Hey Guys, I posted the earlier, piggy-backed on another thread, and didn't get any responses. Thought I'd try it out here. I have a Nexus 4 with Jellybean 4.2.1 - no root. I exported a websites' security certificate from my PC (using Chrome) then moved the .cer (X509 DER) file to the root folder on my "SD" card. I went into settings/security/install from storage. I get a pop-up identifying the certificate available to install. I click install and it says "install complete". Then I go into "Trusted Credentials" and the new certificate isn't there in the "System" or "User" installed certificates. I tried an application called "Android Certificate Installer" from the Play Store and it didn't help. While I can still browse the website, I can't download files from it. I tried the process after uninstalling my launcher (Nova) and security apps (AVG and Lookout) and it didn't help. I did this process with my Motorola Droid X with Gingerbread (2.3.6) several months ago and it worked without incident. Any ideas for a fix? Anyone have this problem? Has anyone successfully installed user certificates on their Nexus 4?