Answer：This issue is often caused by a mismatch between the region you selected for your Roborock App account during registration and the mower's actual sales region.
When the account region and the mower region are not compatible, the app may display "Unknown Device Type" during the pairing process.
How to check:
- Open Roborock App → Profile.
- Check the Region displayed in your account.
- Verify whether the account 'Region' matches the mower's sales region.
- If the regions do not match (for example, you purchased and used your mower in the UK, but your Roborock account registered in USA), then you need to create a new account with the correct local region (UK) and try to pair with the mower again.