Before updating system firmware, please make sure the product model and firmware version are correct. Follow the steps below to update firmware:

Update by QNAP VioStor (or NVR)

1. Download the release notes of the same version as the firmware from QNAP Security website http://www.qnapsecurity.com/. Read the release notes carefully to make sure you need to upgrade the firmware.
2. Before upgrading system firmware, back up all disk data on the server to avoid any potential data loss during system update.
3. Login your VioStor (NVR) system configuration page.
4. Click "System Tools" -> "System Update".
5. Click the [Browse…] button to select the correct firmware image for system update. Click [Update System] to update the firmware.

Update by QNAP Finder

1. Download the release notes of the same version as the firmware from QNAP Security website http://www.qnapsecurity.com/. Read the release notes carefully to make sure you need to upgrade the firmware.
2. Before upgrading system firmware, back up all disk data on the server to avoid any potential data loss during system update.
3. Click "Tools" > "Update Firmware".
   
4. Enter the administrator name and password.
   
5. You can upgrade the firmware of one to multiple servers simultaneously.
   

System update may take several minutes to complete depending on the network connection status. Please wait patiently. The system will inform you when system update is completed.

When performing system update, please make sure the power supply is at steady state. Failed to do so may cause the system unable to start up.

Note: If the system is running properly, you do not need to update the firmware.
QNAP is not responsible for any forms of data loss caused by improper or illegal system update.