Versions 3.5, 3.5.1, and 3.5.2 of the mobilEcho iOS app use an encrypted database to manage the files stored within the mobilEcho app's on-device storage. The information required to access this database is stored in the iOS keychain. For security reasons, mobilEcho's keychain items are not restored to the new device during the backup and restore process.
When this method of backup and restore to a new device is performed with a device that has mobilEcho 3.5, 3.5.1, or 3.5.2 installed and configured, the keychain item required to open the encrypted file database is not restored to the new device. This causes mobilEcho to be unable to access the restored file database and the on-device files it manages.
A workaround for this limitation of the 'backup and restore to new device' process will be included in mobilEcho 3.5.3, and all future versions of mobilEcho.
To work around this mobilEcho / iOS backup and restore situation:
1. Backup any needed local files to a server-based location before moving to your new device.
When Backing up and restoring you should get the files in "My Files" preserved if the management profile allows. Sync content will be re-downloaded. Files in the Inbox will not be preserved.
2. Remove mobilEcho from the new device, reinstall, and reconfigure.