How can I change my PIN? Marco March 04, 2022 19:57 Updated After you login to your Oneblinc checking account, scroll down and click on "Bank Account Settings." Then click on "Update Code" to update your PIN. You will need to confirm your password before updating your PIN. Related articles Where can I see more information about my Oneblinc checking account? Where can I find my OneBlinc checking account routing number and account number? What is my daily purchase limit? I forgot my password. What do I do? Why do I need to connect my bank account with Plaid? Comments 0 comments Please sign in to leave a comment.