Xiaomi POCO X3 NFC (xiaomi-surya)

U-Boot
Secondary Bootloader	Works
Mainline	Works
Internal Storage	Works
SD card	Works
USB Host	Partial
USB Peripheral	Works
Display	Works
Buttons	Works

Features
Flashing	Works
USB Networking	Works
Internal storage	Works
SD card	Works
Battery	Partial
Screen	Works
Touchscreen	Works
Multimedia
3D Acceleration	Works
Audio	Partial
Camera	Broken
Camera Flash	Works
IR TX	Broken
Connectivity
WiFi	Works
Bluetooth	Works
GPS	Broken
NFC	Works
Modem
Calls	Works
SMS	Works
Mobile data	Works
Miscellaneous
FDE	Works
USB OTG	Works
Sensors
Accelerometer	Works
Magnetometer	Works
Ambient Light	Works
Proximity	Works
Haptics	Works

Xiaomi POCO X3 NFC
	; Xiaomi POCO X3 NFC
Manufacturer	Xiaomi
Name	POCO X3 NFC
Codename	xiaomi-surya
Model	POCO X3 NFC: M2007J20CG; POCO X3 (India): M2007J20CI;
Released	2020
Type	handset
Hardware
Chipset	Qualcomm Snapdragon 732G (SM7150-AC)
CPU	Octa-core (2x 2.3 GHz Kryo 470 Gold ; 6x 1.8 GHz Kryo 470 Silver)
GPU	Adreno 618
Display	1080 x 2400 (120Hz 6.67" IPS LCD)
Storage	64/128 GB
Memory	6 GB
Architecture	aarch64
Software
Original software	Android (MIUI)
Original version	10 (MIUI 12)
Extended version	12 (MIUI 14)
FOSS bootloader	partial
postmarketOS
Category	community
Pre-built images	yes
postmarketOS kernel	Mainline 6.13.7
Generic port	Generic SM7150 (qcom-sm7150)

This device is based on the Snapdragon 732G. See the SoC page for common tips, guides and troubleshooting steps

Maintainer(s)

Users owning this device

Adrian (Notes: Mainline shenanigans, huaxing)
Cxt (Notes: Main phone)
DomHeadroom (Notes: 6/64GB. Lineageos 21, main phone)
Fembinary (Notes: daily driver, on Ubuntu Touch)
JIaxyga (Notes: 6/128 Currently unavailable)
MuseCat (Notes: Main)
Rainbyte (Notes: Daily driver ; OS: Android 12 (ArrowOS))
Soupborsh (Notes: Lindroid with LineageOS)
Ungeskriptet (Notes: Main device for pmOS)
Wizzdom (Notes: Daily driver, running LineageOS 18.1)
Zerkalo (Notes: not tested yet)

How to enter flash mode

Bootloader: Power on the device with both Power and Volume Down buttons.
Recovery: Power on the device with both Power and Volume Up buttons.
Fastbootd: Reboot into bootloader mode first and then run fastboot reboot fastboot from a computer.

Know your display panel

To determine whether your display is Huaxing or Tianma, enable USB debugging in Android and run the following command on your computer:

$ adb wait-for-device && adb reboot && adb logcat | grep "panel name is"

Mainline

The work in progress mainline kernel is being developed here.

Mainline status

Feature table for SM7150
Device feature table:

Component	Model	Status	Notes
Display	Huaxing FHD DSC panel with NT36672C controller	Y	Works from here
Touchscreen	NovaTek NT36672C	Y	Connected via SPI, needs firmware
Charging	qcom,qpnp-smb5 (downstream)	N
Charging	Texas Instruments BQ25968	N
Fuel gauge	qcom,pm6150-qg	P
Accelerometer and gyroscope	Bosh bmi220	Y	Managed by SSC
Ambient light and proximity sensor	Sensortek stk3a5x	Y
Magnetometer	AKM ak09918c	Y
Haptics/Vibrator	Awinic aw8624	Y
Speakers	Texas Instruments tas2562 (SPK)	Y	Works from here
Speakers	Texas Instruments tas2564 (EAR)	N
Camera regualtor	OmniVision wl2866d	N	Called `longcheer,wl2866d` downstream
Camera	Sony IMX682	N	Main camera
	Samsung S5K3T2	N	Front camera
	Hynix Hi-1337	N	Ultrawide camera
	Hynix Hi-259	N	Macro camers
	OmniVision ov02b1b	N	Depth camera
NFC	NQX NCI NXP55303 (PN553 type)	Y

U-Boot

U-Boot has been successfully ported to SM7150 in this branch. This already includes dts for Xiaomi POCO X3 NFC.
The display and buttons work great. UFS and USB (in peripheral mode) also work, but we rely on the first stage bootloader setting the regulators. Therefore it is marked as Partial.
Casey is doing an excellent job developing U-Boot for QCOM SoCs. This means that soon the features table will be completely “green” for us too. Unless the signing keys leak or we crack them, ABL will always remain the first stage bootloader. Therefore we can only use U-Boot only as a second stage bootloader. However, we will do everything possible so that U-Boot relies as little as possible on the first stage bootloader and is ready to configure everything necessary on its own.

Serial debugging (UART)

Xiaomi POCO X3 NFC uses 1.8 voltage for UART. So make sure that the logic one of your TTL adapter starts at a voltage below 1.8v.
The RX pin should be pulled-up to 1.8v to obtain the log. In Linux and U-Boot we pulled-up this pin software, but if you want to receive the log the rest of the time too, then you need to pull-up this pin hardware. It is enough to solder the TX pin of the adapter to the RX pin on the device, but make sure that your TTL adapter has a voltage of 1.8v (If this is not the case, then use a voltage divider schematic or buy an adapter with a voltage of 1.8v).

Gallery

Xiaomi POCO X3 NFC with Plasma Mobile
U-Boot on Xiaomi POCO X3 NFC