Roborock S8 Pro Ultra (S81USP) how to reset the WiFi connection
When the robot cannot connect to the app or must be added as a new device.
Steps
- Open the top cover and find the WiFi indicator.
- Press and hold the Mop Only button and the Dock button until you hear the "Resetting WiFi" voice alert.
- Check that the WiFi indicator flashes slowly; the reset is complete and the robot waits for a connection.
- Open the Roborock app and tap "Scan to Connect", or open the Mi Home app, tap "+" in the top right corner and add the device as instructed in the app.
Only 2.4 GHz WiFi is supported. If the robot waits more than 30 minutes for a connection, WiFi is disabled automatically; reset the WiFi again before reconnecting.
Source: Connecting to the App: Reset WiFi Source: Connecting to the App: Reset WiFi, p. 9
Other S8 Pro Ultra (S81USP) procedures
- How to reset the robot systemWhen the robot does not respond to a button press or cannot be turned off.
- How to restore the robot to factory settingsWhen the robot does not work properly after a system reset.
- How to fill the clean water tankBefore mopping.
- How to clean the main brushesEvery 2 weeks.
- How to clean the side brushMonthly.
- How to clean the omni-directional wheelAs required.
- How to empty and clean the dustbinAs required.
- How to clean the washable filterEvery 2 weeks.
- How to clean the VibraRise mop clothAfter each use.
- How to clean the robot sensorsAs required.
- How to clean the charging contactsAs required.
- How to empty and clean the dirty water tankAs required.
- How to clean the high-speed maintenance brushAs required.
- How to clean the water filterAs required.
- How to replace the disposable dust bagWhen the dust bag is full.
Sources
- Roborock S8 Pro Ultra FCC EN User Manual (EN/FR/ES). Beijing Roborock Technology Co., Ltd. Document S81USP, revision Undated download (PDF created 2023-03-14), 15 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 4 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035369132, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 5 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035369172, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 7 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035369212, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 9 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035731551, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 10 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035731571, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 13 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035369312, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- What should I do when error 18 occurs?. Beijing Roborock Technology Co., Ltd. Document Article 360035731631, revision Undated web article, 1 pages, en. support.roborock.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.