Why Xiaomi Redmi Note 7 is constantly rebooting and how to fix it

Xiaomi Redmi Note 7 is one of the most popular smartphones of the brand, but even it is not immune to system failures. MI Or you go into a rebuke, it's not a sentence, and 80 percent of the time, you can solve the problem without going to a service center, and the key is to diagnose the cause and act on the algorithm.

In this article, we will look at all possible causes of cyclical reboot, from software conflicts to hardware malfunctions, how to distinguish firmware failure from battery problems, which manipulations are safe for beginners, and when to trust the professionals. All instructions are adapted specifically for the Redmi Note 7 (codename lavender) and checked on current versions. MIUI.

Warn in advance: some methods (for example, unlocking the bootloader or firmware through Fastboot) require experience. ADB or SP Flash Tool, you better skip these sections or work under the guidance of a specialist.

Basic checks: what to do first

Before you start taking drastic measures, eliminate the obvious causes. Often, a cyclical reset is not about a breakdown, but about temporary disruptions or external factors.

Step 1. Check the battery power. If the charge level is below 15%, the smartphone can turn off and turn on in an attempt to save energy. Connect the original charger and wait at least 30%. Use a cable with Quick Charge 3.0 support - unoriginal accessories can cause voltage surges.

Step 2. Examine the body for physical damage, cracks on the screen, dents or traces of moisture (indicators inside the slot) SIM-The card turned red) is a signal that the motherboard may be damaged, in which case self-repair is not recommended.

• 🔋 Charging: Try another charger or cable. Sometimes the problem is a faulty power supply.
• 🌡️ Overheating: If the case is hot, let the phone cool for 10-15 minutes. Remove the case - it can block the heat sink.
• 📶 Network: extract SIM-map SD-A faulty memory card often causes failures.
• 🔄 Forced reboot: Press the power button for 10 to 15 seconds until the screen goes out.

⚠️ Warning: If the phone goes back into cycle after a forced reboot, DO NOT repeat the action repeatedly.

2. Software failures: resetting settings and safe mode

If the basic checks didn't work, the likely cause is a software conflict. On the Redmi Note 7, it can happen after:

• update MIUI "airborne" (OTA),
• Install applications from unverified sources,
• manual interference with system files (e.g., via Root).

Method 1. Starting in Safe Mode

Safe mode disables all third-party applications, leaving only system ones, and if the phone is stable in this mode, one of the installed applications is to blame.

How to start:

1. Turn off your phone (if it responds to the power button).
2. Press the power button until the MI logo appears.
3. Once the logo appears, immediately press and hold the volume button until the phone boots.
4. In the lower left corner of the screen should appear the inscription Safe mode.

In Safe Mode, remove suspicious apps (especially those installed before crashing) and then restart your phone as normal.

Method 2. Reset to factory settings

If Safe Mode doesn't work or the phone doesn't boot even before the logo, do a hard reset. This will delete all the data, but it will return the phone to its original state.

Backup of important data (if the phone is still turned on)

Remember your Xiaomi account (linked email and password)

Make sure that the battery charge is > 50%

Prepare the original cable USB (Recovery via PC if required)-->

Instructions for Redmi Note 7:

1. Turn off the phone.
2. Press the power and volume buttons for 10-15 seconds at the same time until the Recovery menu appears.
3. Use volume buttons to navigate, select Wipe Data (or Clear Data).
4. Confirm the action by choosing Confirm.
5. After reset, select Reboot.

⚠️ Note: if after resetting the phone requires you to enter a Xiaomi account, and you do not remember it - restore the password to the site account.xiaomi.com.

3.Firmware problems: Recovery through Recovery and Fastboot

If the reset didn't help, it's probably the firmware itself that's damaged.

• interrupted MIUI,
• Incorrect installation of custom firmware,
• viruses that have damaged system files.

Method 1: Install firmware through Recovery

This method is suitable if the phone boots to at least the Recovery menu. You will need the official firmware for the Redmi Note 7 (codename lavender). Download it from the Xiaomi Firmware website (choose the Recovery version). ROM).

Instructions:

1. Download the.zip file renamed to update.zip and put it in the root SD-card or internal memory (if the phone is recognized by the PC).
2. Load to Recovery (Power buttons) + volume).
3. Select Install update.zip to System.
4. Confirm the installation and wait for completion.

Method 2. Firmware through Fastboot (for experienced)

If Recovery is not available or not, you will have to use Fastboot. This method requires an unlocked bootloader and knowledge of commands. ADB.

Instructions:

1. Download the Mi Flash Tool and the official Fastboot ROM lavender.
2. Unpack the archive with firmware in a folder without Cyrillic characters.
3. Download your phone to Fastboot mode (power buttons) + volume).
4. Connect to your PC, launch the Mi Flash Tool and select the firmware folder.
5. Press Refresh, then Flash. Wait until it's finished (don't turn it off). USB!).

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Before you run through Fastboot, check the bootloader version with fastboot getvar anti. If the answer is anti: 3 or 4, use the firmware marked Anti-Rollback, otherwise you risk getting a brick.

Hardware malfunctions: battery, board, contacts

If the software methods didn't work, the problem lies in the hardware. For the Redmi Note 7, the typical hardware reasons for the reboots are:

• 🔋 Battery wear: after 2-3 years of operation, the capacity drops by 30-50%, which causes voltage surges.
• 🔌 Contact oxidation: moisture or corrosion on the battery or charger connector.
• 🔥 Processor overheating: Cooling system or thermal paste malfunction.
• 🛠️ Damage to the motherboard: often after falls or bumps.

How to diagnose:

1. Battery check: If the phone reboots at 20-60% charge, it is likely that the battery needs to be replaced. Use the AccuBattery app (if the phone is even occasionally turned on) to analyze wear.

2.Overheating test: install the app AIDA64 And check the temperature of the processor.°C in plain, up to 65.°C under load. If above, cleaning or replacement of the heat paste is required.

3. External inspection: gently open the back cover (if you have experience) to check if the battery is swelling, if there are any traces of oxidation on the contacts.

⚠️ Warning: If the battery blows up (visible from the lid or screen raised), DO NOT try to charge it or turn on the phone. This is dangerous - risk of fire.

Self-repair: If you are confident in your abilities, you can replace the battery or clean the contacts with alcohol. BLT08 4000 mAh. The cost is from 800 rubles:

• Use a plastic spatula to avoid damaging the plumes.
• Turn off the battery before work (unplug the connector).
• Do not pull the screws during assembly.

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If the phone reboots when it connects to charging, 90% of the problem is with the power controller on the motherboard, and self-repair is not possible here, requiring a soldering station and experience.

5. Application conflicts and viruses

Sometimes reboots are caused by malicious applications or conflicts between software, such as:

• Root-enabled applications (e.g. Greenify, Titanium Backup)
• Pirate Games or Modified Games APK,
• Viruses masquerading as system utilities.

How to identify the problem application:

1. If the phone is even occasionally turned on, check the list of recently installed programs in Settings → Annexes → Application management.

2. Use Safe Mode (described in section 2) to confirm that third-party software is at fault.

3. Check your phone for viruses using Malwarebytes or Dr.Web Light (download only from Google Play).

List of "suspected" applications:

• 🎮 High-demand games (PUBG Mobile, Genshin Impact),
• 🔍 Cleaners and Optimizers (Clean Master, DU Speed Booster),
• 📱 Launchers from third-party developers (Nova Launcher, Action Launcher),
• 🔗 VPN-Clients and proxy applications.

If you find the culprit, delete it and restart the phone. If suspicion falls on the system application (for example, Mi Video or Mi Browser), disable it through Settings. → Annexes → Show it all. → [name] → Shut down.

6 Problems after the update MIUI: rollback and clean installation

Updates by air" (OTA) Sometimes they contain errors, especially in the first version. If the phone started to restart immediately after the update, try to roll back to the previous version. MIUI.

How to roll back:

1. Download the old firmware version (for example, with Xiaomi Firmware Updater).
2. Place the file. update.zip root-memory.
3. Download to Recovery and select Install update.zip.

Clean installation (clean flash): if rollback does not help, perform a full flashing with formatting:

1. In Recovery, select Wipe Data → Wipe All Data.
2. Then install the firmware through Install. update.zip.
3. After restarting, set your phone as new.

Critical information: on Redmi Note 7 with the Anti-Rollback 3 and higher bootloader version, a rollback to the old firmware can lead to a "brick". MIUI Recovery menu or via fastboot getvar anti.

7.When to contact the service: signs of serious breakdowns

Some problems cannot be solved by yourself. Contact the service center if:

• 🔥 Phone overheats to 70°C and above even in plain.
• 💥 Artifacts (strips, flickers) appear on the screen before rebooting.
• 🔌 The phone does not turn on at all (no reaction to charging and buttons).
• 🔋 The battery swelled or deformed the body.
• 📱 Less than 48 hours have passed since the fall or moisture.

How to choose a service:

1. Xiaomi’s official centers (listed on mi.com) guarantee original parts, but repairs can cost more.

2. Informal workshops are often cheaper, but the risk of forgery is higher. Check reviews and ask for a guarantee for the work.

3. Any proven workshop will do the job of replacing the battery or screen. To repair the motherboard, look for specialists with micro soldering equipment.

Cost of repair (approximately for Moscow, 2026):

⚠️ Warning: If the phone is warranty, DO NOT open it yourself and DO NOT flash it through Fastboot. This will void warranty obligations.

8.Prevention: How to Avoid Resets in the Future

To minimize the risk of repeated failures, follow these guidelines:

• 🔋 Charging: Use only original or certified accessories. Avoid cheap power bank.
• 📱 Updates: Install MIUI Only through official channels (Settings) → The phone. → Updating the system).
• 🛡️ Security: Do not install APK Enable Google Play Protect in your security settings.
• 🧹 Cleaning: once every 3 months clean the charging connector from dust with a toothpick (carefully!).
• 🔄 Backup: Regularly save important data to Mi Cloud or PC.

Useful monitoring applications:

• AccuBattery – Control of battery wear.
• AIDA64 — temperature and iron diagnosis.
• Greenify (power users only) – Optimize application background activity.

If your Redmi Note 7 is no longer warranty-worthy, consider installing custom firmware (like Pixel Experience or LineageOS). MIUI, but require unlocking the loader.

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Check the battery regularly, and if it has dropped below 70% of its nominal capacity (less than 2,800 mAh for the Redmi Note 7), replace the battery to prevent power surges and sudden reboots.

FAQ: Frequent questions