Agilex 7 eFuse programming failed - "certificate is invalid" - Agilex 7 eFuse programming failed - "certificate is invalid" Using Quartus 23.3, I successfully programmed the eFuses on an Agilex 7 FPGA once, but have failed ever since with same and different boards, and the same and different eFuse files. Getting invalid certificate error with no other information. Is this a licensing issue? Our Quartus Prime Pro license is valid. Replies: Re: Agilex 7 eFuse programming failed - "certificate is invalid" Hello, I am writing KDB - Knowledge Dababase so this can be shared with other users. Thank you for your input. regards, Farabi Replies: Re: Agilex 7 eFuse programming failed - "certificate is invalid" "We sincerely apologize for the inconvenience caused by the delay in addressing your Forum queries. Due to an unexpected back-end issue in our system, your Forum cases, along with others, did not get through as intended. As a result, we have a backlog of cases that we are currently working through one by one. Please be assured that we are doing everything we can to resolve this issue as quickly as possible. However, this process will take some time, and we kindly ask for your patience and understanding during this period. The cases will be attended by AE shortly. We appreciate your patience and understanding, and we are committed to providing you with the best support possible. Thank you for your understanding." Replies: Re: Agilex 7 eFuse programming failed - "certificate is invalid" It looks like I missed a step the second time around. I had to load the root.qky file first, then the ccert file to program the eFuses.