Whole-house smart handover acceptance checklist: Having suffered the loss of 40 devices losing contact at once, these five items were handled one by one on the same day
last month, my cousin's fully furnished apartment was delivered. The renovator used his Redmi AC2100 as a temporary network to set up a network for about forty smart devices in the house. When the technician withdrew, all forty devices were wiped out that night. I had to make a phone call before they were rescued, and three more couldn't be recovered at all. I had to climb ladders and reconfigure them one by one (the process is described in the about router replacement and all smart devices lost contact). After saving me, I spent the whole night reviewing and came to a rather unpleasant conclusion: half the accident was the technician's fault for saving time, and the other half was our own fault—on handover day, we were busy checking the plumbing and electrical and hollow tiles, and no one even touched the smart devices section.
coincidentally, my colleague Lao Zhou's whole-house smart house will be delivered next month. The renovation company has submitted an order for over thirty devices, including door locks, curtains, lighting, and clothes racks. I sent him the list of losses I had made, and accompanied him through the sample process. The following five items are must-have items for the day—don't skimp on any of them.
First: Get the equipment ledger first. Don't wait until the technician leaves to realize you don't even know the model
On the day
handover, the first thing you ask the renovation company isn't a key, but a piece of paper: equipment ledger . Which room has what, what brand, model, and how many units—line by line, everything is clearly listed. After the accident at my cousin's house, I wanted to check what brand that curtain motor was. I searched the whole house but couldn't find a single list. The technician said on the phone, 'Forgot, I think it was called Duya.' That was the only sentence. Later, when I tried to match, I couldn't even fit the search keywords.
you can do the ledger yourself; it's just a ten-minute memo on your phone. The table I made for Old Zhou was five columns: location, equipment, brand and model, quantity, and remarks. The entryway line reads: "Body sensors, Aqara, 2, Zigbee for use"; In the living room, it says 'curtain motor, graffiti model, 1 unit, WiFi powered'; In the bedroom, it says, 'Neutral switch, 3 units. If you want to switch from single neutral to neutral, remember to leave the neutral wire.' If you list the most valuable notes and don't write them on the spot, trying to install the same model six months later but the model doesn't match, it's basically a waste.
besides paper records, the weak current box and each gateway sticker were photographed one by one and stored in an album. The SN code on the back of the multimode gateway and the serial number on the door lock body are the same as the optical modem sticker—repair, unbinding, and secondary pairing all point to it (I wrote about the optical modem at home which stickers to take on the day of installation, same habit).
second thing: ask one question on the spot—whose account are these devices attached
Why is it so difficult to save
cousin's forty units? Because most of the network was the technician his own phone, with the account in his Mi home and the WiFi on his router. Once someone leaves, the account is dead, the WiFi is cut off, and the device is out of reach—everyone becomes orphaned.
so on the day of handover, I asked the technician to hand over the main control of each device in front of him. Mijia's approach is to transfer the home administrator to you, or unbind each device one by one and then bind it again; Owner transfers for graffiti-based properties are also handled within the app. The biggest fear at this step is "going back and doing it later"—once the technician receives the final payment, he only replies to WeChat once every three days. Door locks especially shouldn't be dragged— the lock account is the key . Binding it to someone else's account means your front door electronic key is stuck in a stranger's hands. Fingerprint, password, and NFC are all meaningless. You can still access remotely by unbinding, but if they don't change the password, you still feel uneasy.
inspection method is quite rustic: have the technician open his phone on the spot, and you see that all the lights, locks, and curtains in the device list are gray and can't be clicked, which counts as a complete transaction. Then use your phone to turn on the light and press the door lock; only if it's alive does the bar count.
third thing: unplug the optical modem on the spot and see what you're left after the internet is cut off
the whole home smart that renovation company salespeople talk about is often a completely different thing from the smart home after the internet is cut off. On the day of handover, unplug the optical modem power in front of the technician, wait thirty seconds, test each one, and you'll know which parts of the room are truly smart and which are cloud-smart.
the time Mr. Zhou unplugged the net, the result was this: Zigbee's door and window sensors and human body sensors triggered the "Someone Turn on the Light" without delay, because these linkages are locally stored on the gateway, so Zigbee network can on its own; Physical on/off of ordinary smart switches works fine; the wall lights up as usual. But the WiFi curtain motor went out of service—it was stored in the cloud at a scheduled time, and went silent when the network was disconnected. I experienced this problem on my balcony (I wrote about it in the offline log of three devices on the balcony); When the speaker calls it to turn on the lights, it replies, "Network services are not accessible," waking it up with the local chip, and understanding your speech is the cloud brain. The robot vacuum is surprisingly stable, running locally while cleaning, with only the app remote.
this test isn't about asking you to return the item on the spot, but about giving a clear : where the bottom line of the house is after the internet is cut off, and which scenarios are written on the renovation plan but actually rely on the cloud. If you really care about offline connections, you should choose Zigbee models and gateways with local linkage. Find out on handover day—late, but better than waiting half a year to find out.
Fourth thing: Change the WiFi name to your own on the same day, don't leave a trace for the technician
The root of the accident at
cousin's house was here: the network distribution records for all the appliances in the house listed the technician's temporary WiFi "LGL-5001." When the technician disconnected, all forty devices went completely unconnected. The correct approach is to replace the router with your own on the day of handover, while the technician is still present, and change the WiFi name and password to your own settings, then check each device for the connection.
the benefit of doing this is that problems discovered on the spot and managed immediately. After changing the name, whenever a device couldn't connect or needed reconfiguration, the technician would be right there—he would climb the ladder, and after-sales service would take responsibility. If you wait until it's gone and you modify it, the fate of those forty units can only be remedied—most can be saved, but there will always be a few on the signal edge or stationed in strange places, enough to keep you busy for a whole weekend.
Two details
the revision. First, copy your name and password in two copies: one to stick on the inside of the weak current box cover, and one to keep your phone. Don't try to set the password and then forget it right away. Second, handling 2.4G and 5G: a large number of smart devices only recognize 2.4G, dual-band routers occasionally cause devices to access the wrong bands. On the day of handover, when the devices are busy, it's the perfect time to disassemble the dual-band and reserve a fixed 2.4G name for smart devices, benefiting the entire house in one move.
Fifth: Don't let the craftsman throw away the cardboard box; there are important considerations when handing over documents
last and most inconspicuous and easiest to lose in the chaos of delivery: packaging and paper materials . Have the technician gather the boxes, manuals, warranty cards, and spare parts for each piece of equipment to hand over to you. The items that almost got thrown away at Old Zhou's house were: two mechanical keys for the door lock and a hole opening template (the key is the last backup tool; after replacing the template, you'll still need it to install the lock), the warranty card for the fire neutral switch (this thing is broken and doesn't have a warranty card, so after-sales service can't recognize it by model), a spare 3M adhesive for the gateway, and a reset pin.
power adapter to say a few words. The adapters for gateways, curtain motors, and electronic peephole cameras all look similar, but their output voltages are different, which can easily cause problems if mixed together. Record "Entrance Gateway 12V 1A" in the remarks column, and after half a year, replace the adapter without having to check the box to guess.
there's one more thing not in the cardboard box: have the technician automate the configured scenes (home mode, timer, linkage) on his phone and send you a screenshot. These configurations can't be migrated with one click; screenshots are at least a draft. You can reconfigure them in your own account to avoid rethinking from scratch.
Finish: The order of the five items to go through and the corresponding numbers for different groups
order, I suggest following: first take the ledger and take a sticker, then check account ownership and settlement, unplug the modem to test the bottom line, switch to WiFi on the spot to check the connection, and finally collect the cardboard box to count the accessories. The first two are 'make things yours,' the middle two are 'understand the performance,' and the last is 'keep a backup plan.'
| your situation | the key |
| the whole home smart | packaged by the renovation company that day is to handle all five essentials. Account delivery and ledgers are the key issues |
| you buy your own equipment | keep your ledger and documentation complete, focus on disconnecting the network and removing the dual-frequency |
| a few scattered units taken from your rented house | as long as you have the account, keep everything simple |
| elderly living together | mechanical keys, physical switches, and scenarios that can be used even when offline are the highest priority |
Old Zhou followed this routine and handled over thirty devices on the spot. Only one bathroom smart mirror was stuck in the technician's account, and the person was still there, so it was removed in ten minutes. After signing, he told me the truth: after checking these five items, I realized I didn't buy forty app icons, but a house I could move, modify, and wouldn't crash even if the internet went down. If you ask me, the extra hour spent on handover day was the most cost-effective investment among whole-house smart devices.
