Tips and tricks to fix NOKIA 4.2 problems. The mid end smartphone with 5.71 inches LCD screen and have notch at the top of the screen for front selfie camera location. The main camera at back side of body are dual lens 13 megapixel and 2 megapixel. As entry level mid-end smartphone, the screen is not Full HD, but already use HD plus 720 x 1520 pixels with same 19:9 aspect ratio. The operating system which is ship the first time release in the market is Android Pie version 9.0, Android One family. Therefore all NOKIA 4.2 users can use native Google operating system without any bloatware. Google ever said that they will have native Google assistance button for Android One smartphone, and this button also available at NOKIA 4.2. Find more review and information about how to solve troubles of NOKIA 4.2 at community.


What is Advantage of  NOKIA 4.2 Specifications:

GSM 3G HSDPA single or dual simcard
4G LTE Broadband connections
LCD 5.71 inches
Internal memory 32 GB with 3 GB RAM
Internal memory 16 GB with 2 GB RAM
External memory microSD maximum 400 GB
Main Camera 13 MP f/2.2 + 2 MP with LED flash, PDAF
Front Camera 8 MP for selfie photography
Processor Octa-core 2×2.0 GHz Cortex-A53 & 6×1.45 GHz Cortex A53
GPU Adreno 505
Operating system Android Pie version 9.0 Android one (can upgrade to Android 10.0)
Battery Li-Ion 3000 mAh



How To Upgrade NOKIA 4.2 Official New Android Firmware Update ?

NOKIA 4.2 is release at February 2019 use Android Pie 9.0 operating system with Android One family. It is already declare that all Android One will get 2 years major firmware upgrade. Now at year 2020, NOKIA 4.2 get new official Android 10.0 upgrade version with several improvement. The process of upgrade will use OTA (over the air) by downloading big files, therefore we suggest to use fast wifi connections while performing upgrade. What is New at NOKIA 4.2  Android 10 operating system? There are some improvement and new features at Android 10 such as boast the performance, dark mode, focus mode, smart reply and some other security and privacy improvement.


easy upgrade android 10 on nokia 4.2

Please note, this firmware upgrade maybe not always available at our region or the upgrade also not available for NOKIA 4.2 with custom tweak or rooted. We can try to check whether our NOKIA 4.2 is eligible to get Android 10, by go to menu Setting > System > Advance > System update, and follow steps for update to Android 10.0.

These are our recommendations process for upgrade NOKIA 4.2 to Android 10:

  • Backup all important data to safety place or cloud storage or email, because although the backup process are save, but we just prepare for the worse case if the process not work properly or NOKIA 4.2 stuck in the middle of upgrade process.
  • Make sure our NOKIA 4.2 battery is full before performing upgrade or do the upgrade while charging.
  • Because this process is use OTA (over the air), then NOKIA 4.2 will download firmware file from Nokia server, therefore we suggest to connect our phone using Wifi.


How to Fix or Problem Solving for Recovery NOKIA 4.2 hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone use Qualcomm SDM439 Snapdragon 439 processor which can run with maximum 2.0 Ghz clock speed. Can we play HD games with NOKIA 4.2. Yes we can because it is already have dedicated GPU (graphic processor unit) Adreno 505. There are two internal memory and RAM available to choose. The cheap price have 16 GB internal memory with 2 GB RAM and if we have more budget to buy, then the more expensive NOKIA 4.2 use 32 GB with 3 GB RAM. Of course use more internal memory and more RAM is better. Whatever we have, this phone still have enough capacity to install more applications from Google Play Store like Whatsapp, Facebook, Instagram, Telegram, Line Messenger, WeChat, Skype, Viber and some other more.


We have to be careful for new or not famous applications inside Google Play Store, because they are some bad apps which contain viruses or malware. If we install that apps, then our NOKIA 4.2 can become hang or stuck or bricks or bootloop or frozen or LCD touch screen not responsive or LCD screen not responding with our finger touch. Google will not give Verified by Play Protect icon for these kind of applications.

What should we do if this problem happen? First we have to try do soft reset or reboot or restart to remove temporary files or caches that can make some trouble at this phone. If our NOKIA 4.2 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 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 NOKIA 4.2. 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 NOKIA 4.2 ?

NOKIA 4.2 installed apps may crash or corrupt after run several period, it can make some troubles and work not normal like hang or LCD touch screen not responding with finger touch. We have to remove temporary files and caches to fix this troubles. Please press and hold POWER button until NOKIA 4.2 shutdown or turn off by itself. 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.


How to backup data or Contact at NOKIA 4.2 ?

We can use microSD external card to copy or move important files using File Manager applications. If our NOKIA 4.2 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.


#Option 1, How to Hard Reset NOKIA 4.2 (Android) with software menu:


  1. Turn on this phone
  2. Please Make sure NOKIA 4.2 (Android) battery already charge properly or minimum have 50% capacity
  3. Go to menu: Setting > Backup & Reset > Factory data reset > Reset device
  4. Choose Erase Everything
  5. NOKIA 4.2 (Android) will do the process to Master Reset to Factory Default


hard reset nokia 4 2 (android one)

#Option 2, How to Hard Reset NOKIA 4.2 with Hardware key button:

  1. Turn off NOKIA 4.2
  2. We have to connect power charger to our phone right now
  3. Press and hold together : Power Button + Volume Up (about 10-20 seconds or more and the LCD while screen show Nokia Logo and command) 
  4. Release All button once we see Android Recovery with several menus at our phone
  5. If we see the menu at LCD screen, choose Wipe Data/Factory Reset with Volume Button to select and use Power Button to ok or enter.
  6. The NOKIA 4.2 will doing the process of restoring to factory default. And if we go back to Recovery menu, choose Reboot to start this phone from beginning.


How to Unlock or Fix or Bypass or Solutions for NOKIA 4.2 forgot password code or security lock screen pattern or pin (lost password)?

We strongly suggest to always activate security protections at NOKIA 4.2, because after use several months, we will have many private pictures or videos which taken with good dual camera which have AI 13 megapixel + 5 megapixel or front camera 8 megapixel. Some pictures maybe do not necessary to see by some other unauthorized users, therefore we have to protect to secure all data when NOKIA 4.2 away from us or lost or stolen.

Fingerprint is available at NOKIA 4.2, we need to register our fingerprint several time to make it recognize with our finger. We also can use face unlock recognizing. NOKIA 4.2 need to have secondary protections, then we can use screen lock pattern or password pin protections. The problems will start happen when we can not unlock this phone with fingerprint or screen lock pattern or password can not work. What should we do?

Do not worry about security protections, because Android already give solutions when we forgot security screen lock pattern or password pin protections using Google account to unlock it. This NOKIA 4.2 already use latest Android version which already implement FRP (Factory Reset Protection) to secure our phone when stolen or lost. Anyone who do not know previous Google account, can not use this phone although we do hard reset or reformat the operating system. Therefore we have to make sure keep our Gmail / Google account secure. To recovery forgotten protections or passcode, please do hard reset using hardware button combination key. After reformat finish, Verify your account with previous Google Account.


Is That Any Secret Code for Doing Format NOKIA 4.2 ?

There is no secret hidden code for NOKIA 4.2 to make it back to factory default. Do the options above to hard reset it.


How to Format or Erase Phone Memory at NOKIA 4.2 ?

There are two phone memory type at NOKIA 4.2, 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 NOKIA 4.2 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 NOKIA 4.2 (Android) Stronger, Life Longer and Not Fast to Drain ?

NOKIA 4.2 is mid end smartphone with 3000 mAh. This battery still enough to make it work full one day without need to recharge. Moreover, NOKIA 4.2 already have new technology to make less power for not use applications. However, the battery will not enough for some heavy users like game player or for watch movie several hours continuously. But NOKIA 4.2 battery is not removable, therefore we can not replace with bigger capacity battery. We have to do some adjustment like make LCD screen brightness as low as possible. Please disable all not use connections like GPS or Wifi or Bluetooth or NFC. Please use GPS battery saving mode if some apps need to know our locations.


  • How to Hard Reset or Master Format NOKIA 4.2 without Password ?

    We have to understand that many private data and confidential files may store at our NOKIA 4.2, therefore it is very good options to give password protections. But the problems might happen when we want to do hard reset or master format, because NOKIA 4.2 ask password or pattern protections answer before hard reset. If this problems happen, then please do hard reset or master format using hardware button combination key like steps at #Option 2 above, because that steps will do hard reset or master format NOKIA 4.2 without ask password answer because the process start from OFF positions.

  • How to Remove or Wipe Google account from NOKIA 4.2 ?

    NOKIA 4.2 using Android as factory default operating system. We need to use Google account to make all features work properly. However, we need to remove all data including Google account when we want to sell or give this phone to someone else. Please go to menu Setting > Account > choose Google account / Gmail account then choose Remove Account button. The second options to remove Google account from NOKIA 4.2 is doing hard reset whether using menu Setting or hardware button combination key.

  • How to Hard Reset or Reformat NOKIA 4.2 Without PC (Computer) ?

    When some troubles start happen at our NOKIA 4.2, then it will not work normally. We suggest to do hard reset to reformat NOKIA 4.2 operating system to factory default. We can easily performing hard reset using hardware button combination key like steps at #Option 2 above if our phone can not boot properly. That steps will process hard reset NOKIA 4.2 without computer or PC.

  • Why NOKIA 4.2 Can Not Work Properly After Upgrade with New version of Android Firmware Operating System ?

    Before we do the OS upgrade, NOKIA 4.2 has been installed with several applications. These apps may not always compatible with new Android operating system, therefore some users get troubles after upgrade to latest official Android operating system. We suggest to backup all data, then do hard reset / reformat to reset all setting and renew installed applications with the latest correct compatible version.