To ensure a safe upgrade and avoid "bricking" the device, follow these steps: VDSL2/ADSL2+ Wireless N300 4-port router DSL-224 - D-Link
Versions 3.0.8, 3.0.7, and 3.0.5 were released between 2019 and 2021. Beta/Hotfix Releases: dlink dsl224 firmware
Flip your router over and check the sticker for the "H/W Ver" (e.g., V1, R1). You must download firmware that matches this specific version to avoid bricking the device. Wired Connection: To ensure a safe upgrade and avoid "bricking"