The Xiaomi Mi Watch 9 (also known as the Xiaomi Watch S3 in some regions) became one of the most popular wearable gadgets of 2023-2026 thanks to a combination of stylish design, advanced health features and affordable price. However, even with such an advanced device, users sometimes face a basic problem: the watch does not turn on after buying, discharging or crashing firmware. If your gadget does not respond to presses or demonstrates a black screen, do not panic - in 90% of cases the problem is solved in 5-10 minutes.
In this article, we will look at all possible scenarios for the inclusion of Xiaomi 9 series smartwatches, from standard procedure to emergency recovery methods. You will learn how to distinguish a full battery drain from a software failure, what button combinations are used for forced reboot, and what to do if the watch hangs on the Mi logo. Particular attention will be paid to typical user errors that lead to locking the device, and give a checklist for fault diagnosis.
1. Standard on: First setup of new watches
If you’ve just unpacked the Xiaomi Mi Watch 9 or it’s completely dead, start with the basic turn-on procedure. Most users don’t have problems at this stage, but there are nuances that aren’t written about in the official instructions.
To turn on the clock for the first time:
- 🔋 Connect the device to the original charger (using third-party cables can cause slow charging or no reaction).The charging indicator (red or orange LED) should catch fire during the charge. 10-15 seconds.
- ⏳ Wait for the minimum charge level (enough) 5-10 minutes), then press and hold the physical button (sideway) for a period of time. 8-10 A few seconds before the Mi logo appears.
- 📱 After turning on, watch the screen – the watch will offer you to choose a language and connect to the Mi Fitness application (or Zepp Life for the global version).
Important: If the charging indicator is not on, check:
- 🔌 Cable and adapter for damage (try another charger with output) 5V/1A or 5V/2A).
- 🧲 Clean contacts on the back of the watch – sometimes dust or sweat blocks the connection.
- 🔄 Try turning the clock over at the charging station (the contacts should fit tightly).
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If the watch doesn’t respond to charging, try leaving it at the station for 30-40 minutes – sometimes a deeply discharged battery takes time to “wake up.”
2. Forced reset: if the clock is getting stuck
The situation when Xiaomi Mi Watch 9 hangs on the logo, black screen or do not respond to touch, is familiar to many owners. The reasons can be different: firmware failure after the update, application conflict or hardware glitch.
Instructions for forced restart:
- Disconnect the watch from the charger (if connected).
- Press the physical button for 15-20 seconds until the screen goes out and the Mi logo appears.
- If the button doesn’t work, try the combination: Hold the button + tap the screen for 10 seconds.
After the reset, the clock should start normally, and if the problem recurs, it may indicate:
- 🔄 Damaged firmware (requires flashing through Mi Fit).
- 🔋 Faulty battery (clocks are turned off at a charge level above 20%).
- 🛠️ Hardware breakdown (for example, detached screen plume).
3. Recovery after complete discharge
The Xiaomi Mi Watch 9 battery can run to the point where the watch will not respond to charging within the first 5-10 minutes, which is normal for lithium polymer batteries that go into "deep discharge" and require a special "resuscitation" procedure.
Algorithm of action:
☑️ Recovery after discharge
If after 40 minutes of charging the indicator does not catch fire:
- 🔌 Try another charger (like a Xiaomi smartphone with Quick Charge support).
- 🌡️ Check the temperature of the watch if it is cold (below). +10°C, warm them up in your hands. 5-10 minutes before charging.
- 🔄 Connect the watch to charging and simultaneously press the button on 20-30 seconds.
⚠️ Warning: If the watch does not show signs of life after an hour on charging, this may indicate a malfunction of the power controller.
4. Resetting settings to factory
When the Xiaomi Mi Watch 9 is turned on but is not running smoothly (e.g., constantly rebooting or not syncing with the phone), factory reset will help.This procedure removes all data from the watch, including the apps and settings installed, so use it only as a last resort.
Resetting methods:
| Method | Instructions | When to use |
|---|---|---|
| Through the settings menu | Go to Settings → System → Resetting → Reset everything | The clock is turned on and reacts to touch. |
| Through the Mi Fitness app | Open the profile of the watch → Settings → Untie the device | The clock is synchronized with the phone, but glitch |
| Hardware discharge | Press the button 30 seconds before vibration + touch the screen | Watches hang on logo or don’t respond to menu |
Once reset, the watch will automatically reset and be prompted to undergo the initial setup, as after purchase. If the reset didn't help, it could mean:
- 🔧 Damage to system files (requires flashing via Fastboot).
- 💾 Flash memory malfunction (watches do not save settings after restarting).
What to do if the reset does not help?
5. Diagnosis of malfunctions: when to contact the service
Not all problems with the Xiaomi Mi Watch 9 powering on are solved by software methods.If you have tried all the methods in this article, but the watch still doesn’t work, note the following signs of hardware malfunctions:
Symptoms requiring repair:
- 🔥 The clock heats up when charging or working (over 45 hours).°C).
- 💧 Under the body visible condensation or traces of oxidation (ingestion of moisture).
- 🔋 The battery is discharged for 1-2 hourly during normal use.
- 📱 The screen flickers, artifacts or vertical stripes appear.
Average cost of repairs in service centers (2026):
| Problem. | Cost (₽) | Duration of repairs |
|---|---|---|
| Battery replacement | 1 500 — 2 500 | 1-2 days |
| Screen plume repair | 2 000 — 3 500 | 2-3 days |
| Replacement of display | 3 000 — 5 000 | 3-5 days |
| Recovery after moisture is ingested | 2 500 — 4 000 | 5-7 days |
⚠️ Warning: if the watch is in water (even with the declared protection 5) ATM), First, dry the device in rice or silica gel for at least 24 hours, and try to run with moisture inside will short circuit.
Prevention of inclusion problems
To avoid situations where Xiaomi Mi Watch 9 refuses to turn on, follow these guidelines:
Operational rules:
- 🔋 Do not allow discharge below 10% – lithium polymer batteries degrade at deep discharge.
- 🔄 Update the firmware through the official application (do not use custom firmware!).
- 🧼 Regularly clean the contacts of charging with an alcohol napkin.
- 🌡️ Avoid overheating (do not leave your watch in direct sunlight or in a sauna).
It's also useful to know:
- 📴 If you don’t use a watch for more than a week, store it with a charge. 40-60% cool-place.
- 🔒 Do not install applications from unverified sources – they may contain malfunctioning viruses.
- 🛡️ Reload the clock once a month (this clears the cache and prevents hangings).
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Regular reboots (1 every 2-3 weeks) and firmware updates reduce the risk of software failures by 70%.