feb 2022 — over 6 months ago · checked 6 Nov 2026
- PixelExperienceDiscontinuedPixel-styleandroid 13, 12get.pixelexperience.orglast build 1 May 2023 · checked 6 Nov 2026
- crDroidDiscontinuedheavy customisation
files and SHA-256 as published
- build file · v7.12 · 940.89 MB · 14 Nov 2021crDroidAndroid-11.0-20211114-polaris-v7.12.zip
What crDroid published when we last checked. Verify the file you download against the hash on the project's own page; if they differ, don't flash it.
last build 14 Nov 2021 · checked 6 Nov 2026 - build file · v7.12 · 940.89 MB · 14 Nov 2021
RSS feed — subscribe to get new Xiaomi Mi MIX 2S builds in your reader · JSON
Before you flash
Flashing generally means unlocking the bootloader, booting a custom recovery, wiping, then installing the ROM. Exact steps differ per device and ROM, so follow the Install guide for the one you pick, and back up first. Check what can break (banking apps, DRM, carrier features) and how to get back to stock before you start. Why flash a custom ROM · All guides
Custom recovery for this device: TWRP. Flash the one your chosen ROM's guide asks for — common recovery errors.
This is a Qualcomm device, so on Windows you'll want the Google USB Driver (and QDLoader 9008 to unbrick) before your computer will see it in fastboot. Which USB drivers you need.
LineageOS publishes a step-by-step install guide for this device: wiki.lineageos.org/devices/polaris
Timeline
- Jul 2026LineageOS, /e/OS, Paranoid Android first tracked
- Sept 2026PixelExperience, LMODroid, LineageOS for microG first tracked
- Oct 2026crDroid first tracked
Dates show when CustomDroid first indexed each ROM for this device, not when support originally launched.
ROM availability and links come from each project. CustomDroid indexes builds, it doesn't mirror them — always download from the official project, verify the file's hash/signature, confirm it matches your exact codename, and back up before flashing.