Xiaomi Redmi does not include 7A: full guide to diagnosis and repair

Xiaomi Redmi 7A — One of the most popular budget smartphones of the brand, but even it is not immune to sudden failures. If your device stopped turning on, do not rush to carry it to the service center: in 70% of cases, the problem can be solved yourself. 7A, Even if the screen is black and the charging indicator is not lit.

We analyzed hundreds of user reviews and Xiaomi technical documentation to compile a checklist of actions, from basic (check charging) to advanced (fastboot flashing), and focused on typical errors that exacerbate the breakdown, such as trying to charge a dead battery through a non-original cable or interrupting the software update process.

Important: if a smartphone responds to charging (vibrates, lights up), but does not load beyond the logo, this is one category of problem. If it is completely dead (no reaction to buttons, lights, sounds), the causes and solutions will be different.

1.Diagnosis: Why Redmi is not included 7A

The first step is to determine which part of the smartphone has failed.

• 🔋 Battery: deep discharge, bloating or falling contacts.
• ⚡ Charger/cable: power supply failure or wire break.
• 📱 Software failure: firmware damage after an update or virus attack.
• 🛠️ Hardware breakdown: failure of the motherboard, power button or screen plume.

To narrow down the possible causes, answer the questions:

• 🔌 Smartphone responds to charging (indicator, vibration, sound)?
• 🔄 Have there been recent falls, bumps or moisture intrusion?
• 📲 Before the breakdown, a software update or application installation was performed?
• ⏳ How long has the smartphone not been used (the risk of deep discharge)?

If the smartphone is not showing signs of life (no indication, sounds, vibrations), most likely the problem is in the hardware — the battery, the board or the power button. If there is any reaction (for example, a red light flashes), there is a good chance that the software is to blame.

⚠️ Please note: Don’t try to disassemble Redmi. 7A Without experience, there are fragile plumes inside, and the battery can ignite if damaged.

2. Basic actions: charging and power button

Start with the simplest thing, checking the charger and cable.Use the original power supply from Xiaomi (5V/2A) Or a certified analog. Connect your smartphone to charge and pay attention:

• 🔴 Red indicator - battery discharged, charging is underway.
• 🟢 Green indicator – battery charged, but the smartphone is not turned on (possible software failure).
• ⚫ No indication - problem with battery, cable or board.

If the indicator is not on, try:

1. Connect another charger (preferably from Xiaomi).
2. Use a different cable (check for no damage).
3. Connect your smartphone to your computer through USB — If the computer makes a connection sound, the problem is in the screen or firmware.
4. Leave on charging for 30-60 minutes - perhaps the battery is completely discharged.

If charging is underway (the indicator is burning), but the smartphone does not turn on, perform a forced reboot:

1. Press the Power + Volume button up for 10-15 seconds.
2. If the Xiaomi logo appears, release the buttons – the smartphone must boot.
3. If there is no reaction, try again 2-3 times.

⚠️ Warning: If after a forced reboot, the smartphone hangs on the Xiaomi logo, do not turn it off - this is a sign of damaged firmware.

3. Battery problems: how to check and what to do

Battery is the most vulnerable place in Redmi 7A. The average lifespan is 2-3 years, after which the capacity drops and the risk of deep discharge grows. If the smartphone does not respond to charging and does not turn on, the reasons may be the following:

• 🔋 Deep discharge (voltage below) 3.0V) — controller blocks charging.
• 💥 Battery bloating - visually noticeable by the swelling of the back cover.
• 🔌 Contacts fall off after falling or vibration.
• ⚡ Failure of the charging controller on the motherboard.

To check the battery without disassembling:

1. Connect your smartphone to charging and touch the back cover – if it’s hot, the battery is swollen.
2. Illuminate the flashlight at the junction of the screen and the case - if a gap is visible, the battery is swelling.
3. Try to easily tap on the back cover (not much!) - if after that there is an indication of charging, the problem is the tip of contacts.

If you suspect battery blistering:

• ❌ Do not try to charge - it is dangerous (risk of fire).
• ✅ Take to the service for replacement (cost - from 800 to 1500 rubles).

If the battery is discharged to zero:

• Use a special charger with a “boost” function (for example, Xiaomi Mi Charge Turbo).
• Connect to Power Bank with Exit 5V/2A Leave it on 2–3 hour.
• If nothing helps, contact the service - they use a laboratory power supply to "reanimate" the battery.

4 Software glitches: Recovery via Fastboot and Recovery

If Redmi 7A It reacts to charging (the indicator burns), but it doesn't load beyond the logo, the problem is probably the firmware:

• 📲 Failed update MIUI.
• 🛠️ Custom firmware installations.
• 🦠 Viral attacks or damage to system files.

In such cases, it will help to log into Recovery mode or firmware via Fastboot.

Method 1: Resetting through Recovery

If the smartphone vibrates when booting but does not start:

1. Turn off the device (clip Power + Volume up for 10 seconds).
2. Press Power + Volume up before the Mi Recovery logo appears.
3. Select Wipe Data → Wipe All Data (delete all data!).
4. Confirm the action and restart the smartphone.

Method 2: Fastboot Firmware

If Recovery is not available or the reset does not help, you will need to reflash the smartphone via Fastboot.

• 🖥️ Windows computer.
• 🔌 Original. USB-cable.
• 📁 Fastboot firmware for Redmi 7A (Download from the official Xiaomi website).
• 🛠️ The Mi Flash Tool.

Step-by-step:

1. Download and install the Mi Flash Tool.
2. Unpack the firmware in a folder without Cyrillic symbols.
3. Turn off your smartphone and press Volume Down + Power to log into the Fastboot.
4. Connect the Redmi 7A to your computer.
5. In Mi Flash Tool, select the firmware folder and press Refresh (should appear). COM-port).
6. Press Flash and wait for the process to end (5-10 minutes).

⚠️ Note: Fastboot removes all data on the device, including photos and contacts. If your smartphone had important files, try extracting them first. ADB (if the device is determined by a computer).

💡

Before you run through Fastboot, disable the antivirus – it can block Xiaomi drivers, which is why the Mi Flash Tool will not see the phone.

5. Hardware breakdowns: power button, plume, motherboard

If all software methods have been tried, but Redmi 7A It still doesn't work, it's a problem in the hardware:

🔘 The power button is not working.

Symptoms:

• The smartphone does not respond to the press of a button.
• Sometimes it is turned on spontaneously (due to the closure of contacts).
• The "fail" button or the "wedge" button.

Decision:

• If the button is stuck, try to clean it gently with alcohol (without disassembling the phone).
• If the button is broken, you will need a replacement (cost – 500-1000 rubles).
• Temporary solution: connect charging – some smartphones turn on automatically when power is supplied.

📱 Screen plume or motherboard damaged

Symptoms:

• The screen does not turn on, but the smartphone vibrates when booting.
• The speaker can hear the sounds of the loading, but the image is missing.
• The phone stopped turning on after falling or getting moisture.

Decision:

• If the screen is cracked, but the smartphone is working (sounds are heard), the problem is in the plume or matrix.
• If the phone fell into the water, it must be disassembled and dried in the service (self-drying is risky - the board can oxidize).
• If the board is damaged (for example, after a short circuit), a diagnosis with soldering equipment will be required.

🔌 Problems with the power controller

Symptoms:

• The smartphone is not charged, but is determined by the computer.
• The charging indicator is flashing unstable.
• The phone is turned on only from charging, but immediately turns off when the cable is turned off.

Decision:

• Problem with the power controller chip (e.g, PMIC).
• Self-repair is impossible - it requires soldering in the service.
• Cost of repair: 1500-3000 rubles (depending on the degree of damage).

💡

If the smartphone does not turn on after falling or getting moisture, do not try to charge it - this can aggravate the damage to the board.

6. Alternative ways to turn on (if the power button does not work)

If the power button is on Redmi 7A broken, but the smartphone responds to charging, it can be turned on in alternative ways:

🔌 Initiation via charger

Some Xiaomi smartphones automatically turn on when you connect to the network.

1. Connect the original charger.
2. Leave on the charge for 10-15 minutes.
3. If the screen is on fire but the button is not working, use gestures on the screen (if enabled in the settings).

📱 Incorporation through ADB (if USB-debugging was included)

If you have previously activated the developer mode and USB-debugging, you can turn on the smartphone through the computer:

1. Connect Redmi 7A to your PC.
2. Open the command line and type: adb shell input keyevent 26 (this simulates pressing the power button).
3. If the device is detected but not turned on, try the command: adb reboot

🔄 Enable via Recovery (if the button is buggy)

If the power button sometimes works, but not always:

1. Connect the charger and wait until the indicator lights up.
2. Press the volume up multiple times + Meals until the Recovery Menu is available.
3. Select Reboot → System.

7. When to contact the service: prices and guarantees

If none of these things work, it’s time to bring the Redmi. 7A Here are the estimated prices for popular services (2026):

Where to repair:

• 🏢 Xiaomi’s official service is a guarantee for work, but more expensive (and sometimes longer).

Tips for choosing a service:

• Check if you use original parts (especially for the battery).

⚠️ Attention: If Redmi 7A warranty (up to 12 months from the date of purchase), do not open it yourself - this will cancel the warranty.

8 Prevention: How to avoid problems in the future

To Redmi. 7A served longer:

• 🔋 Do not discharge the battery to zero – connect the charge at 15-20%.
• ⚡ Use original or certified chargers.
• 📲 Update regularly MIUI, Do not install the beta versions (they may contain errors).
• 💧 Avoid moisture – even if your smartphone doesn’t turn off immediately, corrosion can show up months later.
• 🛡️ Install a cover and protective glass – this will reduce the risk of damage when falling.

We also recommend:

• Once every six months to reset the cache through Recovery (Wipe Cache).
• Do not install applications from unofficial sources (virus risk).
• If the smartphone has not been used for a long time, turn it on every 2-3 months and charge up to 50% (this will prolong the life of the battery).

💡

The most common cause of Redmi breakdowns 7A — If the smartphone is discharged "to zero" and does not turn on, do not leave it so long: after 2-3 weeks without charging, the battery can fail irrevocably.

FAQ: Frequent questions about Redmi 7A