Overview
This guide explains how to install device certificates for users using device certificates on iOS or iPadOS.
Notes
- This article is based on the product specifications as of February 2025 and may be subject to change without notice.
- There may be slight differences in the screens displayed depending on the device or OS version used.
- If an error occurs during the certificate installation, please refer to the following article for troubleshooting steps.
Error Message List HENNGE Device Certificate (iOS / iPadOS)
Procedure
1. Open the notification email for installing the HENNGE Device Certificate.
* The certificate installation email will be sent from the address noreply@ssso.hdems.com.
2. Tap the URL listed under [Step] in the notification email.
3. Tap [Allow] on the popup that says [This website is trying to download a configuration profile. Do you want to allow this?].
※ If "Stolen Device Protection" is enabled on iOS 17.3 or later, the installation may fail.
To install the profile, disable "Stolen Device Protection" and repeat the process from step 2.
It takes 1 hour for "Stolen Device Protection" to be available for disabling.
Please refer to the following for information on disabling "Stolen Device Protection":
https://support.apple.com/en-us/120340 (External Link)
4. Tap [Close] on the popup that says [Profile Downloaded].
5. Open the [Settings] app.
6. Tap [General] - [VPN & Device Management] - [Cybertrust Profile Service] - [Install].
7. Tap [Install] several times on the subsequent screens.
※ Depending on the settings, you may be asked for a password during the process.
※ If a warning screen appears, tap [Install].
8. When the [Profile Installed] screen is displayed, tap [Done].
※ The "Cybertrust Profile Service" profile will be renamed to "HENNGE Device Certificate" after installation.
9. Tap [General] - [About] - [Certificate Trust Settings].
10. Select the following profile installed in step 8 and tap [Continue] on the confirmation screen to activate it.
※ If the root certificate is not displayed, skip this step.
※ Enable "Stolen Device Protection" as needed.
https://support.apple.com/en-us/120340
- Cybertrust DeviceiD Public CA G2
- Cybertrust DeviceiD Public CA G3h
- Cybertrust DeviceiD Public CA G4h
The installation of the device certificate is now complete.
When logging into HENNGE using the certificate after installing the device certificate, please tap the [Log in with Device Certificate] button when the following login screen is displayed to proceed with the login.