Most of the error messages mentioned below are caused by the incorrect entry of your license details. When entering your ESET-issued Username and Password, please keep the following in mind:
If your error code starts with a 10 (for example, 10401001), you are experiencing a temporary problem caused by connection issues. We recommend that you try again later.
Your license has expired, you must renew your license to keep your device protected.
You have entered an incorrect product license type. Check to be sure that you have entered the license for ESET Mobile Security. To use the full version of ESET Mobile Security, you must purchase an ESET Mobile Security license.
You have entered an incorrect license key. Re-enter your License key.
This error occurs if there is a problem with your phone's internet connectivity. When activating, be sure that your phone connects directly to the internet and not through a proxy server that requires additional authentication. This error can also occur on Android tablets. Tablet users who attempt to activate with no 3G connection and receive this error may be using a tablet / Android version that is not compatible with ESET Mobile Security for Android.
This error occasionally occurs when attempting to contact ESET license servers. Please try to activate it later.
You will receive this error message when you enter an invalid Username or Password during activation.
This error occurs when you have more than one active license and it is not clear which one should be activated. We recommend you to contact ESET technical support.
This error occurs due to one of the following reasons:
This error occurs very occasionally when processing the activation request. Please try to activate later.
This error occurs when you try to activate ESET Mobile Security for Android using an Activation key, but do not include the hyphens (for example, 1234-5768-9012-3456-7890 should be entered with the hyphens included). If you receive this error, tap Retry and enter your Activation Key again, this time with the hyphens included (click to view a screenshot).
You will see this error if you attempt to activate using a license that has exceeded its allowed number of activations.