Xiaomi Mi A1 (xiaomi-tissot)

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

Xiaomi Mi A1
	; Xiaomi Mi A1
Manufacturer	Xiaomi
Name	Mi A1
Codename	xiaomi-tissot
Released	2017
Type	handset
Hardware
Chipset	Qualcomm Snapdragon 625 (MSM8953)
CPU	Octa-core 2.0 GHz Cortex-A53
GPU	Adreno 506
Display	1080x1920 IPS LCD
Storage	32 GB / 64 GB
Memory	4 GB
Architecture	aarch64
Software
Original software	Android (MIUI)
Original version	7.1.2
Extended version	9.0 (Linux 3.18.31 - 3.18.120)
FOSS bootloader	no
postmarketOS
Category	community
Pre-built images	yes
postmarketOS kernel	6.8.2
Unixbench Whet/Dhry score	3703.7

Xiaomi Mi A1 (xiaomi-tissot) is Xiaomi Mi 5X (xiaomi-tiffany), but with Android One on board and A/B structure. On the Xiaomi Mi A1 (xiaomi-tissot), unlike the Xiaomi Mi 5X (xiaomi-tiffany), you do not need to link your Mi Account and wait 15 days (360 hours) to unlock the bootloader.

Maintainer(s)

Users owning this device

AAT596 (Notes: LineageOS 18.1)
Augis154 (Notes: PMOS with Plasma mobile)
Bczeman (Notes: Has 2 with replacement display 1 with orignal display)
Dferrg
Hiddener (Notes: pmOS + LineageOS, new battery from woyax/deji, new screen from replacebase)
IonAgorria (Notes: LineageOS - OK)
Jenneron
JIaxyga (Notes: x2 Mainline maintainer)
Kevinwidjaja21 (Notes: Stuck in fastboot.)
Miki (Notes: cracked but working display, broken power button)
Netman (Notes: Screen has been replaced, still having an original cracked one)
Paradox (Notes: Daily driver. Goodix, Nohon battery, EBBG/ILITEK)
Tfuxu (Notes: Flashed recently with LineageOS 18.1)
Ungeskriptet

Installation

Follow the Installation guide

$ pmbootstrap init # choose Vendor: qcom Device codename: msm8953
$ pmbootstrap install
$ pmbootstrap flasher flash_lk2nd
$ pmbootstrap flasher flash_rootfs

Note: pmbootstrap will install the lk2nd bootloader.

Pre-built images

$ fastboot flash boot xiaomi-tissot-lk2nd.img
$ fastboot flash userdata xiaomi-tissot.img # You can use system also but userdata is recomended

Or

$ fastboot flash boot_a xiaomi-tissot-lk2nd.img # You can use boot_b if you want
$ fastboot flash system_a xiaomi-tissot.img # system_b
$ fastboot set_active a # b

How to enter flash mode

Stock Fastboot: Power on the device with both Power and Volume Down buttons
lk2nd Fastboot: Power on the device. After it vibrates, hold Volume Down

Note: Pressing the keys too early will cause the stock bootloader to handle the key combination. You will end up in the wrong Fastboot interface.

Recovery: Power on the device with both Power and Volume Up buttons

OEM unlock

First make sure to enable USB debugging [1] and OEM unlock in Android. Then with device powered off, hold down Volume Down and Power buttons simultaneously for a few seconds, until Fastboot Mode screen appears. Plug in USB cable and do:

$ fastboot oem unlock

Wipes

Wipes work very strangely. Fastboot says that the wipes were successfully completed, but the partitions are not cleared. Therefore, the only way out is to make wipes from twrp or use formatting.

$ fastboot format:ext4 boot_a
$ fastboot format:ext4 boot_b
$ fastboot format:ext4 system_a
$ fastboot format:ext4 system_b
$ fastboot format:ext4 userdata

Dual booting

We can use the a/b markup feature for dual booting. In this case, we will have the kernel in the boot_a (or boot_b) section and the rootfs will be located in the same system_a (or system_b) slot. The opposite slot will use Android.
To find out the active slot, run in fastboot:

$ fastboot getvar current-slot

To switch a slot, run:

$ fastboot set_active a / b

E.g., if your Android ROM uses slot a, flash lk2nd to slot b:

$ pmbootstrap flasher flash_lk2nd --partition boot_b

The system partition severely limits the available space. So, you can install the rootfs to an SD card.

What works

Main:

USB Networking
Flashing
Touchscreen - focaltech,ft5435 (edt-ft5x06)
Display - EBBG ili7807(ilitek) / tianma otm1911(focal) / EBBG ft8716(focal)
WiFi - WCN3680B (WCN36XX)
Xwayland
FDE
Bluetooth - WCN3680B (WCN36XX)
Hall Effect Sensor - BU52061NVX (gpio-keys)
Accelerometer - bosch,bmi120 (bosch,bmi160)
Magnetometer - AKM, AK09918 (asahi-kasei,ak8975)
Battery
Charger
Audio - pmaports!4268
SMS
Calls
Mobile Data (there are some variants where it is not working)
USB OTG
GPS

Other:

Notification LED - awinic,aw2013

What does not work