Hi sorry for delay, been offline for few days.

If you still have the previous device I would not go through ecash recovery at all.

1. Install on new device, add mints

2. Move your balances by sending ecash to your random wallet address on new device (it might be too much data for qr code)

3. Go to Backup and recovery, enter your seed from the old phone to Recover wallet address

4. Uninstall Minibits from old device

That should do the trick with min pain.