Tips and tricks to fix XIAOMI REDMI K40 problems. This is 5G smartphone that powered by Qualcomm SM8250-AC Snapdragon 870 5G processor with dedicated GPU (graphic processor unit) Adreno 650 for graphic rendering. This phone work with dual simcard slot standby together.

This phone has good display view because it use Super AMOLED 6.67 inches Full HD+ resolution at 1080 x 2400 pixels, protected using Corning Gorilla Glass 5. We can see small punch hole for 20 megapixel selfie camera at top of the screen. There are some hardware or software issues that happen on XIAOMI REDMI K40, therefore we will try to give more reviews and information about how to solve XIAOMI REDMI K40 (M2012K11AC / M2011K2C) troubles at community.


What are Advantages of XIAOMI REDMI K40 Specifications and Features:

  • 4G LTE + 5G
  • LCD 6.67 inches
  • Internal memory 128 GB with 6 GB or 8 GB RAM
  • Internal memory 256 GB with 8 GB or 12 GB RAM
  • Main Camera Triple 48 MP f/1.8 + 8 MP f/2.4 + 5 MP f/2.4
  • Front camera 20 MP for selfie photography
  • Processor Octa-core 1×3.2 GHz Kryo 585 & 3×2.42 GHz Kryo 585 & 4×1.80 GHz Kryo 585
  • GPU Adreno 650
  • Operating system Android 11
  • Battery Li-Po 4520 mAh



How to Fix or Problem Solving for Recovery XIAOMI REDMI K40 hang or not responding or malfunctions or stuck or freezing or bricked ?

We can use 128 GB or 256 GB internal storage options. Basically having 128 GB is already big enough, but because XIAOMI REDMI K40 does not have external memory slot, then we can not use MicroSD / MicroSDXC card for extend the storage, therefore if we have budget, buy 256 GB internal storage is very recommended.

We can find many games or applications for run on XIAOMI REDMI K40. But some applications are fake that may contain viruses or malware. Please read as many user reviews as possible if we really need to download. Otherwise, our XIAOMI REDMI K40 (M2012K11AC / M2011K2C) will get troubles like become slowly or hang or stuck or bricks or bootloop or frozen or LCD touch screen not responsive. These kind of apps will not get “Verified by Play Protect” from Google Play Store.

What do we have to do? The first steps is try to do soft reset or reboot or restart to clean temporary files or caches from this phone. After XIAOMI REDMI K40 finish reboot / restart then please try to install recommended Antivirus from Google Play Store like AVAST or NORTON. We only need to install one Antivirus. This antivirus apps will try to scan all installed applications and give recommendation setting to our phone.

However, if our phone still get this problems, 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 K40. For safety reasons, please do not install any unknown APK files, because it is very easy to make our phone getting trouble.


Recommended Antivirus For XIAOMI Smartphone


How to Force Shutdown or Force Soft Reset or Reboot or Restart XIAOMI REDMI K40 ?


As high end smartphone, XIAOMI REDMI K40 has at least 8 GB RAM for multitasking. However, some installed apps may get crash or corrupt then make XIAOMI REDMI K40 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 K40 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 K40 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 K40 ?

We can not use MicroSD for backup. However, we can connect our phone to computer using USB data cable and after our computer recognize our XIAOMI REDMI K40, 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 K40 file manager

If our XIAOMI REDMI K40 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.


More Complete Solutions To Backup & Restore Data / Photos / Contact On XIAOMI REDMI K40



How to Boot Recovery Mode at XIAOMI REDMI K40 ?

If we need to boot our XIAOMI REDMI K40 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 K40 with software menu:

  1. Turn on the XIAOMI REDMI K40
  2. Please make sure battery capacity more then 50% or better fully charge
  3. Backup important data at XIAOMI REDMI K40 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 K40 will do the hard reset or master format to factory default process.


hard reset xiaomi redmi k40

#Option 2, Hard Reset XIAOMI REDMI K40 with Hardware Button Key to Recovery Mode

  1. Turn Off XIAOMI REDMI K40
  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 K40 finish the process and the phone will start again like new


How to Unlock or Fix or Bypass or Solutions for XIAOMI REDMI K40 forgot password code or security lock screen pattern or pin (lost password)?

There are a lot of important data will be available inside our internal memory. We also will have many photos videos that taken from 48 megapixel f/1.8 for standard wide + 8 megapixel f/2.2 for macro + 5 megapixel 50mm for macro. We have to secure all private and confidential data or applications from unauthorized people when XIAOMI REDMI K40 stolen or lost or away from us.

Fingerprint is recommended to use because it is fast and easy to access. Face unlock work with 20 megapixel front camera if our fingerprint is hard to recognize. Please choose secondary protections for backup like screen lock pattern or password or pin.

We have to know if we reboot or restart our XIAOMI REDMI K40 (M2012K11AC / M2011K2C), then fingerprint or face detection will not work from beginning. We have to unlock using secondary protections.  However, 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 K40 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 very important for latest Android smartphone, because it is important to secure our phone when lost or stolen. When we performing hard reset using hardware button combination key, we need to make sure that this phone is belong to us. After finish reformat, we need to bypass FRP. Please Verify your account with previous Google Account username and password.

Therefore we have to remember carefully our Google / Gmail username and password. We also recommended to activate or create XIAOMI ACCOUNT at XIAOMI REDMI K40, because it can help us to bypass forgotten security protections.


Is That Any Secret Code for Doing Format XIAOMI REDMI K40 ?

There is no secret hidden code for XIAOMI REDMI K40 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 K40 ?

There are two kind of memory on XIAOMI REDMI K40. 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 K40 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 K40 Stronger, Life Longer and Not Fast to Drain ?

Because XIAOMI REDMI K40 use 7 nm FinFET processor with Qualcomm SM8250-AC Snapdragon 870 5G, then Xiaomi confident to use 4520 mAh battery capacity. Basically this battery is enough for work full one day without recharge for standard activity. But if we use this phone too much for playing games or watching movie several hours continuously, then our battery will not enough.

If we want to make XIAOMI REDMI K40 (M2012K11AC / M2011K2C) battery work more longer, we need to do some adjustment like make LCD screen brightness as low as possible and disable all not use connections like GPS or NFC or Bluetooth or Wifi.



  • How to Hard Reset or Master Format XIAOMI REDMI K40 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 K40, 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 K40 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 K40 ?

    Please follow this link For Reset Xiaomi Mi Account

The information from this page describe about m2011k2c unlock. If you need another resource for hard reset, use search function at this homepage or find from our related posts.