How to turn on Xiaomi Redmi 9A: 5 proven ways and solving typical problems

Xiaomi Redmi 9A is one of the most popular budget smartphones, but even it sometimes refuses to turn on. The reasons can vary from a dead battery to software failures. In this article, we will discuss all possible ways to turn on the Redmi 9A, including forced reboot, charging off and recovery via Fastboot. You will also learn how to diagnose the problem by indicators and what to do if the phone does not respond to the power button.

This material will be useful for both beginners and experienced users, avoiding general tips like “check charging” and instead giving specific instructions tailored to the Redmi 9A (codenamed dandelion) model, all of which are tested on MIUI 12/13/14 firmware and are relevant for 2026.

1. Standard turn on: what to do if the phone does not respond to the button

If the Xiaomi Redmi 9A is completely dead or has been manually turned off, it is enough to turn on:

1. Connect the charger (original 10W adapter or Quick Charge 3.0 compatible).
2. Wait at least 15-20 minutes – even if the indicator does not burn, the battery could run out to zero.
3. Press the power button for 8-10 seconds until the Redmi logo appears.

If the phone doesn’t turn on after that, check:

• 🔌 Charging cable and adapter: try another charger (preferably original). 9A Cheap electronics with AliExpress often don’t work.
• 🔋 Battery status: If the phone was dead for more than a month, the battery could go into "deep discharge", in which case you will need to "resuscitate" through high voltage (more on this below).
• 📱 External damage: inspect the connector USB-C If you have oxidation or debris, clean only with a dry toothpick!

⚠️ Note: Do not use "fast charging" from other devices (e.g, VOOC or Dash Charge. 9A does not support proprietary protocols and this can cause overheating.

2. Forced reset (Hard Reset) without data loss

If the phone is stuck on the MIUI logo or the screen is black, but the device vibrates when you connect the charger, the forced rebuke will help, and this method doesn't delete the data, but resets all the time processes.

Instructions for Redmi 9A:

1. Turn off the charger (if connected).
2. Press the Power + Volume Up buttons at the same time.
3. Hold on for 15-20 seconds until the screen goes out and the Redmi logo appears.
4. Release the buttons – the phone should boot in normal mode.

If the combination does not work, try an alternative:

• 🔄 Power + Volume Down (Loudness Down) – Hold 10-15 seconds.
• 🔄 Power only – press for 30 seconds (sometimes helps with a dead screen).

Turn off the charger |

Check that the buttons are not stuck |

Make sure the screen is not physically damaged |

Wait 1 minute after a failed attempt before repeating-->

After a successful reboot, check out:

• 📊 Battery Charge in Settings (Settings) → If the level is below 5%, plug in the charger and wait at least 20 hours%.
• 🔄 System Updates: Go to Settings → The phone. → Update the system and install the latest patches.

⚠️ Warning: If the phone turns on after a forced reboot but shuts off immediately, it is a sign of a malfunction of the battery or motherboard.

3. Enable via Fastboot mode (if the phone is determined by PC)

If the Redmi 9A doesn’t turn on, but the computer can see it when you connect to a USB connection (charging indicator lights up or a connection sound is made), you can try turning it on via Fastboot. This method requires a PC with Xiaomi drivers installed and the Mi Flash Tool program.

Step-by-step:

1. Download and install the Mi Flash Tool (the official Xiaomi website).
2. Connect your phone to your PC off (hold the Volume Down clamped when connected to log into Fastboot).
3. Open Command Prompt (Win + R → enter cmd) and execute the command: fastboot devices If the device is determined (the serial number will appear), proceed to the next step.
4. Enter the command to reboot: fastboot reboot

If the team fails, try an alternative method:

• 🔧 In Mi Flash Tool, select the Clean All option and press Refresh.
• 🔧 Use the command: fastboot oem edl to switch to mode EDL (Careful: this mode is designed for experienced users!

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If your computer can’t see your phone in Fastboot mode, try using another one. USB-cable (preferably original) or port USB 2.0 (they are more stable for firmware).

4. "Reanimation" of a deeply discharged battery

If the Xiaomi Redmi 9A doesn’t turn on and respond to charging, a possible reason is a deep battery drain, in which case a standard charger won’t help, as the battery controller blocks charging at voltages below 3.0V.

Recovery will require:

• 🔌 "Frog” (universal charger) or USB-voltage-adjusted.
• 🔋 power supply with exit 4.2V–5V (You can use the power supply from the router).
• 🛠️ Screwdriver for disassembling the phone (if you disconnect the battery).

Step-by-step algorithm:

1. Disconnect the battery from the motherboard (or connect the frog to the battery contacts).
2. Exercise the 3.7V-4.0V voltage to the battery for 5-10 minutes.
3. Connect the original charger and try to turn the phone on.

⚠️ Note: Do not apply the battery voltage higher 4.2V — If you're not sure what you're doing, call the service center.

5. Diagnosis by indicators: what flashing and vibrations mean

Xiaomi Redmi 9A has a built-in diagnostic system that helps determine the cause of malfunction by the behavior of the indicator and vibration.

If the indicator does not burn at all, check:

• 🔌 Charging port malfunction: connect your phone to your PC – if your computer makes a connection sound, the port is running.
• 🔋 Battery status: Disassemble the phone and check if the battery is swelling (if so, don’t turn it on!).
• 📱 Power button: sometimes it sticks or the contact goes away. Try pressing it carefully several times.

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If the phone vibrates but doesn’t turn on, it’s almost always a software problem (running or crashing the bootloader), and if the indicator doesn’t vibrate or burn, it’s a hardware problem (battery, board, port).

6.When to contact the service: signs of serious malfunctions

Not all problems with the Redmi 9A can be solved by yourself.

• 🔥 Phone warms up when charging is connected (short circuit risk).
• 💥 The battery is swelling or shows signs of oxidation.
• 📵 The phone is not detected by the computer even in Fastboot mode.
• 🔄 After the firmware through EDL The device is not switched on (possible "brick").

Average cost of repairs in 2026:

Before the service visit:

1. Make a backup copy of the data (if the phone is turned on somehow).
2. Write down the IMEI (on the box or under the battery) – this will help restore it after the firmware.
3. Check if the service center has access to official firmware Xiaomi (not everyone knows how to work with EDL).

FAQ: Answers to Frequent Questions