Xiaomi Redmi 9 is one of the most popular budget smartphones, but even with it, there can be situations when the device refuses to turn on. The reasons vary from banal battery discharge to software failures after an update. In this article, we will discuss all possible ways to turn on Redmi 9, including forced reboot, charging in a switched-off state and even recovery via Fastboot.
It's important to understand that the algorithm of actions depends on the current state of the phone: whether the charging indicator is on, whether the screen is responding to the connection to the PC, or the device is completely "dead." We will look at each scenario separately so that you can determine exactly what to do in your situation. If the phone does not turn on after a fall or moisture is already a matter of hardware repair, and such cases are beyond the scope of this manual.
1. Standard Turn on: What to do if the phone is turned off
If Redmi 9 is turned off on your initiative (for example, after a long inactivity or manual shutdown), it is easiest to turn it on in the standard way.
- 🔋 Make sure that the phone is at least charged. 5-10% — At full discharge, it will not respond to the power button.
- 📱 Press the power button (located on the right end) on 3-5 A few seconds before the Redmi logo appears.
- ⏳ Wait for the system to load fully – it may take until 1-2 minutes if the device has not been rebooted for a long time.
If nothing happens after holding the power button, check:
- 🔌 Is the charging cable connected (sometimes the phone doesn't turn on without recharging).
- 🔊 Does the case block access to the button (especially relevant for thick silicone models).
- 💡 Whether the charging indicator is on when connecting to the network – if not, the problem may be in the battery or cable.
2. Forced reboot: if the phone freezes
If Redmi 9 doesn't respond to presses, the screen freezes on the logo, or only the sensor works, but not the buttons, hard reset will help, which is not deleting data, but simply restarting the system.
For forced reboot:
- Press the Power + Volume button at the same time.
- Hold them for 10-15 seconds until the screen goes out and reboots.
- Release the buttons when the Redmi logo appears.
If the phone is stuck in the boot phase (endless logo), repeat the procedure 2-3 times. If this does not help - the problem may be in the damaged firmware, and you will need to restore through Fastboot (more about this below).
Make sure your phone is not charging (turn off the cable)
Check if the volume button is accidentally pressed
Wait 30 seconds – sometimes the system will repair itself
Try to connect to a PC – perhaps defined as a device-->
3.Switching on after full discharge: how to "resuscitate" the battery
If the Redmi 9 is zero and does not respond to charging, it does not always mean a malfunction.Lithium-ion batteries have deep discharge protection, and sometimes you need to "wake up" the power controller.
Do the following:
- Connect your phone to the original charger (or Quick Charge 3.0).
- Leave a minimum of 30-40 minutes on charging, even if the indicator is not on.
- Try holding the power button for 20-30 seconds (sometimes it works).
- If it doesn’t help, connect to the PC through USB: sluggish USB-The port "wakes up" the controller.
Critical information: if after 2-3 hours of charging the phone does not show signs of life (it does not warm up, the indicator does not burn), most likely, a battery replacement or repair of the power board is required.
| Symptoms. | Possible cause | Decision |
|---|---|---|
| Charging indicator flashes red | Deep discharge or battery failure | Charge 1-2 hours with the original RAM, then try to turn on |
| The phone is warming up, but it won't turn on. | Short circuit or failure of the power controller | Remove the service – self-repair is dangerous |
| The screen is white but the screen is black. | Firmware failure or damage to the display plume | Try Fastboot or reset your settings |
4.Fastboot Recovery: If the phone doesn't boot
If Redmi 9 is turned on but doesn’t load beyond the logo (or goes to bootloop), Fastboot mode will help.
Instructions:
- Turn off the phone (if it doesn’t respond, make a hard reset).
- Press Power + Volume down before the Fastboot logo appears.
- Connect your phone to a PC with Xiaomi drivers installed and the Mi Flash Tool program.
- Download the official firmware for Redmi 9 (codename Lancelot) from Xiaomi’s website.
- In the Mi Flash Tool, select Clean All mode and flash your phone.
⚠️ Attention: Fastboot firmware deletes all data from the device! If there were important files on the phone, try extracting them through the device first ADB (If the phone is determined by PC).
How do I find out the code name of the model?
5. Resetting: If the phone turns on but doesn't work properly
If Redmi 9 is on but constantly brakes, spontaneously reboots or does not respond to the sensor, resetting to factory settings will help, which will delete all data, but return the phone to its original state.
You can make a reset in two ways:
- 📱 Through the settings menu: Go to Settings → The phone. → Setting reset. Select Erase all data. Confirm the action and wait for the reboot.
Through Recovery:
- Turn off the phone.
- Press Power + Volume Up to Enter Recovery.
- Select Wipe Data → Wipe All Data (manage volume buttons, confirmation – power button).
Self-repair in such cases is fraught with:
- Damage to the board when trying to disassemble the phone without experience.
- Loss of warranty (if it is still valid).
- Compounding the problem (for example, with improper soldering of plumes).
If the phone goes to bootloop after the upgrade, it's likely that the firmware is not installed correctly, and only a complete firmware reflash will help.