Tips and tricks to fix XIAOMI REDMI K40S problems. This phone comes with AMOLED screen 6.67 inches size and has high refresh rate 120Hz. It is protected by Corning Gorilla Glass 5 for scratch protections. When the first time open from the box, the Android 12 operating system is ready to use together with MIUI 13.

This phone is powered by high-end processor Qualcomm SM8250-AC Snapdragon 870 5G with dedicated GPU (graphic processor unit) Adreno 650. It has splash of waterproof at the body. We will give more solutions and information about how to solve troubles of XIAOMI REDMI K40S at www.hard-reset.org community.

 

What are Advantages of XIAOMI REDMI K40S Specifications and Features:

  • GSM 3G HSDPA, Dual SIM Card GSM GSM / CDMA
  • 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 + 2 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 12
  • Battery Li-Po 4500 mAh

 

 

How to Fix or Problem Solving for Recovery XIAOMI REDMI K40S hang or not responding or malfunctions or stuck or freezing or bricked ?

XIAOMI REDMI K40S is high-end smartphone that use Snapdragon 870 processor. It has two big internal memory options with 128 GB or 256 GB. All version does not have external memory card slot for MicroSDXC. There are many games and applications that we can download from Google Play Store. But please be careful before download any new or not famous apps. Why?

Because some of bad developers create fake games or apps that may contain viruses or malware that can stole our data or install some unknown apps without notifications. That bad apps also can make some 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.

If we get this problems, we have to try clean temporary files and caches by performing soft reset or restart or reboot. When restart finish, please install one recommended antivirus like AVAST or NORTON on XIAOMI REDMI K40S, this antivirus will scan for suspected applications and give recommended safe setting options.

When the problems still happen, then we have to do hard reset or master format for reinstall the operating system to factory default. Please note, reformat will remove or erase all installed applications and data from our XIAOMI REDMI K40S. For safety reasons, please do not install any APK from unknown sources, because it can make some troubles. Reformat also will remove Google account and Xiaomi account from this phone.

 

Recommended Antivirus For XIAOMI Smartphone

 

How to Force Shutdown or Force Soft Reset or Reboot or Restart XIAOMI REDMI K40S ?

 

When we want to run many multitasking applications, then we need to have big RAM. XIAOMI REDMI K40S has 6 GB or 8 GB or 12 GB RAM options. More bigger is better for running multitasking applications. However, when some installed applications crash or corrupt or stuck, then the LCD touch screen may not responsive with our finger touch or hang. We need to clean temporary files and caches.

When it stuck or freezing, please try to press and hold POWER BUTTON until XIAOMI REDMI K40S turning off or shutdown by itself. We also can try to press POWER BUTTON + VOLUME DOWN together to force turn it off.

When our phone still work properly, but we want to clean temporary files and caches, please press and hold POWER BUTTON until pop-up menu appear and choose Shutdown / Power off / Reboot. Soft reset or restart process will not remove any installed apps and important data, therefore we can do this process anytime we want.

 

How to backup data or Contact at XIAOMI REDMI K40S ?

We can connect our phone to computer using USB data cable and after computer recognized our XIAOMI REDMI K40S, 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 K40S file manager

If our XIAOMI REDMI K40S 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 K40S ?

 

If we need to boot our XIAOMI REDMI K40S 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 K40S with software menu:

  1. Turn on the XIAOMI REDMI K40S
  2. Please make sure battery capacity more then 50% or better fully charge
  3. Backup important data at XIAOMI REDMI K40S 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 K40S will do the hard reset or master format to factory default process.

 

hard reset xiaomi redmi k40s

#Option 2, Hard Reset XIAOMI REDMI K40S with Hardware Button Key to Recovery Mode

  1. Turn Off XIAOMI REDMI K40S
  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 K40S finish the process and the phone will start again like new

 

How to Unlock or Fix or Bypass or Solutions for XIAOMI REDMI K40S forgot password code or security lock screen pattern or pin (lost password)?

Because this phone has big internal memory with 128 GB or 256 GB and powered by Qualcomm SM8250-AC Snapdragon 870 5G process, then we will have many installed applications and data. We also will have many private photos and videos that shoot with three back side cameras and single front camera. We have to make sure all confidential data always secure from unauthorized people.

There are fingerprint at side body or 20 megapixel front camera for facial recognizing. We must choose secondary protections like screen lock pattern or pin or password for backup. Why? Because the fingerprint or face detection will not work after finish reboot or restart. However, the problems will start happen when we can not unlock this phone or forgot screen lock pattern / password pin protection or fingerprint can not work. What should we do?

When we forgot security protection, we have to do hard reset or reformat using hardware button combination key like steps at #option 2 above. This phone already use Android FRP (factory reset protection) that work for secure all data when this phone lost or force hard reset. Therefore, we have to bypass FRP using previous Google account username and password after performing hard reset.

 

Is That Any Secret Code for Doing Format XIAOMI REDMI K40S ?

There is no secret hidden code for XIAOMI REDMI K40S to make it back to factory default. We have to do the options above to hard reset this phone.

 

How to Format or Erase Phone Memory at XIAOMI REDMI K40S ?

If we want to remove all installed applications and all data, then we have to do hard reset using menu Setting like steps at #option 1 above. Please choose to erase All files on the phone. It will remove all data at internal memory (or external memory if available).

 

How to Make Battery of XIAOMI REDMI K40S Stronger, Life Longer and Not Fast to Drain ?

With 4500 mAh battery capacity, XIAOMI REDMI K40S can work for one day full without recharge. However, if we want to use this phone too active for several hours continuously, then the battery will not enough. We have to do some adjustment like make LCD screen brightness as low as possible and turn off all not use connections like GPS or Wifi or NFC or Bluetooth.

 

FAQ of XIAOMI REDMI K40S

  • How to Hard Reset or Master Format XIAOMI REDMI K40S 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 K40S, 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 K40S 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 K40S ?

    Please follow this link For Reset Xiaomi Mi Account