CustomDroid
Xiaomi

Xiaomi Redmi Note 9

Qualcomm MSM8939 Snapdragon 615released Nov 2015
ro.product.devicemerlin

other versions of this model: Xiaomi Redmi Note 9 merlinxmatch the codename on your phone before flashing: builds aren't interchangeable

also sold as merlinnfc · Redmi 10X 4G · Redmi Note 9 · M2003J15SC · M2003J15SI · M2003J15SS

Xiaomi Redmi Note 9
photo: LineageOS Wiki

Codename shared with another phone. merlin is also the codename of the Motorola moto g3 turbo. Codenames are only unique per manufacturer, so before flashing, check that a build names the Xiaomi Redmi Note 9, not just merlin.

No recent updates

Released Nov 2015. Support looks quiet — check the build dates below before relying on it.

Hardware

SoC
Qualcomm MSM8939 Snapdragon 615
CPU
Cortex-A53
GPU
Qualcomm Adreno 405
Architecture
arm
RAM
2 GB
Storage
16 GB
Screen
5" · 720x1280 · IPS LCD
Battery
2470 mAh
Network
2G GSM · 3G UMTS · 4G LTE
Released
Nov 2015

Sensors & features

  • 3.5mm jack
  • Accelerometer
  • Compass
  • Proximity sensor

ROMs · 01

The Xiaomi Redmi Note 9 (codename merlin) has 1 tracked custom ROM on CustomDroid — including Ubuntu Touch. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 21 Sept 2026.

RSS feed — subscribe to get new Xiaomi Redmi Note 9 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

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.

Timeline

  1. Sept 2026
    Ubuntu Touch 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.