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![OpenWrt logo](include/logo.png)
# openwrt-redmi-ax3000

`Openwrt` for `Redmi AX3000` / `Xiaomi CR8806` / `Xiaomi CR8808` / `Xiaomi CR8809`

| Device | Boot | Switch | CPU Ethernet | NSS NAT | 2.4G WiFi | 5G WiFi |
| :-: | :-: | :-: | :-: | :-: | :-: | :-: |
| Redmi AX3000 | ❓ No test |
| Xiaomi CR8806 | ✔️ | ✔️ | ✔️ | ✔️¹ | ⚠️ Unstable | ✔️¹ |
| Xiaomi CR8808 | ✔️ | ✔️ | ✔️ | ✔️¹ | ⚠️ Unstable | ✔️¹ |
| Xiaomi CR8809 | ❓ No test |
> NOTE¹: For 160MHz, `Country Code`, `Width` and `Channel` need to be set correctly. And wait 1 minute for radar detection, then the WiFi will be appeareed.
>
> ```
> uci -q batch <<-EOF
> wireless.radio1.country='CN'
> wireless.radio1.htmode='HE160'
> wireless.radio1.channel='64'
> EOF
> ```
## How to build

OS: `Ubuntu 20.04 (focal)`

```bash
# Install dependencies
sudo add-apt-repository ppa:npalix/coccinelle
sudo apt update
sudo apt install build-essential clang flex g++ gawk gcc-multilib gettext \
git libncurses5-dev libssl-dev python3-distutils rsync unzip zlib1g-dev \
coccinelle

# Clone this repo
git clone https://github.com/hzyitc/openwrt-redmi-ax3000
cd openwrt-redmi-ax3000

# Update and install feeds
./scripts/feeds update -a
./scripts/feeds install -a

# Configure
make menuconfig

# Download
make -j16 download

# Build
make -j$(nproc)
```

OpenWrt Project is a Linux operating system targeting embedded devices. Instead
of trying to create a single, static firmware, OpenWrt provides a fully
writable filesystem with package management. This frees you from the
application selection and configuration provided by the vendor and allows you
to customize the device through the use of packages to suit any application.
For developers, OpenWrt is the framework to build an application without having
to build a complete firmware around it; for users this means the ability for
full customization, to use the device in ways never envisioned.
## How to install

Sunshine!
### Get `UART` access

## Development
> Input from `UART` will be allowed after a successful `TFTP recovery`.
To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack of a
case sensitive file system.
1. Connect `UART` and `LAN`.

### Requirements
2. Download the vendor firmware:

You need the following tools to compile OpenWrt, the package names vary between
distributions. A complete list with distribution specific packages is found in
the [Build System Setup](https://openwrt.org/docs/guide-developer/build-system/install-buildsystem)
documentation.
Offical website: https://www.miwifi.com/miwifi_download.html

```
gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt
subversion libz-dev libc-dev rsync which
```
| Device | URL |
| :-: | :-: |
| Redmi AX3000 | https://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/ra81/miwifi_ra81_firmware_1dd69c_1.0.33.bin |
| Xiaomi CR8806 | https://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/cr8806/miwifi_cr8806_firmware_fe70b_6.2.14.bin |
| Xiaomi CR8808 | https://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/cr8808/miwifi_cr8808_firmware_9d216_6.2.11.bin |
| Xiaomi CR8809 | https://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/cr8809/miwifi_cr8809_firmware_b814a_6.2.102.bin |

3. Use [`MIWIFIRepairTool`](https://bigota.miwifi.com/xiaoqiang/tools/MIWIFIRepairTool.x86.zip) to recover the device's firmware.

Offical tutorial: https://www.xiaomi.cn/post/19134127

> This tool simply does `TFTP recovery`. You can use other `DHCP` and `TFTP` server as well.
>
> Here are some useful links:
>
>> https://forum.openwrt.org/t/adding-openwrt-support-for-xiaomi-redmi-router-ax6s-xiaomi-router-ax3200/111085/513
>>
>> https://github.com/mikeeq/xiaomi_ax3200_openwrt#uart-flash
>>
>> https://openwrt.org/inbox/toh/xiaomi/xiaomi_ax3600#tftp_recovery

### Quickstart
4. Hold the `reset` button and reboot the router until the `system` LED blink.

1. Run `./scripts/feeds update -a` to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
5. Wait until the firmware being flashed.

2. Run `./scripts/feeds install -a` to install symlinks for all obtained
packages into package/feeds/
6. Unplug then plug back in the power.

3. Run `make menuconfig` to select your preferred configuration for the
toolchain, target system & firmware packages.
7. Send any key stroke to `UART` to interrupt the `U-boot`.

4. Run `make` to build your firmware. This will download all sources, build the
cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen
applications for your target system.
8. Run the following command inside `U-boot`:

### Related Repositories
```shell
setenv boot_wait on
setenv uart_en 1
saveenv
```

The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called `opkg`. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
Now we have enabled `UART`.

* [LuCI Web Interface](https://github.com/openwrt/luci): Modern and modular
interface to control the device via a web browser.
### Flash Openwrt

* [OpenWrt Packages](https://github.com/openwrt/packages): Community repository
of ported packages.
#### a. Use `U-boot` to flash

* [OpenWrt Routing](https://github.com/openwrt/routing): Packages specifically
focused on (mesh) routing.
Download [`openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi`](https://github.com/hzyitc/openwrt-redmi-ax3000/releases/latest/download/openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi) and put it into TFTP root.

## Support Information
Then run the following command inside `U-boot`:

For a list of supported devices see the [OpenWrt Hardware Database](https://openwrt.org/supported_devices)
```shell
# This router ip
setenv ipaddr 192.168.1.2
# TFTP server ip
setenv serverip 192.168.1.1

### Documentation
# Download the firmware to the RAM
tftpboot openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi

# Flash it as system 2
flash rootfs_1
setenv flag_try_sys2_failed 0
setenv flag_boot_rootfs 1
setenv flag_last_success 1
saveenv

# Flash it as system 1
# flash rootfs
# setenv flag_try_sys1_failed 0
# setenv flag_boot_rootfs 0
# setenv flag_last_success 0
# saveenv

# Reboot
reset
```

#### b. Use `miwifi` (the vendor firmware) to flash

```bash
cd /tmp
wget https://github.com/hzyitc/openwrt-redmi-ax3000/releases/latest/download/openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi

# Check your partition table
# cat /proc/mtd
[[ "$(grep '"rootfs"' /proc/mtd | cut -d':' -f1)" == "mtd18" ]] || exit
[[ "$(grep '"rootfs_1"' /proc/mtd | cut -d':' -f1)" == "mtd19" ]] || exit

# Detect the current system slot and flash into the other one
# cat /proc/cmdline
mtd="$(grep -oE 'ubi.mtd=[a-zA-Z0-9\-\_]*' /proc/cmdline | cut -d'=' -f2)"
if [[ "$mtd" == "rootfs" ]]; then
# Flash it as system 2
ubiformat /dev/mtd19 -f openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi
nvram set flag_try_sys2_failed=0
nvram set flag_boot_rootfs=1
nvram set flag_last_success=1
nvram commit
else if [[ "$mtd" == "rootfs_1" ]]; then
# Flash it as system 1
ubiformat /dev/mtd18 -f openwrt-ipq50xx-arm-redmi_ax3000-squashfs-nand-factory.ubi
nvram set flag_try_sys1_failed=0
nvram set flag_boot_rootfs=0
nvram set flag_last_success=0
nvram commit
fi

# Reboot
reboot
```
* [Quick Start Guide](https://openwrt.org/docs/guide-quick-start/start)
* [User Guide](https://openwrt.org/docs/guide-user/start)
* [Developer Documentation](https://openwrt.org/docs/guide-developer/start)
* [Technical Reference](https://openwrt.org/docs/techref/start)
## Related links
### Support Community
[`openwrt/openwrt`](https://github.com/openwrt/openwrt) - Openwrt official repository
* [Forum](https://forum.openwrt.org): For usage, projects, discussions and hardware advise.
* [Support Chat](https://webchat.oftc.net/#openwrt): Channel `#openwrt` on **oftc.net**.
[`qsdk`](https://git.codelinaro.org/clo/qsdk) - QSDK official repository
### Developer Community
[`quic/qca-sdk-nss-fw`](https://github.com/quic/qca-sdk-nss-fw) - NSS firmware
* [Bug Reports](https://bugs.openwrt.org): Report bugs in OpenWrt
* [Dev Mailing List](https://lists.openwrt.org/mailman/listinfo/openwrt-devel): Send patches
* [Dev Chat](https://webchat.oftc.net/#openwrt-devel): Channel `#openwrt-devel` on **oftc.net**.
[`quic/upstream-wifi-fw`](https://github.com/quic/upstream-wifi-fw) - WiFi firmware
## License
[`qca/qca-swiss-army-knife`](https://github.com/qca/qca-swiss-army-knife) - BDF tools
OpenWrt is licensed under GPL-2.0
[`Telecominfraproject/wlan-ap`](https://github.com/Telecominfraproject/wlan-ap) - another Openwrt which support `ipq50xx`

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