Error message "Failed to write activation timestamp"

This error message is displayed when the activation process was not successful. Since the femSense app update to version 2.2.3, the activation process now consists of two steps, each marked with a vibration when it was successful. The first vibration confirms that the Patch has been recognised. The second vibration confirms the actual activation of the Patch.

When you remove your smartphone before the second vibration, you will receive this error message. Simply confirm the message, try again and wait for the second vibration to remove your smartphone.