Tips and tricks to fix LG K51S problems. This is non 5G smartphone with maximum 4G LTE data broadband. We can buy single or dual simcard network slot that can standby together. The first operating system use Android Pie 9.0, run at Mediatek processor MT6765 Helio P35 which have dedicated graphic processor unit (GPU) PowerVR GE8320. LG K51S (LMK510EMW) have full screen 6.55 inches LCD is use at front body, it haveHD resolutions 720 x 1600 pixels with small hole at top right for 13 megapixel front camera. Some users have issue with LG K51S hardware or software, therefore we will try to give more solutions, review and information about how to solve troubles of LG K51S (LM-K510EMW) at www.hard-reset.org community.

 

What is Advantage of LG K51S Specifications?

  • Network GSM 3G HSDPA or with 4G LTE
  • LCD 6.55 inches
  • Processor Octa-core 4×2.3 GHz Cortex-A53 & 4×1.8 GHz Cortex-A53
  • GPU PowerVR GE8320
  • Bluetooth / GPS / Wifi / NFC
  • Memory Internal 64 GB
  • RAM 3 GB
  • External memory Slot MicroSD
  • Main Camera Quad 32 MP f/2.0 + 5 MP f/2.2 + 2 MP f/2.4 + 2 MP f/2.4
  • Main Camera Features autofocus & LED flash
  • Front Camera 13 MP for video conference and selfie photography
  • Operating System Android Pie version 9.0
  • Battery Li-Po 4000 mAh

 

How to Fix or Problem Solving for Recovery LG K51S hang or not responding or malfunctions or stuck or freezing or bricked ?

 

LG K51S use Mediatek MT6765 Helio P35 processor with 64 GB internal storage and 3 GB RAM. We can install many applications from Google Play Store like, Therefore we suggest to install only important applications from Google Play Store like Kakaotalk, Line Messenger, WeChat, Facebook, Whatsapp or some other more. We can add more storage with external memory at dedicated MicroSD slot.

We need to be careful before download new or not famous applications, because some of them may contain viruses or malware that can make troubles at our LG K51S (LMK510EMW) like become slowly or hang or stuck or frozen or bricks or LCD touch screen not responsive. We need to read many user review before download that kind of apps. These bad apps will not get any Verified by Play Protect information at downloaded process. Please note, usually Editor choice is good options to try for safety reasons.

What do we have to do when we get this trouble? First we have to remove temporary files and caches inside this phone by doing soft reset. After our LG K51S can run again, then please try to download one good antivirus like NORTON or AVAST. It will scan all installed applications and give recommendation if there are some high-risk setting. If the problems still happen, then next steps is doing 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 LG K51S. For safety reasons, please do not install any unknown APK files, because it is very easy to make our phone getting trouble.

 

How to Force Shutdown or Force Soft Reset or Reboot or Restart LG K51S ?

LG K51S comes with Mediatek processor with 3 GB RAM, it can work with many applications without any problems, but sometime some of them crash or corrupt that make our phone become hang or LCD touch screen not responding with finger touch. We need to force remove temporary files and caches inside this phone. Please press and hold POWER button until LG K51S shutdown or turn off by itself. If it is not work, then try to press and hold POWER + VOLUME DOWN together until shutdown.

After it 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 LG K51S 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 LG K51S ?

We can use microSD external card to copy or move important files using File Manager applications. If our LG K51S 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.

 

Please note: These options bellow may not work for some devices because of firmware update version or hardware troubles or some other possibilities.

#Option 1, Hard Reset LG K51S with software menu

  1. Turn on the LG K51S
  2. Make sure the battery is not empty
  3. Backup important data at LG K51S because all data and applications will be erase or delete
  4. Go to Menu :  Setting > Backup and Reset > Factory Data Reset
  5. Choose : Reset Device > Delete all
  6. The LG K51S will do the master reset process.

 

hard reset lg k51s

#Option 2, Hard Reset LG K51S Factory Default using Hardware Secret Button Key

In some conditions, we can not do anything at LG K51S touch screen or frozen in some state. So we can not access reset menu like Option #1, do not worry, because we can do hard reset LG K51S with hardware key button:

 

  1. Turn off the LG K51S
  2. Make sure the battery LG K51S already full or more than 50%
  3. Press together and hold the Power Button + Volume Down Button
  4. If the Logo appear, then release the Power Button (do not release the Volume Down Button), then continue to press again the Power Button until Recovery mode / Factory reset menu appear, then we can release all button now.
  5. Choose wipe data/factory reset using Volume Button, and press Power Button to Enter or OK
  6. The LG K51S will continue master reset, wait for several minutes until the phone start like new again.

 

How to Unlock or Fix or Bypass or Solutions for LG K51S forgot password code or security lock screen pattern or pin (lost password)?

We need to understand that security are very important for our device, therefore we have to keep our data secure from unauthorized people when LG K51S away from us or lost or stolen. Because with four beautiful camera 32 megapixel for wide + 5 megapixel for ultrawide + 2 megapixel for macro + 2 megapixel for DOF Bokeh, we will have many private photos videos inside this phone. If our device does not have any screen protections, then anyone can easily access all confidential data in it.

We suggest to activate fingerprint which located at back side of body, because it is easy and fast to use. Beside fingerprint, front camera also can work as face unlock detection. After finish register our fingerprint or face recognizing, we need to choose secondary protections like screen lock pattern or password pin protections for backup, because fingerprint or face unlock can not work after performing soft reset or restart. The problems will be happen when we forgot security answer or fingerprint can not work, what should we do?

Do not worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at LG K51S use registered Google account. We have to force hard reset or master format using hardware button combination key like steps at #option 2 above.

After finish hard reset, this phone will ask for Verify your account with previous Google Account that has been used before performing hard reset. Please note that Google account is very important. This phone already use latest version of Android operating system, therefore LG K51S implement FRP (factory reset protection) to make our phone safe from hard reset when stolen or lost.

 

Is That Any Secret Code for Doing Format LG K51S?

There is no secret hidden code for LG K51S to make it back to factory default. Do the options above to hard reset it.

 

How to Format or Erase Phone Memory at LG K51S ?

There are two phone memory type at LG K51S , one is internal memory and the other one is external memory. If we want to format internal memory phone then we have to do hard reset or reformat the operating system of LG K51S as well. Please use menu setting to do hard reset or reformat using #option 1 above, but make sure to give checkbox mark at Erase Internal SD card / Internal storage. Then it will reformat the factory default operating system and remove or erase any data inside internal memory.

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 LG K51S Stronger, Life Longer and Not Fast to Drain ?

LG K51S (LMK510EMW) use non removable 4000 mAh battery. We can use this phone full one day without need to recharge for standard activity. But some heavy users will not get battery insufficient problems, because they use LG K51S very active several hours continuously for playing games or watch movie. We need to do some adjustment to make LG K51S battery work more longer. Please make LCD screen brightness as low as possible and disable all not use connections like Wifi or GPS or NFC or Bluetooth.