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When will the U400 Deluxe Kit Be Available For Purchase In the U.S.?
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9
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419
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April 16, 2026
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Aqara Smart Lock U400 – Latest Firmware V3110（Apr 10)
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158
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5318
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April 16, 2026
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Aqara U400 is now Aliro-certified!
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7
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62
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April 15, 2026
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U400 auto-lock calibration doesn’t work
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8
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56
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April 14, 2026
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G410 as Thread Border Router in Home Assistant - Without Apple Home
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2
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48
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April 13, 2026
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Smart Lock U400 Launch – Forum Exclusive Limited Codes!
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383
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5715
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April 13, 2026
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Lock won’t function / firmware doesn’t update
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2
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41
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April 13, 2026
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Aqara Smart Lock U400 Now Supports Samsung Wallet Digital Home Key!
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6
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456
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April 12, 2026
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Guide: Setting Up Your Aqara Smart Lock U400
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35
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3784
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April 9, 2026
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Lock performance difference between Deluxe and Standard U400
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1
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50
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April 5, 2026
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U400 Review - 2 Weeks with the New Lock
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9
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257
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April 4, 2026
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U400 deadbolt error
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3
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77
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March 31, 2026
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Manual locking the lock
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3
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56
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March 31, 2026
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U400 - Troubleshooting Calibration Issue
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2
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93
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March 31, 2026
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No notifications from U400 lock when door is locked or unlocked
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5
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120
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March 31, 2026
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U400 keeps failing to communicate with hub and BT
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2
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55
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March 31, 2026
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U400 works well but one door can’t tell if it is open
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8
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66
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March 31, 2026
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Freezing Canada.. Which lock always works no matter how cold it gets?
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2
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17
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March 31, 2026
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U400, tailpiece length
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2
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32
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March 31, 2026
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U400 Door Lock small UWB... issue
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21
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428
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March 31, 2026
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U400 goes into endless alert loop and self-unlocks
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2
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18
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March 31, 2026
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Aqara Smart Lock Auto Unlocking From Indoor
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4
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68
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March 31, 2026
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U400 and UWB doesn't unlock when I walk up
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4
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111
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March 29, 2026
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U400 UWB Unlock on Approach Not Working At All
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5
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306
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March 29, 2026
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U400 SmartLock Won’t Open
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2
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58
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March 25, 2026
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Aqara Smart Lock U400 on Android/Home Assistant (Montreal Winter Experience)
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5
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249
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March 24, 2026
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U400 - US release and why it was not released in europe
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10
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848
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March 21, 2026
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U400 Smart Lock: super solid purchase
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6
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131
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March 19, 2026
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Living With Smart Lock U400? We Want Your Story
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68
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3941
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March 19, 2026
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My Matter over Thread Smart Home Stack - How It All Works Together
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8
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365
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March 9, 2026
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