Smart humidifiers from Xiaomi and the sub-brand Smartmi are deservedly popular due to their reliability and functionality, but even the most advanced gadgets sometimes require user intervention. The situation when the device stops responding to commands in the application, freezes or incorrectly displays the humidity level is not so rare. In such cases, a standard reboot with the on button often does not help, and the only right solution is a complete reset to the factory settings.
The recovery process depends on the specific model of your device, as the hardware and logic of the software work differ from generation to generation. Reset Xiaomi humidifier may be required not only when you break down, but also when you change the Wi-Fi router, transfer the device to a new owner or after updating the firmware that caused a software conflict. In this article, we will discuss in detail the algorithms for the various versions of devices so that you can quickly return the microclimate to normal.
Before we take any drastic measures, it is important to make sure that the problem lies in the software failure, not in the banal lack of water or contamination of sensors. Misuse often leads to false errors that users take for the need to flash. We will look at all the nuances so that you do not damage the device with inept actions.
Preparation for discharge and diagnosis
Before any electronic manipulations begin, basic diagnostics must be performed to rule out simple causes of malfunction. Often users try to reset when the device simply cannot see water due to a dried sensor or scale. Carefully wash the reservoir and base, make sure that the float is free to walk and not stuck in the lower position. If there are no mechanical obstacles and the device continues to behave strangely, move to software methods.
It is important to understand the difference between a normal shutdown and a full reset. The first simply breaks the power chain, the second clears the controller’s memory from user configurations. Resetting is necessary when the humidifier “forgets” your router or stops syncing with the cloud server. To perform the procedure, you will need the humidifier itself, a serviceable smartphone with the Mi Home or Smartmi application installed, and a stable Internet connection.
Why doesn’t the humidifier connect after the router is reset?
Make sure that the tank has water, as many models have dry protection and can block the entry into setting mode when the liquid level is low. Also check that the socket to which the device is connected is grounded - this is important for the correct operation of the capacitive sensors of some models.
- 🔌 Turn off the humidifier from the network on 10-15 second-only.
- 💧 Check the water level and purity of the float sensor in the tank.
- 📱 Make sure your smartphone is connected to a 2.4GHz Wi-Fi network (5GHz is often not supported).
- 🔄 Update the Mi Home app to the latest version through the app store.
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Before resetting, try simply removing the device from the Mi Home app by clicking on three dots in the corner of the device card and selecting "Delete." Sometimes this solves the problem of status hanging without having to physically reset the buttons.
Reset Xiaomi Humidifiers with Mechanical Buttons
Physically controlled models, such as the classic Xiaomi Mi Humidifier (white cylindrical) or Deerma, often don’t have a separate “Reset” button. In such devices, reset is done by a combination of buttons on the touchpad or prolonged retention of the main key. This is the most common type of control, where Wi-Fi reset and factory reset are combined into one procedure.
To start, turn the humidifier on and wait until the start diagnostics are complete. If the device turns on but does not work, or the error indicator is on, press the on button (or the select mode button if there are two) for 5-7 seconds. Some modifications require simultaneous pressing of the buttons "On" and "Mode" (or "Timer"). Hold them until you hear the beep or the Wi-Fi indicator flashes.
⚠️ Warning: Do not release the buttons immediately after the first flash. The indicator should start to blink quickly or change color, which signals the transition to pairing mode. If you release too early, the reset will not occur.
Once you successfully enter the setup mode, the network indicator will start to pulse, which means that the communication module is ready to receive new data. Now you can open the Mi Home application, click Add Device and follow the instructions on the screen, and the old network settings will be completely erased from the controller's memory.
In the rare cases where a software failure blocks the response to touch, you may need to repeat the procedure repeatedly. Try to press the buttons for 10-12 seconds. If that doesn't help, you may have a control board problem and need hardware repair or a module replacement.
Instructions for Smartmi models with touch screen
Flagship models such as Smartmi Evaporation Humidifier 2 or 3 are equipped with the latest models. OLED-It's often reset via the device's own settings menu or a combination, and displays the current humidity, temperature and connection status, making it easier to diagnose. However, if the interface is frozen, a forced method is required.
To reset the Smartmi humidifier with the screen, look for the setting button (usually indicated by a gear or the letter "S") and the on button. On some versions, you need to press and hold the on and off buttons for 5 seconds at the same time. A menu or flashing Wi-Fi icon may appear on the screen. In models with a rotary regulator (wheel), the reset is often done by double quick pressing on the wheel, followed by long retention.
| Model of the device | Action for discharge | Indication of success |
|---|---|---|
| Smartmi 2 | Mode button + On button (5 seconds) | Wi-Fi flashing |
| Smartmi 3 | Double-pressing of the wheel + retention | Screen sound and flashing |
| Deerma F600 | The "Function" button (7 seconds) | The "Dry" indicator flashes |
| Mi Pure | Light button + Light button | The pulsation ring |
If the device's screen is out or doesn't respond to touch, try the cold reboot method. Shut the device off the network, wait 30 seconds, turn it on again and immediately start performing a button reset combination. Time is critical here: you need to get in when the system is booted.
☑️ Smartmi reset checklist
Once you have restored access to the menu through the app, it is recommended to check the firmware version. Sometimes bugs that require resetting have already been fixed by developers, and the software update will prevent the problem from recurring in the future.
Delete the device through the Mi Home app
The software aspect of resetting is just as important as the physical one. Even if you successfully put the humidifier back in pairing mode, the old tails in the app can interfere with the correct operation. Removing the device from the Xiaomi cloud is a must before re-binding, which will clear the cache and update the access tokens.
Open the Mi Home app, find your humidifier card. Click on the three-dot icon in the top right corner (or tap the device list for a long time). In the menu that opens, scroll down to the Remove device button. Confirm the action. Now the device will disappear from the list, but remain in standby mode.
⚠️ Warning: Do not try to add a device without first removing it.This can lead to a device already added error or token conflict when the app sees the device but cannot control it.
If the app writes “Device Offline” and doesn’t let you delete it, try clicking on the device name, logging into its interface (even if it’s empty) and looking for the delete button there. In extreme cases, you can clear the app’s cache in Android/iOS settings or reinstall Mi Home.
After deleting, press the "+" in the app's main menu to find a new device. Make sure Bluetooth on your phone is on - this will speed up your search. Follow the tips: select your Wi-Fi network, enter your password. The humidifier should "grab" the signal and complete the setup.
- 📲 Make sure the region in the app matches the region of the device (China/Europe).
- 📶 Use 2.4 GHz network to avoid guest networks and corporate portals.
- 🔒 Turn off Mobile Data for setup time if errors occur.
- 🔄 If the reset didn’t help, try changing the region in the app settings.
Solving problems with indicators and errors
Smart humidifiers are equipped with a self-diagnosis system that displays error codes on a screen or flashes indicators in a certain order. Understanding these signals will help determine whether a reset is needed or a cleaning is required. For example, a flashing red indicator often means a critically low water level or a pump malfunction.
If the error persists after the reset, the problem is likely hardware. Check the integrity of the contacts at the base (where the tank connects to the base); Oxidation or water entering the contacts is a common cause of false positives; wipe with a dry cloth or cotton swab dipped in alcohol, all visible electrical contacts.
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A persistent error after a complete reset and cleaning of the contacts in 90% of cases indicates a malfunction of the Hall sensor or pump, which requires replacement of components.
In models with displays, error codes can look like alphanumeric combinations (for example, E1, E2). Decoding is better searched in the official manual, but the general principle is the same: errors associated with “Dry” or “Water” are solved by maintenance, and errors “Connect” – reset the network.
Sometimes, deep drying helps. If you get a lot of moisture inside the device, the electronics can block the work. Leave the humidifier off and open in a warm dry place for 24 hours. This will evaporate the condensation from the boards, then repeat the discharge procedure.