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BlackBerry® OS Smartphones

New Contributor
Posts: 3
Registered: ‎09-18-2010
My Device: Blackberry Curve 8530
My Carrier: Boostmobile

"server's certificate is not trusted"

I have a Blackberry Curve 8530, been happy with it, that's why I still have it.  Recently, I updated something in an app settings, and now whenever I get an email, the message "you are trying to open a secure connection, but the server's certificate is not trusted" comes up and I have to select "open, close, etc." before I can open the email.  I don't know what app controls this, but I want to reverse what I might have done to start it in the first place.  Help!

Elite II
Posts: 7,974
Registered: ‎06-01-2012
My Device: Curve
My Carrier: BSNL

Re: "server's certificate is not trusted"

Hello Kenettek



First try those steps in a sequence :


1- Register your Handheld .

  • KB00510 : How to register a BlackBerry smartphone with the wireless network
  • Wait till a Registration messages comes in your message box.

2- Delete and Resend your Service Book

  • KB05000 : Delete the service book for the BlackBerry Internet Service email account from the BlackBerry smartphone
  • KB02830 : Send the service books for the BlackBerry Internet Service
  • ( Wait till a Registration Message comes in your message box for each email that you have configured on your device )

3-  Then perform a battery pull restart like this while the device is powered On remove your battery wait for a min. then reinsert it back


Try it and see if problem resolves. If error still appear then try this Knowledge Base :


KB15204 : Wi-Fi enabled BlackBerry smartphone prompts the user to trust a new BlackBerry certificate when connecting


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