I am experiencing an issue with my lab submission. I accidentally pasted incorrect information into a locked cell that does not allow editing, and I am now unable to remove or correct it. When I submit the lab, I receive a grade of 0 with the following error message: “Comment line with index: UNQ_…

Hope this helps: [image] Downloading your Notebook, Downloading your Workspace and Refreshing your Workspace News and Announcements There might be some instances where you want to download your notebooks or workspace, or refresh your workspace to start from sc…

Hi, Thank you for the guidance. I have already followed the steps outlined in the “Downloading your Notebook,” “Downloading your Workspace,” and “Refreshing your Workspace” instructions, including resetting the workspace and reloading the latest version of the lab. However, the issue is still not…

You’ll get a fresh notebook that resembles the starter code after resetting the workspace. Mentors don’t have access to your workspace. Did you remove the assignment notebook before refreshing the workspace?

Have you re-named your notebook ipynb file? That will cause problems, because the grader always uses the notebook with the original file name. It does not matter what notebook you have open when you click on the Submit button. [image] Duduzile_Mthethwa: I accidentally pasted incorrect informat…

I only renamed the notebook. Am I supposed to delete the assignment notebook before refreshing the workspace?

Renaming the notebook before refreshing the workspace is sufficient. Adding @Mubsi

Issue with Lab Submission – Unable to Edit Locked Cell

Course Q&A Deep Learning Specialization Sequence Models

balaji.ambresh April 17, 2026, 8:54am 2

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Issue with Lab Submission – Unable to Edit Locked Cell

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