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# Resource Download

## Official Bootloader and System Image

### SPL Loader

- [Loader: RK356x_SPL_Loader_v1.10.111.bin](https://dl.radxa.com/rock3/images/loader/radxa-cm3-io/rk356x_spl_loader_ddr1056_v1.10.111.bin)

### SPI Images

- [SPI Image](https://dl.radxa.com/rock3/images/loader/radxa-cm3-io/radxa-cm3-io-spi-image-g8684d740b9f.img.gz)

### System Images

Debian OS:

- System Image: [Radxa CM3 IO Bookworm KDE](https://github.com/radxa-build/radxa-cm3-io/releases/download/rsdk-r2/radxa-cm3-io_bookworm_kde_r2.output_512.img.xz)

- System Image: [Radxa CM3 With Raspberry CM4 IO Bookworm KDE](https://github.com/radxa-build/radxa-cm3-rpi-cm4-io/releases/download/rsdk-r2/radxa-cm3-rpi-cm4-io_bookworm_kde_r2.output_512.img.xz)

Android:

- [Radxa_CM3_Android11-rkr12-20240719-gpt.zip](https://github.com/radxa/manifests/releases/download/android11-radxa-20240719/Radxa_CM3_Android11-rkr12-20240719-gpt.zip)

## Baidu Netdisk Download

:::tip
The Baidu Netdisk share link is updated periodically. It is recommended to download the latest image via Baidu Netdisk.

**Version Note:**
- **R Version**: Tested stable version, recommended.
- **T Version**: Test version (for evaluation only).
:::
- [Baidu Netdisk Download (radxa-cm3-io)](https://pan.baidu.com/s/56vG8RCxe-5T_27AWQcREGA#list/path=%2Fsharelink3108273493-988411983016443%2Fimage-release%2Fradxa-cm3-io&parentPath=%2Fsharelink3108273493-988411983016443)
- [Baidu Netdisk Download (radxa-cm3-rpi-cm4-io)](https://pan.baidu.com/s/56vG8RCxe-5T_27AWQcREGA#list/path=%2Fsharelink3108273493-988411983016443%2Fimage-release%2Fradxa-cm3-rpi-cm4-io&parentPath=%2Fsharelink3108273493-988411983016443)
- [Baidu Netdisk Download (radxa-cm3-sodimm-io)](https://pan.baidu.com/s/56vG8RCxe-5T_27AWQcREGA#list/path=%2Fsharelink3108273493-988411983016443%2Fimage-release%2Fradxa-cm3-sodimm-io&parentPath=%2Fsharelink3108273493-988411983016443)

## Third Party Images

- [Radxa CM3 IO OpenWrt](https://firmware-selector.openwrt.org/?version=SNAPSHOT&target=rockchip%2Farmv8&id=radxa_cm3-io)
- [Radxa CM3 IO OpenWrt ext4 sysupgrade Image](https://downloads.openwrt.org/releases/25.12.0/targets/rockchip/armv8/openwrt-25.12.0-rockchip-armv8-radxa_cm3-io-ext4-sysupgrade.img.gz)
- [Radxa CM3 IO OpenWrt squashfs sysupgrade Image](https://downloads.openwrt.org/releases/25.12.0/targets/rockchip/armv8/openwrt-25.12.0-rockchip-armv8-radxa_cm3-io-squashfs-sysupgrade.img.gz)

## Hardware Design

- Datasheet

[Radxa CM3 Datasheet](https://dl.radxa.com/cm3/docs/radxa_cm3_datasheet.pdf)

- Schematic

[Radxa CM3 V1.31 Schematic](https://dl.radxa.com/cm3/docs/hw/RADXA_CM3_V1.31A_SCH_20221010.pdf)

[Radxa CM3 V1.321 Schematic](https://dl.radxa.com/cm3/docs/v1.321/radxa_cm3_v1.321_schematic.pdf)

[Radxa CM3 V1.322 Schematic](https://dl.radxa.com/cm3/docs/v1.322/radxa_cm3_v1.322_schematic.pdf)

[Radxa CM3 IO Board V1.32 Schematic](https://dl.radxa.com/cm3/io_board/radxa_cm3_io_board_v1.32_schematic.pdf)

[Radxa CM3 IO Board V1.33 Schematic](https://dl.radxa.com/cm3/io_board/SCH_CM3_IO_V1.33_20230223.pdf)

[Radxa CM3 IO Board V1.34 Schematic](https://dl.radxa.com/cm3/io_board/SCH_CM3_IO_V1.34_20230717.pdf)

[Radxa CM3 IO Board V1.35 Schematic](https://dl.radxa.com/cm3/io_board/SCH_CM3_IO_V1.35_20240119.pdf)

[Radxa CM3 IO Board V1.36 Schematic](https://github.com/radxa/radxa-som-projects/blob/main/cm3/radxa-cm3-io-board-v1360/radxa_cm3_io_board_v1360_schematic.pdf)

[Revision history between different versions](https://dl.radxa.com/cm3/io_board/revision_history)

- Components Placement Map

[Radxa CM3 V1.31 Components Placement Map](https://dl.radxa.com/cm3/docs/hw/RADXA_CM3_V1.31A_CAM_20220526.pdf)

[Radxa CM3 V1.321 Components Placement Map](https://dl.radxa.com/cm3/docs/v1.321/radxa_cm3_v1.321_components_placement_map.pdf)

[Radxa CM3 V1.322 Components Placement Map](https://dl.radxa.com/cm3/docs/v1.322/radxa_cm3_v1.322_components_placement_map.pdf)

[Radxa CM3 IO Board V1.32 Components Placement Map](https://dl.radxa.com/cm3/io_board/radxa_cm3_io_board_v1.32_components_placement_map.pdf)

[Radxa CM3 IO Board V1.33 Components Placement Map](https://dl.radxa.com/cm3/io_board/CM3_IO_V1.33_20230214_components_placement_map.pdf)

[Radxa CM3 IO Board V1.34 Components Placement Map](https://dl.radxa.com/cm3/io_board/CM3_IO_V1.34_20230718_components_placement_map.pdf)

[Radxa CM3 IO Board V1.35 Components Placement Map](https://dl.radxa.com/cm3/io_board/CM3_IO_V1.35_20231013_components_placement_map.pdf)

[Radxa CM3 IO Board V1.36 Components Placement Map](https://github.com/radxa/radxa-som-projects/blob/main/cm3/radxa-cm3-io-board-v1360/radxa_cm3_io_board_components_placement_map_v1360.pdf)

- 2D Drawing

[Radxa CM3 IO Board V1.1 2D DXF](https://dl.radxa.com/cm3/io_board/CM3_IO_V1.1_2D_dxf_20211208.zip)

- GENERAL PARAMETERS OF THE PCB DESIGN

[B2B Connector Param](https://dl.radxa.com/cm3/io_board/radxa_cm3_io_board_b2b_connector_20230718.asc)

- 3D Drawing

[Radxa CM3 V1.31 3D](https://dl.radxa.com/cm3/docs/hw/radxa_cm3_pcba_3d.stp.zip)

- Core Board Connector PINOUT

- [Radxa CM3 V1.3 Pinout](https://dl.radxa.com/cm3/docs/radxa_cm3_v1.3_pinout.xlsx)

- [Radxa CM3 V1300 To V1320 Pinout](https://dl.radxa.com/cm3/docs/radxa_cm3_v1300_to_v1320_pinout.xlsx)

- [CM3 IO Board Design Files](https://github.com/radxa/radxa-som-projects/tree/main/cm3)

## Quality certification

- [AU RCM](https://dl.radxa.com/cm3/compliance/AU_RCM/)

- [CA IC ID](https://dl.radxa.com/cm3/compliance/CA_IC%20ID/)

- [FCC ID](https://dl.radxa.com/cm3/compliance/FCC%20ID/)

- [JP TELEC](https://dl.radxa.com/cm3/compliance/JP_TELEC/)

- [RED](https://dl.radxa.com/cm3/compliance/RED/)

- [SG_IMDA](https://dl.radxa.com/cm3/compliance/SG_IMDA/)

- [HK OFCA](https://dl.radxa.com/cm3/compliance/HK_OFCA.pdf)

- [PH NTC](https://dl.radxa.com/cm3/compliance/PH_NTC.pdf)

- [SA ICASA](https://dl.radxa.com/cm3/compliance/SA_ICASA.pdf)

- [TH NBTC](https://dl.radxa.com/cm3/compliance/TH_NBTC.pdf)
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Debian:

- Radxa CM3 IO Board 系统镜像: [Radxa CM3 IO Debian b27](https://github.com/radxa-build/radxa-cm3-io/releases/download/b27/radxa-cm3-io_debian_bullseye_kde_b27.img.xz)
- Radxa CM3 IO Board 系统镜像: [Radxa CM3 IO Bookworm KDE](https://github.com/radxa-build/radxa-cm3-io/releases/download/rsdk-r2/radxa-cm3-io_bookworm_kde_r2.output_512.img.xz)

- Radxa CM3 + RPI CM4 IO Board 系统镜像: [Radxa CM3 With Raspberry CM4 IO Debian b15](https://github.com/radxa-build/radxa-cm3-rpi-cm4-io/releases/download/b15/radxa-cm3-rpi-cm4-io_debian_bullseye_kde_b15.img.xz)
- Radxa CM3 + RPI CM4 IO Board 系统镜像: [Radxa CM3 With Raspberry CM4 IO Bookworm KDE](https://github.com/radxa-build/radxa-cm3-rpi-cm4-io/releases/download/rsdk-r2/radxa-cm3-rpi-cm4-io_bookworm_kde_r2.output_512.img.xz)

Android:

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