Xiaomi Redmi 9A is one of the most popular budget smartphones, but even it sometimes fails: suddenly brakes, does not respond to touches or even freezes on the logo. In 80% of cases, the problem is solved by a banal reboot, but how to do it if the screen does not work? In this guide, all the current ways to reboot for the Redmi 9A (including the M2006C3LG, M2006C3LI and M2006C3MII models), as well as analyzing the typical errors and their consequences.
We're not going to be limited to the standard "press the power button." Consider a soft rebate through the menu, hard button reset, reboot in Fastboot and even commands. ADB We will focus on critical cases where a reboot can exacerbate the problem, for example, when an interrupted update is made. MIUI or damage to the boot section.
Important: The instructions are valid for all versions of MIUI (including MIUI 12/13/14 based on Android 10/11/12) and do not require root rights. If your Redmi 9A is unlocked, some methods will become more accessible - we will talk about that too.
The safest way is to use the built-in functions of the system, and it is suitable if:
- 📱 The screen is working, but the smartphone is slowing down;
- 🔄 You need to restart the device after installing the applications;
- 🔋 Battery discharged by less than 15% (risk of sudden shutdown).
Steps:
- Press and hold the power button (right) for 2-3 seconds.
- In the menu that appears, select Reboot (or Restart in English firmware).
- Confirm the action if necessary.
If the power button doesn’t work (for example, after a fall), use an alternative path:
- Open the Settings. → The phone.
- Tap 7 times on the MIUI version (Developer Mode is activated).
- Back to Settings → Additionally. → For developers.
- Find the Reboot option and select it.
💡
If the smartphone is slowing down, close all applications through Recent Tasks before rebooting (swipe up from the bottom edge of the screen).
When the Redmi 9A doesn’t respond to touch or the screen is out, but the notification light flashes, a forced reboot will help, a technique that simulates battery extraction (although it’s not removable in the Redmi 9A).
Instructions:
- Press the power button + volume button at the same time.
- Hold them for 10-15 seconds until the screen goes out and the Xiaomi logo appears.
- Release the buttons – the smartphone will start loading in normal mode.
Is the smartphone connected to charging (the risk of damage to the port)|Whether all applications are closed (data will not be stored)|Are there any important unsaved files (for example, drafts in messengers)|The screen will not crack (pressure on the buttons can aggravate the damage)-->
What if it doesn't work? If after 15 seconds of holding, the screen is still black:
- 🔌 Connect your smartphone to charging for 5-10 minutes, then try again;
- 🔋 Check if the battery is completely discharged (please bring it to your ear – if there is no vibration when connecting the cable, the battery is “zero»);
- 🛠️ Possibly damaged motherboard (requires diagnosis in the service).
Why isn't the button combination working?
On some firmware (for example, custom) power combination + The volume can be reassigned to the Recovery input. If you see an Android menu after holding the buttons, select Reboot. → System. 3. Reboot to Fastboot Mode (for experienced) Fastboot Mode is used to firmware, unlock the bootloader or restore the system: 📲 You need to flash your smartphone through the Mi Flash Tool; 🔓 You need to unlock the bootloader (bootloader); 🛠️ How to log in to Fastboot: Turn off your smartphone (if it doesn't respond, use the hard reboot from Section 2). + Hold on until the image of a rabbit in a hat-eared hat appears (Fastboot logo). To exit Fastboot and reboot to normal mode: 🔁 Press and hold the power button for 10 seconds; 🖱️ Or connect your smartphone to your PC and type in the command: fastboot reboot 4. ADB (without root, if you have access to ADB (Android Debug Bridge, you can reboot your smartphone via command, even if the screen isn't working. This method is useful for automation or when physical buttons are damaged. 9A PC-only USB-cable (use the original cable!) turn on debugging USB: Go to Settings. → About the phone; Tap 7 times on the version MIUI; Back to Settings → Additionally. → For developers; Activate debugging by USB. Open the command line (Windows) or the terminal (macOS/Linux) and type: adb devices If the device appears in the list, follow: adb reboot Alternative commands ADB: Adb Reboot Reboot Recovery adb Reboot bootloader Reboot in Fastboot adb reboot -p Reboot with cache cleaning (analogue of wipe cache) adb shell reboot Soft reboot through the shell 💡Team adb reboot -p Clears the Dalvik cache, which can speed up the system after a reboot, but does not delete user data. 5. Reboot after update MIUI (Features) After installation of updates MIUI Smartphone can automatically reboot or require manual reboot. There's nuances here: 🔄 If the update is installed through Settings → Update system, wait for the notification "Ready to restart»; ⚠️ Do not interrupt the process if the progress bar with the words Optimizing apps is on the screen); 🕒 The first download after the update can take up to 10 minutes - that's OK.Critical error: if after the upgrade the smartphone is stuck on the Xiaomi logo for more than 20 minutes, don't try to reboot it with buttons. This can lead to a blink (complete failure) due to damage to system partitions. Instead: Wait 30 to 40 minutes (sometimes the process ends on its own). If it doesn't work, restart to Recovery (power). + Volume up, and select Wipe cache. In extreme cases, reset via Fastboot). 💡Before upgrading, check the battery power – it should be at least 50%. If the battery runs out during the process, it will be more difficult to restore the smartphone. 6. Frequent errors and how to avoid them The wrong reboot can make problems worse. Consider typical Redmi user errors 9A: ⚠️ Warning: If the smartphone reboots in a loop (infinite rebuke), do not try to "cure" it by resetting it via Recovery. First check if the power button is pressed (for example, because of a case) or if the button plume is damaged. 1: Interrupted Update If You Interrupted Update MIUI (For example, by taking out the battery or pressing the power button, system files can get damaged: 📵 The smartphone does not turn on or gets stuck on the logo; 🤖 Android robot with red exclamation mark appears; ⚙️ Recovery is a feature of E:Failed to mount. /system. Solution: Fastboot your smartphone with the Mi Flash Tool (instructions on the official Xiaomi website). Error 2: Frequent spontaneous reboots if Redmi 9A It is rebooted for no reason, check it out: 🔋 Battery condition (wearing more than 50% leads to sudden shutdowns); 📱 Overheating (use the app) CPU Monitor for temperature check); 🛠️ Firmware damage (try resetting via Recovery). ⚠️ Warning: If the smartphone reboots when connected to charging, do not use it until the battery is replaced or the power controller is diagnosed. FAQ: Answers to Frequent Questions by Redmi 9A It doesn't respond to buttons and doesn't turn on. What do you do? First, check: Connect the original charger for 30 minutes (even if the indicator doesn't burn). Try a hard reboot (power). + volume upwards for 15 seconds). If it doesn't work, plug it into your PC -- if your computer is making a connection sound, your smartphone is alive, but your screen is damaged or your plume is damaged. If nothing works, you can call the service -- you can have a motherboard malfunction. If the button is physically broken, can you reboot the Redmi 9A without the power button? Yes, there are several ways: Through ADB (adb reboot command); Through Settings → For developers → Reboot (if the screen is working); Connecting to Quick Charge charging, sometimes it triggers the reboot. If the button is physically broken, you will need to replace it (coup the data cost 500-800 rubles, if you can reboot it, Recover it from the data itself. ~ Recover it.~ Recover it. Try: Check the folder DCIM/.thumbnails — sometimes thumbnails are saved; Use recovery software: DiskDigger, Recuva (connect your smartphone to your PC); If sync with Google Photos or Mi Cloud is enabled, check the cloud. In the future, set up an automatic backup in Settings → Google → Backup. The smartphone reboots in a loop after the firmware. What do you do? This bootloop is a typical problem after a failed firmware. Solutions: Re-sweep the smartphone through Fastboot using the Mi Flash Tool (select Clean All option); If the firmware is customized, go back to the stock MIUI; Check if the bootloader is unlocked (if not, unlock it through Xiaomi's official tool). If it doesn't help, maybe the boot section is damaged, you'll need help. How to turn off the automatic reboot on schedule? MIUI has an automatic reboot function to optimize the system. To disable it: Go to Settings → Advanced Settings → Auto Reboot; Deactivate the switch; If there is no point, check the settings in Security → Optimization. On some firmwares, this feature is hidden - use the settings search (the magnifying icon at the top).