Xiaomi Redmi Note 4G (xiaomi-dior)

Features
Flashing Whether it is possible to flash the device with pmbootstrap flasher.	Partial
USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).	Works
Battery Whether charging and battery level reporting work.	Partial
Screen Whether the display works; ideally with sleep mode and brightness control.	Works
Touchscreen	Works
Multimedia
3D Acceleration	Untested
Audio Audio playback, microphone, headset and buttons.	Untested
Camera	Untested
Connectivity
WiFi	Works
Bluetooth	Untested
GPS	Untested
Modem
Calls	Untested
SMS	Untested
Mobile data	Untested
Miscellaneous
FDE Full disk encryption and unlocking with unl0kr.	Untested
Sensors
Accelerometer Handles automatic screen rotation in many interfaces.	Untested

Xiaomi Redmi Note 4G
	; FbKeyboard and pfetch on Xiaomi-dior
Manufacturer	Xiaomi
Name	Redmi Note 4G
Codename	xiaomi-dior
Released	2014
Type	handset
Hardware
Chipset	Qualcomm Snapdragon 400 (MSM8928)
CPU	Quad-core 1.6 GHz Cortex-A7
GPU	Adreno 305
Display	720 x 1280 pIPS LCD
Storage	8GB
Memory	2GB
Architecture	armv7
Software
Original software The software and version the device was shipped with.	Android 4.2
Extended version The most recent supported version from the manufacturer.	Android
postmarketOS
Category	archived
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline.	no
Device package	device-xiaomi-dior
Kernel package	linux-xiaomi-dior

This device has been archived. This means that it no longer appears in pmbootstrap and is likely broken.
It can still be selected in pmbootstrap init by typing in the vendor and codename, but you will have to build the kernel package manually.

Contributors

Edwin0cheng

Maintainer(s)

Users owning this device

How to enter flash mode

Entering fastboot: hold Volume Down + Power buttons until fastboot mode is displayed on the screen.
Entering recovery: hold Volume Up + Power buttons. The default is Mi Recovery. TWRP is needed for installation, which can be obtained here

Installation

To flash this device, the boot partition have to be flashed by fastboot:

$ pmbootstrap export

$ fastboot flash:raw boot /tmp/postmarketOS-export/boot.img-xiaomi-dior

However, rootfs could be flash by pmbootstrap normally:

$ pmbootstrap flasher flash_rootfs

And its system partition is quite small (800mb), to flash a large distribution (e.g. xfce4), you have to:

1. Split the boot and root partitions (hint: you can use pmbootstrap install --split instead of losetup tricks):

sudo losetup /dev/loop0 /tmp/postmarketOS-export/xiaomi-dior.img sudo dd if=/dev/loop0p1 of=boot_partition.img sudo dd if=/dev/loop0p2 of=root_partition.img sudo losetup -d /dev/loop0

2. Flash the boot partition to system partition:

$ fastboot flash system boot_partition.img

3. Use the netcat method to flash to user partition:

https://gitlab.postmarketos.org/postmarketOS/pmbootstrap/-/issues/456

Additional info

This original implementation of framebuffer device do not support framebuffer console and X-Windows, we patched all missing pieces such that it works. So xfce4 and FbKeyboard works now.

However, due to lacking of DRM driver, all drm related UI are not workings.