This guide is for informational purposes only. Vodafone (formerly Arcor) has locked the Easybox 804 down tightly. There are no official "custom firmware" options (like OpenWrt or DD-WRT) available for this specific model due to hardware limitations and locked bootloaders. Attempting to force third-party firmware can permanently "brick" (destroy) your device.
Look for hostapd.conf or similar inside the firmware filesystem. easybox 804 firmware
If you need to flash the firmware manually—perhaps because an automatic update failed—follow these steps: This guide is for informational purposes only