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REG Linux device image

HardKernel ODROID XU3/XU4

HardKernel ODROID XU3/XU4 pairs the Samsung Exynos 5422 SoC with the REG Linux stack for a polished retro console. pairs the Samsung Exynos 5422 SoC with the REG Linux stack for a polished retro console.

More HardKernel devices Official board page
  • Manufacturer: HardKernel
  • SoC: Samsung Exynos 5422
  • Maintained on the REG Linux download channel
HardKernel ODROID XU3/XU4
HardKernel ODROID XU3/XU4 running REG Linux.

Hardware specifications

Built for HardKernel

REG Linux targets this hardware profile so you can flash and play without manual tweaking.

Manufacturer

HardKernel

SoC

Samsung Exynos 5422

Image availability

Download the latest build from the REG Linux downloads hub (HardKernel section).

Install notes

Flash HardKernel ODROID XU3/XU4 and boot

Follow the workflow below; the official board page contains any extra quirks for the Samsung Exynos 5422 platform.

  1. Grab the image. Download the latest HardKernel ODROID XU3/XU4 build from the downloads page or the official board entry.
  2. Flash to storage. Use balenaEtcher, Raspberry Pi Imager, or `dd` to write the image to an SD card or SSD. Make sure to verify the checksum before booting.
  3. First boot setup. Insert the media into your HardKernel ODROID XU3/XU4, power on, and let REG Linux expand the filesystem. Pair controllers inside EmulationStation once prompted.
  4. Troubleshoot with rescue tools. REG Linux ships with an immutable base and rescue partition—if something breaks, reboot into rescue or reflash without touching your ROMs.

Board family guidance

Samsung Exynos 5422

The Samsung board tree powers the ODROID XU3/XU4 (Exynos 5422) with kernel configs, patches, overlays, and bootloader wiring.

SoCs tracked: Exynos 5422

What to keep in mind

  • Kernel configs (linux-exynos5422-defconfig) and patches tune LZ4 compression, REG Linux branding, preemption, and DRM/HID quirks for the ODROID platform.
  • Board scripts stage zImage, DTBs, initrd, modules, firmware, rescue data, and U-Boot blobs before `genimage` creates FAT32 boot + userdata partitions with the proper `extlinux.conf` command line.
  • Overlays install `asound.conf`, fan scripts, and patch sets for Sugarbox/SwitchRes; the integration tips remind maintainers to build U-Boot, stage artifacts, and document overlay/cmdline changes.

Learn more

Drill into the wiki board entry for scripts, overlays, and developer reminders.

View wiki guide

Need a refresher?

Cross-check kernel notes, device trees, or wiring tips on the HardKernel ODROID XU3/XU4 board page.

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