Fujitsu Lifebook Ah531 Drivers 'link' -

| Issue | Likely Fix | |-------|-------------| | Unknown Device in Device Manager | Missing FUJ02E3 driver. Download from Fujitsu support. | | Function keys (brightness/volume) not working | Install Hotkey Support + FUJ02E3. Reboot. | | Wi-Fi not working on Win10 | Try Win7 driver in compatibility mode or replace with an Intel 7260 card (whitelist check may be needed). | | No audio after sleep | Disable “Allow the computer to turn off this device” for Realtek Audio in Power Management. | | Webcam shows black image | Reinstall webcam driver; disable Lenovo/other vendor camera apps. |