@Willie Jiang -
Assuming your friend is on a paid plan they should be able to backup the boards you created (download board backup option from the export menu) which will generate separate RTB files which you can then restore to a team within your new paid subscription.
Kiron
Thanks for answering it.
YES, my friend told me the board was still there on his side.
Another issue
Once I left Ilia’s “Team”, my subscription seems to be gone.
What should I do now? Pay for it again? Would I get charged twice?
@Willie Jiang -
You subscription should still be valid so it is likely just a user account issue which Miro support should be able to help with. Open a support ticket here: Submit a request – Miro Support & Help Center
Kiron