How to restore non provisioned dashboards from grafana.db

I have used HELM to install Grafana, and added a dashboard there using GUI, the HELM installation was deleted due to some ingress issues, and I am looking for a way to restore the dashboards from the Persistent volume. I found the contents in Azure File share, and one of the files was grafana.db - is there a way to restore the last dashboards from this.

I tried attaching the old PV (retain mode) to the new PVC by specifying the volume name, but it isn’t getting bound