Tips and tricks to fix XIAOMI REDMI NOTE 9 4G (QUALCOMM Version) problems. Not everyone need 5G at this time, because some country still happy with already available 4G LTE infrastructures. We can buy this 4G LTE version with cheap prices but get good performance because this phone use Qualcomm SM6115 Snapdragon 662 processor with dedicated GPU (graphic processor unit) Adreno 610 for graphic rendering. Please do not confuse with previous version Mediatek version, XIAOMI REDMI NOTE 9 4G which is introduce at November 2020 use Qualcomm processor.

The screen use 6.53 inches Full HD+ at 1080 x 2340 pixels resolutions. We can find small notch drop at top screen for 8 megapixel selfie front camera. This phone use Android 10.0 as factory default operating system together with MIUI 12. Some users get issues with XIAOMI REDMI NOTE 9 4G software or hardware. We will try to give more solutions, reviews and information about how to solve XIAOMI REDMI NOTE 9 4G troubles at community.


What are Advantages of XIAOMI REDMI NOTE 9 4G Specifications and Features:

  • 4G LTE
  • LCD 6.53 inches
  • Internal memory 128 GB with 4 GB or 6 GB or 8 GB RAM
  • Internal memory 256 GB with 8 GB RAM
  • Main Camera Triple 48 MP f/1.8 + 8 MP f/2.2 + 2 MP f/2.4
  • Front camera 8 MP for selfie photography
  • Processor Octa-core 4×2.0 GHz Kryo 260 Gold & 4×1.8 GHz Kryo 260 Silver
  • GPU Adreno 610
  • Operating system Android 10.0
  • Battery Li-Po 6000 mAh



How to Fix or Problem Solving for Recovery XIAOMI REDMI NOTE 9 4G hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone has two options of internal storage with 128 GB or 256 GB. But we can choose 3 differences RAM start with 4 GB or 6 GB or 8 GB. Special for the very expensive version of XIAOMI REDMI NOTE 9 4G, we can get 256 GB storage with 8 GB RAM. We can use MicroSD / MicroSDXC at dedicated external memory slot.

There are some free and paid apps that we can download from Google Play Store, but be careful with new or not famous applications, because they may contain viruses or malware that can make troubles if installed on our XIAOMI REDMI NOTE 9 4G such as become slowly or hang or stuck or bricks or bootloop or frozen or LCD touch screen not responsive. We must read many user reviews before download. These kind of apps will not get “Verified by Play Protect” from Google Play Store.

What do we have to do? First we have to try force soft reset or reboot or restart to remove temporary files or caches that can make some trouble at this phone. If our XIAOMI REDMI NOTE 9 4G can boot again, then please directly download one good antivirus applications from Google Play Store like AVAST or NORTON, please choose only one we like. The antivirus will try to scan all installed applications and give recommendation setting to our phone.

If the problems still happen, then please do hard reset or master format. Please note, doing hard reset will remove or erase all important data, therefore we have to backup all data first before doing master format. Doing hard reset will remove all Google account from XIAOMI REDMI NOTE 9 4G. For safety reasons, please do not install any unknown APK files, because it is very easy to make our phone getting trouble.


Free Antivirus For XIAOMI Smartphone


How to Force Shutdown or Force Soft Reset or Reboot or Restart XIAOMI REDMI NOTE 9 4G ?


There are three options of RAM on XIAOMI REDMI NOTE 9 4G, with 4 GB or 6 GB or 8 GB. More bigger RAM is better for great multitasking experience. However some installed apps may get crash or corrupt then make XIAOMI REDMI NOTE 9 4G run not normal or stuck or LCD touch screen not responsive with our finger touch. We have to remove temporary files and caches. Please press and hold POWER button until XIAOMI REDMI NOTE 9 4G shutdown or turn off by itself. We also can try to press POWER + VOLUME DOWN together to turn it off. After this phone totally off, then we can press again POWER button to turn it ON.

This process will not remove any important data, therefore we can do this process anytime we want. If our XIAOMI REDMI NOTE 9 4G still can work properly, but we want to clear temporary files and caches from some applications, then please press and hold POWER button until pop-up menu appear, continue choose Shutdown / Power off / Reboot menu.


How to backup data or Contact at XIAOMI REDMI NOTE 9 4G ?

This phone has dedicated memory slot for use with MicroSD. We can choose several important files, photos videos inside XIAOMI REDMI NOTE 9 4G internal memory using Android File Manager and paste on MicroSD.

We can connect our phone to computer using USB data cable and after our computer recognize our XIAOMI REDMI NOTE 9 4G, then please backup all important data using computer file manager application.

We also can use USB flash disk to connect using OTG or USB converter to backup data from internal memory to USB Flash Drive using XIAOMI REDMI NOTE 9 4G file manager

If our XIAOMI REDMI NOTE 9 4G has already signed in with Google account, by default our contact will be synchronize in the background to Google server. Please make sure we check all contact at Google contact server using Internet browse to make sure backup is done.


How to Boot Recovery Mode at XIAOMI REDMI NOTE 9 4G ?


If we need to boot our XIAOMI REDMI NOTE 9 4G go to recovery mode. We can follow the steps at #Option 2 above from steps no.1 until no.4. After that steps finish, then we will find list of menu options, and choose Recover menu or any other menu as what we need to do.


#Option 1, Hard Reset XIAOMI REDMI NOTE 9 4G with software menu:

  1. Turn on the XIAOMI REDMI NOTE 9 4G
  2. Please make sure battery capacity more then 50% or better fully charge
  3. Backup important data at XIAOMI REDMI NOTE 9 4G because all data and applications will be erase or delete
  4. Go to Menu :  Setting > General Setting > Backup and Reset > Factory Data Reset
  5. Choose : Reset Device > Delete all
  6. The XIAOMI REDMI NOTE 9 4G will do the hard reset or master format to factory default process.


hard reset xiaomi redmi note 9 4g qualcomm version

#Option 2, Hard Reset XIAOMI REDMI NOTE 9 4G with Hardware Button Key to Recovery Mode

  1. Turn Off XIAOMI REDMI NOTE 9 4G
  2. Make sure the battery is fully charge
  3. Press and hold POWER BUTTON + VOLUME UP BUTTON key
  4. Release all button after the LCD show Recovery Mode
  5. Use Volume Button to select the option and press POWER Button to Ok or Confirm or Choose. Please choose Wipe all data to finish the Hard Reset or Master Format Steps
  6. Wait until the XIAOMI REDMI NOTE 9 4G finish the process and the phone will start again like new


How to Unlock or Fix or Bypass or Solutions for XIAOMI REDMI NOTE 9 4G forgot password code or security lock screen pattern or pin (lost password)?

With big internal memory, we will download more applications with a lot of confidential data, photos and videos. Something that shared by chatting applications. We also will have many good photos videos which taken from triple camera 48 megapixel wide + 8 megapixel ultrawide + 2 megapixel Bokeh or Depth. Some photos videos are private for anyone. Please secure all data important data from unauthorized users when XIAOMI REDMI NOTE 9 4G away from us or lost or stolen.

We can use side mounted fingerprint sensor or face unlock recognizing for protect this phone. After activate first protections, we need to choose secondary backup protection like screen lock or pin or password. This is important for activating XIAOMI REDMI NOTE 9 4G after finish reboot or restart, because fingerprint or face detection will not work at beginning. The problems will start happen when we can not unlock this phone or forgot screen lock pattern / password pin protection. What should we do?

For security reasons, we can not remove or bypass forgotten security protections at XIAOMI REDMI NOTE 9 4G without hard reset or master format, please follow steps at #Option 2 above to force hard reset or reformat to factory default. New Xiaomi smartphone already use latest Android version which implement FRP (Factory Reset Protection).

FRP is important to secure our phone when it is stolen or lost. Android will ask for Verify your account with previous Google Account after finish performing hard reset or master format. Therefore we have to remember carefully our Google / Gmail username and password. We also recommended to activate or create XIAOMI ACCOUNT at XIAOMI REDMI NOTE 9 4G, because it can help us to bypass forgotten security protections.


Is That Any Secret Code for Doing Format XIAOMI REDMI NOTE 9 4G ?

There is no secret hidden code for XIAOMI REDMI NOTE 9 4G to make it back to factory default. Do the options above to hard reset it.


How to Format or Erase Phone Memory at XIAOMI REDMI NOTE 9 4G ?

There are two kind of memory on XIAOMI REDMI NOTE 9 4G. One is internal memory which by default use for operating system and pre-installed apps and the other one is external memory. If we want to format or erase internal memory data, then please do hard reset like steps at #Option 1 above using menu Setting. Will will reformat our XIAOMI REDMI NOTE 9 4G operating system to factory default and also erase or remove all data and downloaded applications.

To reformat or wipe or erase all data at external memory, we can use menu Setting > Storage > Erase Internal Storage / SD Card. Please always make sure all data has already backup before reformat or wipe everything, because it is hard to recover formatted / wiped data at internal or external storage.


How to Make Battery of XIAOMI REDMI NOTE 9 4G Stronger, Life Longer and Not Fast to Drain ?

XIAOMI REDMI NOTE 9 4G has big battery with 6000 mAh for more then one day active usage. The battery is not removable and has 18W fast charging technology. If we want to make XIAOMI REDMI NOTE 9 4G battery work more longer, then please consider to do some adjustment like make LCD screen brightness as low as possible. We also suggest to disable all not use connections like GPS or Bluetooth or Wifi. For cut selling price, XIAOMI REDMI NOTE 9 4G does not have NFC connection.



  • How to Hard Reset or Master Format XIAOMI REDMI NOTE 9 4G without password / passcode ?

    When the first time setup this phone, the protections is not active. We have to choose and activate security protections, but some users get troubles when they want to reformat or hard reset XIAOMI REDMI NOTE 9 4G, because it always ask the password protections. If we can not remember the password pattern, then please try to do hard reset using hardware button combination key like steps at #option 2 above. It will reformat XIAOMI REDMI NOTE 9 4G from OFF positions. But for security reasons, we have to make sure this phone is belong to us by type our previous Google account after finish hard reset.

  • How to Reset XIAOMI Mi ACCOUNT Forgotten Password at XIAOMI REDMI NOTE 9 4G ?

    Please follow this link For Reset Xiaomi Mi Account