Error code: 10 / Serial number is invalid

Symptom

An error message "SN (a serial number) is invalid. (Error code: 10)" pops up, after clicking the "Activate Button" in License Management Tool.

當啟用序號時跳出錯誤訊息 "序號 (xxxx-xxxx-xxxx-xxxx)無效. (錯誤代碼:10)"

Cause 

1. The license is not found in our license server.
    此序號不存在於NUUO的序號伺服器

2. The license does not exist or there is a typo. Please note that the license is 4 set Hexadecimal number such as xxxx-xxxx-xxxx-xxxx. NOT the product SN (ex:NT-8040-AY0.XXXXXXXXX). You have to purchase product license from your region sales.
    您輸入的序號可能有誤，請注意序號組成為四組4位元英數文字，並非您硬體上的硬體序號 (如:NT-8040-AY0.XXXXXXXXX)，請聯繫您所在區域的業務窗口以購買序號，謝謝。

Solution

1. Kindly re-check your serial number again and/or type it properly.
    請再次檢查您輸入的序號是否正確。

2. If the issue still persists, please contact us at [e-mail] .
    如問題仍無法解決，請透過email信箱 [e-mail] 聯繫我們，謝謝。