Hi @default1ogd49mgq02x
If you are a paid subscriber to Lightroom Mobile Premium, your images and presets should sync to cloud storage and be available on any mobile device -- just be sure to sign into the same account on your newer device.
If you are a user of the free app, presets and images do not sync to cloud storage. The only way to recover files that existed only on your previous device would be to somehow restore a backup of that device -- I understand this may not be possible. You would then need to import those presets again on your new device -- please contact the vendor that sold you the presets for help obtaining them again if needed.