Redmi Note9 won t turn on after shutting down?

1. If you are stuck in the white rice interface for a long time and there is no Android display at the bottom of the screen, or you cannot turn on the computer due to human circumstances (water ingress, collision, etc.), it is recommended that you apply for after-sales testing;

2. If plugged in the original power adapter.

charger), without performing any action, the phone heats up.

It is recommended that you unplug the charger and apply for after-sales testing;

3. Press and hold the power button for more than 10 seconds to try to force restart;

4. Determine whether the shutdown is caused by too low power, if so, please use the original charger to charge for half an hour and then try to restart it;

5. If you are sure that the phone or tablet has power, press and hold the volume up + power button at the same time in the shutdown state, or press and hold the volume down + power button at the same time to see if you can enter recovery mode and fastboot mode, if you can enter the above two modes, press and hold the power button for more than 10 seconds when you are in both modes to try to restart;

6. If you press and hold for 10 seconds and still can't turn on, you can enter recovery mode to clear the data and try, please back up the data in advance.

If you turn on Xiaomi Cloud Service.

You can log in to Mi Cloud.

backup data);

7. If the clear data is still invalid, and the phone has been logged in to Xiaomi and unlocked the BL lock, you can try the miflash line brush, and make a data backup before the line brush;

PS: If the above methods do not work, it is recommended that you carry out after-sales treatment.

Motherboard defects are common, Xiaomi officially does not admit it, there is only one way to repair it, and that is to spend 600 to replace the motherboard. It's okay during the warranty period, but you can only change the phone outside the warranty period. This model of mobile phone is generally guaranteed to have this problem within half a year to a year and a half, and I swear never to use any of Xiaomi's products in the future.

Summary. It is recommended to unplug the battery and reinstall it again to see if it can be turned on normally. 2. Whether it can enter recovery. How to enter recovery: When the device is turned off, first press and hold the "volume up button" and try it.

It is recommended to unplug the battery and reinstall it again to see if it can be turned on normally. 2. Whether it can enter the hail into the recovery. How to enter recovery: In the shutdown state, first press and hold the "Bird Late Volume Increase Button" and try it.

1. The Redmi Note phone cannot be turned on, and the card MI appears, which may usually be caused by a system crash or a hardware failure such as the font. 2. In this case, it is recommended that the user try to flash the machine first to see if it can restore the normal device in the hand. 3. Users can go to the official website of MIUI, ** the latest version of the system, and then import the root directory of the mobile phone memory card.

4. Turn off the vertical laughing machine, press and hold the volume + power button at the same time to turn on the machine, the screen lights up, release the power button, and keep pressing and holding the volume button to enter recovery mode. 5. Select Chinese Simplified and confirm, volume key select power key to confirm, select will install to system and confirm. 6. Select Confirm Fiber Quietly and wait for completion, and then select Restart to the system to enter the new system.

7. If the flashing cannot be completed or the system is still unable to enter the system after flashing, it is recommended that the user send the mobile phone to the brand customer service for testing and repair.

Summary. Hello dear <>

General reasons why Xiaomi mobile phones won't turn on: 1. There is a problem with the power button. 2. The phone freezes and freezes.

3. The system crashes. 4. Hardware failure. Workaround:

1. If the Xiaomi phone can't be turned on, you can press and hold the power button and the volume + button at the same time to force restart the phone, and you can return to normal <> after restarting

2. If it still stays on the boot screen after restarting, you can try to restore the phone to factory settings. Pull out the phone battery to power off and turn it off, then install the battery, press and hold the volume + and power keys at the same time to enter recovery mode, and then select Chinese Simplified - Clear Data - Clear all data, and then restart the phone to restore normal <>

3. If you still can't enter the system after restarting after clearing all data, you can connect to the computer to flash the phone, and flash the new system for the mobile phone to solve the problem; For specific flashing tutorials and flashing packs, you can visit Xiaomi's official forum to get <>

What should I do if the Redmi Note9 won't turn on.

Hello dear <>

General reasons why Xiaomi mobile phones won't turn on: 1. There is a problem with the power button. 2. The phone freezes and freezes.

3. The system crashes. Slim hand 4, hardware failure. Workaround:

1. If the Xiaomi phone does not turn on the hungry brigade, you can press and hold the power button and the volume + button at the same time to force restart the phone, and the normal <> can be restored after restarting

2. If it still stays on the boot screen after restarting, you can try to restore the phone to factory settings. Pull out the phone battery to power off and turn it off, then install the battery on the rotten bench, press and hold the volume + and power keys at the same time to enter the recovery mode, and then select Chinese Simplified - Clear Data - Clear all data, and then restart the phone to restore normal <>

3. If you still can't enter the system after restarting after clearing all data, you can connect to the computer to flash the phone, and flash the new system for the mobile phone to solve the problem; For specific flashing tutorials and flashing packs, you can visit Xiaomi's official forum to get <>

If the above can't bury the leakage to solve the slug: the mobile phone hardware will also lead to staying in the boot interface, unable to enter the system, such as motherboard chip failure, processor, memory failure, etc., this situation needs to contact Xiaomi's after-sales service for maintenance to solve the Oh pro <>

Expand your knowledge: Redmi Note 9 uses an inch waterdrop full screen, with a total of four colors: fog blue, dawn orange, smoke wave blue, and feather ink black; The radial "starlight" design of the back shell forms a silk-like lustrous texture, and different light angles present visual changes.

Redmi Note 9 is equipped with Qualcomm Snapdragon 662 processing code collapser, equipped with LPDDR4X and flash memory, rear matrix triple camera, respectively 48 million pixel main camera, slow 8 million pixel ultra wide angle and a 2 million pixel depth of field lens, which is the front 8 million pixel AI lens.

Summary. Good afternoon, dear I am happy to serve you, and I will find out for you that the reasons and solutions for Redmi note9 will not turn on are as follows:Reason:

1. There is a problem with the power button. 2. The phone freezes and freezes. 3. The system crashes.

4. Hardware failure. Solution: 1. If the Xiaomi phone can't be turned on, you can press and hold the power button and the volume + button at the same time to force restart the phone, and it can be restored to normal after restarting2. If the phone still stays on the boot screen after restarting, you can try to restore the phone to factory settings to solve the problem; Pull out the mobile phone battery to power off and shut down, then install the battery, press and hold the volume + and power keys at the same time, enter recovery mode, and then select Chinese Simplified - Clear Data - Clear all data, and then restart the phone, you can return to normal 3, if you still can't enter the system after restarting after clearing all data, you can connect the computer to flash the phone, and flash the new system for the mobile phone to solve; For specific flashing tutorials and flashing packs, you can visit Xiaomi's official forum to get <>

I hope my answer will be helpful to you! 

The phone won't turn on.

What should I do if the Redmi Note9 won't turn on.

Good afternoon, dear I am glad to serve you, and I will find out for you that the reasons and solutions for Redmi note9 cannot turn on are as follows: Reasons: 1, there is a problem with the boot button.

2. The phone freezes and freezes. 3. The system crashes. 4. Hardware failure.

Solution: 1. If the Xiaomi phone can't be turned on, you can press and hold the power button and the volume + button at the same time to force restart the phone, and it can be restored to normal after restarting2. If the phone still stays on the boot screen after restarting, you can try to restore the phone to factory settings to solve the problem; Pick out the mobile phone battery and turn off the power, then install the battery, press and hold the volume + and power keys at the same time, enter recovery mode, and then select Chinese Simplified - Clear Data - Clear all data, and then restart the phone, you can return to normal 3, if you still can't enter the system after restarting after clearing all data, you can connect the computer to flash the phone, and flash the new system for the mobile phone to solve; The specific flashing tutorial and flashing package can be obtained by visiting the official Xiaomi forum in the main hall. Kiss, I hope my answer will help you!

Your situation may be a hardware problem, which will also lead to staying in the boot interface and not being able to enter the system, such as motherboard chip failure, processor, memory failure, etc., this situation needs to be solved by contacting Xiaomi's after-sales service for maintenance.

The above solutions still don't work.

Then it is recommended that you apply for after-sales testing.

Good. First of all, we search for Xiaomi's official website on the Internet, and then open it to enter; After coming to the official website, we will drag the webpage to the bottom, and then find the service network sales and travel points under Xiaomi Home, and click to enter; After entering the maintenance outlet, we need to select the corresponding province to query the service outlet; After selecting the province, Town Oak will give a detailed repair network for each city in the interface, choose the one closest to you, and then you can go to report for repair.

If there is no response after charging, it may be a motherboard malfunction, and if it can display English or other screens, it may be a system problem. You can go to the after-sales point for inspection and maintenance.

**Redmi Note9 Pro Pro Max, powered by Snapdragon 720G chip. **Redmi Note 9 Pro Max is equipped with Qualcomm Snapdragon 720G+LPDDR4X+UFS, and the storage plan is 6GB+64GB, 128GB and 8+128GB. Rear: 64 million pixel main camera + 8 million pixel ultra wide angle + 5 million pixel macro + 2 million pixel depth of field quad camera scheme.

front-facing 32 million pixel single camera; It has 2x2 MIMO WiFi, integrated Z-axis vibration, and retains the headphone jack; The battery capacity is 5020mAh and comes standard with 33W fast charging; It has 3 colors: Interstellar Black, Aurora Blue, and Glacier White.

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Redmi note9 is a performance mobile phone released by Xiaomi at the end of 2020, and it has been released for more than a year now, and now it has entered a large number of maintenance periods, and recently received a lot of Redmi note9 mobile phones that suddenly have a black screen and do not turn on to be sent for maintenance, today weKunming Jiuyi mobile phone repair

The customer sent the Redmi note9 mobile phone for repair, the customer described that the mobile phone was used normally and suddenly the screen did not turn on, and the mobile phone did not respond to the charger plugged in, the mobile phone has been sent to our Kunming official Xiaomi after-sales maintenance point to detect the motherboard problem, because the mobile phone has passed the warranty period, the repair can only be paid to replace the motherboard after the sale, the customer thinks it is too expensive to send it to us for repair.

Remove the motherboard, use the DC power meter to turn on and find that the current is abnormal, directly remove the shield near the hard disk, use the multimeter to start measuring the surrounding lines near the font, when measuring a capacitor C2004, find that the capacitor is short-circuited, as shown in the following figure:

Open the mobile phone repair schematic, after inquiry, it was found that this capacitor is just the power supply filter capacitor of the font library, if this capacitor is damaged, it will cause the power supply of the entire hard disk font library to be abnormal, and all the capacitors that have been measured in this line are in a state of short circuit.

Directly use the air gun 280° heating to remove this capacitor, use the multimeter again to measure that the line is no longer in a short circuit, use the DC power meter to turn on and find that the current of the mobile phone is normal, measure the C2004 voltage, lock the fault point here, and replace the capacitor with the same specification to solve the problem.

Clean up the motherboard, the whole machine is installed and tested, the mobile phone is turned on normally, all the functions of the test are normal, and the repair is over.

Here it isKunming Jiuyi mobile phone repair

Here's how to do it: Method 1: Double clear by entering recovery mode.

1.In the power-off state, press and hold the power button and volume + buttons of the phone at the same time. 2.

Release the keys when the screen lights up and wait for the recovery mode to enter. 3.Use the Volume+ and Volume—keys to adjust the bright bar to "Wipe Data Factory Reset", i.e. "Clear Data Restore Factory Settings", and press the Power button to confirm.

4.Use the Volume+ and Volume—keys to adjust the light bar to "yes, delete all user data" and press the power button to confirm. 5.

Wait for a while until the screen appears, select "Reboot System Now" to restart your phone, and press the power button to confirm. 6.Wait for your phone to reboot into the system.

Method 2: Enter fastboot. Ways to get into fastboot:

In the shutdown state, first press and hold the "home button", then press and hold the "volume down button" and then press and hold the "shutdown button", and then let go when the boot screen appears, you can enter fastboot. Connect your phone to the computer and flash a complete system package. (Please find a professional to flash the machine) Method 3:

If this is still the case, enter the after-sales process and detect the fault of the mobile phone.