The broken power button on Xiaomi Redmi 7 is a problem that many owners face after 2-3 years of use: the button either stops responding to presses or sticks due to dust, moisture or mechanical wear. But don’t rush to carry the phone into service: 80% of the time, the device can be turned on without physical repair.
In this article, we’ll look at all the ways Redmi 7 can be activated without a power button, from basic (connect to charging) to advanced (using ADB or disassembling the body), each with real-world devices, step-by-step instructions, risk warnings, and tips to prevent relapses.
⚠️ Warning: If the phone is turned off due to a discharged battery, charge it at least first 15-20 Attempts to turn on a dead battery can cause firmware to fail.
1. Energizing through the charger (the easiest way)
If the power button doesn’t work but the phone isn’t fully drained, try activating it with the original charger, which works 60-70% of the time thanks to the Mi Fast Charge feature, which automatically triggers the device when connected to the network.
What you need: a serviceable USB Type-C cable and a charger with a capacity of 10 W (better original from Xiaomi).
- 🔌 Connect the phone to the charger and leave it on 10-15 You don't have to see the screen, that's normal.
- ⏳ If 15 The charging indicator (red battery) will appear on the screen for a minute, wait for more 5 minutes and try to hold the volume button 10-15 seconds.
- 📱 On some of the Redmi firmware 7 The process is automatically activated when it is reached 5-10% charge.
If the screen is black, move to the next method, and on MIUI 12 and later, the auto-on function can be turned off when charging, in which case the method will not work.
2.Use of OTG cable and mouse (to unlock the screen)
If the phone is already on, but the screen is locked, and the power button does not work, you can unlock it using the OTG-adapter USB-This method is suitable if you have mice:
- 🔋 The phone is charged at least on 10-15%.
- 🔓 The screen shows the lock interface (input) PIN-code, pattern lock).
- 🖱️ You have. OTG-adapter (stands) ~100-200 ruble).
Step-by-step:
- Connect. OTG-Adapter to the phone and adapter — USB-mouse.
- Click the mouse on the field of PIN-code entry or pattern lock.
- Unlock your phone in the standard way.
- After unlocking, go to Settings → Special Options → Button Management and enable the option of Double-pressed Enablement (if available).
⚠️ Attention: Not all OTG-Adapters compatible with Redmi 7. Use adapters with Meilink chip or original from Xiaomi.
Support for OTG in phone settings (Settings → Connections → OTG)
Correction USB-Port (try another device)
Battery charge of at least 10%
Compatibility of the adapter with MIUI-->
3. Activation through ADB (for advanced users) If the phone was previously connected to a PC with debugging enabled USB (USB Debugging can be enabled via command ADB. This method requires minimal technical skills, but it works even on a completely switched-off device (assuming the battery is charged: 💻 A computer with installed Xiaomi drivers and ADB Tools. 🔌 Original. USB-cable (not cheap Chinese cable!). 📋 Included debugging by USB (If you don't, it won't work. Instructions: Connect your phone to your PC. Open the command line. + R → Enter the command: adb devices If the device is identified (the serial number will appear), move to the next step. If not, check the driver or cable. Run the switch on command: adb input shell keyevent 26 (code 26 corresponds to the power button). If the phone doesn’t respond, try an alternative command: adb shell reboot. ADB Does the device see? 1. Install the Mi driver PC Suite from the official Xiaomi website. 2. Try another one USB-port USB 2.0). 3. Restart your PC and phone (if possible). 4. Check if debugging is enabled. USB In Settings → The phone. → Version. MIUI (Press 7 times, then return to Settings → Additionally. → For developers).
Incorporation through battery retrieval and resetting
If all the software methods don't work, the mechanical way is to shut down the battery for a short time, and this is a simulation of hard reset, and it works 90 percent of the time, but it requires disassembling the phone.
What you need:
- 🔧 Plastic blade or mediator for opening the body.
- 🧲 Magnetic screwdriver (cross, size) PH00).
- 🔋 New Scotch for the Battery (optional).
Step-by-step:
- Turn off your phone (if it is not already turned off).
- Heat the back cover with a hair dryer (temperature ~50°C) for 1-2 minutes to soften the glue.
- Carefully tuck the lid with a plastic spatula, starting at the bottom corner (near the Type-C connector).
- Unscrew 8 screws that fix the metal plate.
- Disconnect the battery plume (it's connected to the motherboard with a clip clip). Wait 30 seconds.
- Plug the plume back in and collect the phone.
- Connect the charger – the phone should turn on automatically.
| Risk | Effects of consequences | How to avoid |
|---|---|---|
| Damage to the plume | Loss of battery communication | Use a plastic spatula, do not pull the wires |
| Contact break | The phone won't charge. | Disconnect the plume carefully, without jerks |
| Battery overheating | Bloating or ignition | Do not heat the body above 60°C |
⚠️ Warning: Disassembly of the phone is not guaranteed (if it is still valid). If you are not sure of your abilities, contact the service center.
💡
Before disassembling, take a picture of the location of all the screws and plumes, which will help to properly assemble the phone back and avoid short circuit.
5. Enable via service menu (if phone is in charge mode)
If the phone responds to charging (the indicator is on), but does not turn on, you can try to log into the service menu (Fastboot or Recovery) using button combinations.
Methods of entry:
- 🔄 Fastboot: Press the Volume Down + Power for 10 seconds. If the power button doesn't work, use the Volume Up combination. + Loudness down + Connection to PC.
- 🛠️ Recovery: Press the Volume Up + Power. In the recovery menu, select Reboot system now with volume buttons and confirm the choice with the Power button (if it responds even slightly).
If you managed to log in to Fastboot, connect your phone to your PC and execute the command:
fastboot reboot💡
The service menu is the only way to turn on your phone if the power button is completely dead but the battery is charged.
6. Alternative solutions: what to do if nothing has worked
If all of these methods fail, radical measures remain:
- 🔧 Repair of the power button. The cost of replacing the service center is from 800 to 1500 rubles. On Redmi 7, the button often fails due to oxidation of the contacts (solved by cleaning with alcohol).
- 🔄 Firmware through EDL. If the phone doesn't turn on even after the battery is turned off, it can be "resuscitated" via Emergency Download Mode.Requires boxing (UFi, EasyJTAG) or help from a specialist.
- 📱 Using your phone without a power button. If you can turn the device on at least once, install the Button Remapper app and reassign it to a long press of the volume button.
Should you repair? Xiaomi Redmi 7 Released in 2019, and its market value today is 3000-5000 rubles. If the repair costs more than 1500 rubles, it is more advisable to consider buying a new phone (for example, Redmi 9A or Poco M3).