Jorge1964 Posted December 25, 2020 Share Posted December 25, 2020 Hi I have installed Catalina on my Latitude 3400. I've used open core. Now I want to update to BigSur. When I try to update using the system software update, I am caughted in a loop. The system downloads BigSur, and starts the installation. When it says it's going to restart it gets back to Catalina. Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted December 25, 2020 Administrators Share Posted December 25, 2020 make sure to select the installer when it reboots. your nvram might not be fully working so it defaults to booting catalina Link to comment Share on other sites More sharing options...
Jorge1964 Posted January 26, 2021 Author Share Posted January 26, 2021 The systems does not give me an option to choose the installer, it reboots to Catalina. How do i fix the NVRAM, so that my system reboots to the installer ? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted January 26, 2021 Moderators Share Posted January 26, 2021 Make sure you have upgraded to the latest OC. At OC Picker, press spacebar, this will show you the Reset NVRam option. Click on that to reset your NVRam. Link to comment Share on other sites More sharing options...
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