You're looking for information on the Airis Kira N9000 firmware!
series. This is often the preferred choice for enthusiasts looking to make the device more functional. Technical Specifications airis kira n9000 firmware
Once the process is finished, the device may reboot automatically or prompt you to remove the SD card and restart. Alternative: Kirbian Linux If you are looking for a more modern experience, the Kirbian project You're looking for information on the Airis Kira
Warning: Avoid random “firmware download” websites that ask for credit card info or offer “universal” firmware files. They are often malware or corrupted files. Wait for first boot (may take several minutes)