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Extra battery for U400
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34
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1867
|
August 12, 2026
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Aqara Smart Lock U400 – About The Next Firmware（Jul 29)
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179
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9684
|
August 11, 2026
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U400 + iPhone 15: UWB works for some time only
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13
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213
|
August 10, 2026
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Unable to remote config U400
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3
|
80
|
August 7, 2026
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Aqara Smart Lock U400 Pairing Guide
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5
|
211
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August 6, 2026
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My Matter over Thread Smart Home Stack - How It All Works Together
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14
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1103
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July 30, 2026
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📣 Updated | Shape the Next Gen! Share Your Feedback on the Aqara U200 & U400 Smart Locks
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26
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652
|
July 30, 2026
|
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One of three U400 slow to respond to UWB
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10
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152
|
July 26, 2026
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UWB not working with my U400 & Apple Watch Ultra 2
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2
|
69
|
July 16, 2026
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U400 Review - amazing door lock
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1
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52
|
July 16, 2026
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U400 - Chance of future support for iPhone hands-free unlocking without Apple hub?
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2
|
97
|
July 15, 2026
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U400 deadbolt error
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3
|
88
|
June 16, 2026
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U400 - Troubleshooting Calibration Issue
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3
|
308
|
June 15, 2026
|
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U400 constantly goes unresponsive in HomeKit
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9
|
164
|
June 11, 2026
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Smart Lock U400 with 2 Batteries — Now Available on Apple
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8
|
284
|
June 11, 2026
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Possible locking issue with the U400 if door is left open for longer than 10 minutes
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4
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181
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June 4, 2026
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How can I set a regular password/passcode in a U400?
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1
|
43
|
May 18, 2026
|
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Updating U400 Firmware
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3
|
473
|
May 15, 2026
|
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Smart Lock U400 Launch – Forum Exclusive Limited Codes!
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381
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6453
|
May 3, 2026
|
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Bug (?) when using Aqara app U400 auto-lock feature
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2
|
62
|
May 3, 2026
|
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U400 SmartLock Won’t Open
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3
|
133
|
April 26, 2026
|
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Aqara U400 is now Aliro-certified!
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9
|
415
|
April 22, 2026
|
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Aqara U400 review: HomeKit’s futuristic smart lock has arrived - 9to5Mac
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0
|
33
|
April 20, 2026
|
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When will the U400 Deluxe Kit Be Available For Purchase In the U.S.?
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9
|
842
|
April 16, 2026
|
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U400 auto-lock calibration doesn’t work
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|
8
|
140
|
April 14, 2026
|
|
G410 as Thread Border Router in Home Assistant - Without Apple Home
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2
|
232
|
April 13, 2026
|
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Lock won’t function / firmware doesn’t update
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2
|
77
|
April 13, 2026
|
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Aqara Smart Lock U400 Now Supports Samsung Wallet Digital Home Key!
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6
|
1017
|
April 12, 2026
|
|
Guide: Setting Up Your Aqara Smart Lock U400
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|
35
|
7629
|
April 9, 2026
|
|
Lock performance difference between Deluxe and Standard U400
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|
1
|
201
|
April 5, 2026
|