If your certificate chain is self-signed, which means that the root signing certificate was generated internally and not signed by a Certificate Authority, you need to import the root certificate into any mobile device to use j5 Mobile. Your root certificate needs to be in the .cer format.
If the certificate was generated using the j5 KeyManager, the KeyManager displays the root signing certificate's location once it has been generated. If you need help to retrieve the root signing certificate, please contact j5 Support.
For iOS devices (iPhones and iPads):
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Transfer the .cer file to the device.
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Select the .cer file, and tap Install.
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Navigate to Settings → General → About → Certificate Trust Settings.
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Under the Enable full trust for root certificates heading, find the installed certificate and mark it as trusted.
For Android and Windows devices, transfer the certificate to the device, select it and tap Install. No further steps are required.