Hi Sean,
1. I would use the Welcome App, this will revert the radio to factory defaults, and it will delete all existing files like logs, batteries etc.
If you registered your radio before, and if it wrote out files to your cloud, you can delete those there, too.
Basically, I'd start over.
Apps can be re-installed (all free ones). If you use Auto Install Notification, the radio will prompt you if Apps are required but not installed yet, e.g. for telemetry items.
If the radio had the Pro Bundle installed, it may be necessary to re-enable them. Please contact service (at) mikado-heli (dot) de if in doubt, and we can check.
2. I'm not sure if copying the files from one radio to the other will work, but worth a try. If not, you can still delete the files again.
Kind regards
Eddi
Born to fly ...
forced to work.