This phone use standard screen size IPS screen type with 5.2″ size HD resolution. It has dual simcard slot which also can standby together like other Oppo smartphone. The first operating system installed at OPPO A57 is Android Marshmallow. If we are really like OPPO user interface then OPPO A57 already use Color OS version 3.0. The community of will give more information about how to fix OPPO A57 problems.


What is Advantage of OPPO A57 Specifications?

  • Network GSM 3G HSDPA or with 4G LTE
  • LCD 5.2 inches
  • Octa-core 1.4 GHz Cortex-A53
  • Bluetooth / GPS / Wifi / Fingerprint
  • Memory Internal 32 GB with 3 GB RAM
  • External memory 256 GB microSD relpace simcard 2
  • Camera 13 MP, f/2.2, phase detection autofocus, LED flash
  • Front Camera 16 MP, f/2.0 for video conference and selfie photography
  • Operating System Android Marshmallow version 6
  • Battery Li-Ion 2900 mAh


Solutions To Fix Camera Issues on OPPO A57

Some users get camera problems when running camera applications. Follow this page to fix OPPO A57 front and rear camera troubles.



How to Fix or Problem Solving for Recovery OPPO A57 hang or not responding or malfunctions or stuck or freezing or bricked ?

The most important features at most smartphone is about camera result. The camera function at OPPO A57 is very good, it can give bright pictures for main back side camera or front camera for selfie photography. If we are really like to take many pictures, we suggest to use external microSD memory card. But we have to know that OPPO A57 share GSM/CDMA simcard slot 2 with external memory. Therefore if we want to use external memory, then we only can use one GSM/CDMA simcard at simcard slot 1. If we do not want to use external memory, all pictures will be save at 32 Gb internal memory.

Internal memory is very important for applications which are installed from Google Play Store like Facebook, Whatsapp, Instagram, Skype, Line Messenger, Snapchat, WeChat, Viber, Blackberry Messenger (BBM) and many more. They are all will use internal memory for main data saving. Please note, we need to read as many review as possible because some apps from Google Play Store may contain viruses or malware that can make our OPPO A57 become trouble like slowly or hang or stuck or bricks or frozen or boot logo loop or LCD touch screen not responsive. If this problems happen, then we have to force soft reset or reboot or shutdown to clean temporary files and caches. When our OPPO A57 can start and booting again, please install one good antivirus like NORTON or AVAST.

The installed antivirus will scan all installed applications and all content inside our OPPO A57, they also will give information about what to do to make setting options more secure. If the problems still happen, then we have to 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 also remove all Google account from OPPO A57.


Easy Solutions To Make OPPO A57 Run More Faster & Fix Lagging Issues


How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A57 ?


When some bad applications has been installed inside our OPPO A57, then this phone will act not normal such as LCD touch screen not responsive with our finger touch. What should we do? The first steps to do is doing soft reset or reboot this phone to remove temporary files and caches. Please press and hold POWER button until OPPO A57 shutdown or turn off by itself. This process is safe because it will not remove any important data, therefore we can do this process anytime we want. If our OPPO A57 still can boot normally, but we want to clear temporary files and caches then we can press and hold POWER button until pop-up menu appear, then choose Shutdown / Power off / Reboot menu.


How to backup data or Contact at OPPO A57?

We can use microSD external card to copy or move important files using File Manager applications. If our OPPO A57 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, Videos On OPPO A57


#Option 1, Hard Reset OPPO A57 with software menu

  1. Turn on the OPPO A57
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A57 because all data and applications will be erase or delete
  4. Go to Menu :  Setting 
  5. Choose Tab : General
  6. Press Backup & Reset > Restore factory setting
  7. Better you not check anything at the option if you do not want to erase data at data partition at internal memory
  8. Choose Reset phone 
  9. The OPPO A57 will do the master reset process.


hard reset oppo a57

#Option 2, Hard Reset OPPO A57 Factory Default using Hardware Secret Button Key


If we can not go to menu, or OPPO A57 can not turn on or hang or stuck or frozen so we can not access the menu setting or nothing happen while touch the screen, then try to factory reset with secret button and hardware key

  1. Turn off the OPPO A57
  2. Make sure the battery OPPO A57 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 button, after that we will enter some menu
  5. Choose wipe data / factory reset using Volume Button, and press Power Button to Enter or OK
  6. The OPPO A57 will continue master reset, wait for several minutes until OPPO A57 start like new again.


How to Restore and Reinstall Clean Android Operating system / firmware at OPPO A57 (Reformat) ?

When the first time OPPO A57 introduce and release in the market, Android Marshmallow operating system has been installed inside this phone. Therefore we can directly use OPPO A57 when we open from the box. But some bad or not compatible applications can make OPPO A57 operating system damage or corrupt that can make this phone work strange. What should we do? At this time we have to reinstall or reformat with factory default operating system. First we have to know, that clean factory default Android operating system already saved safely inside OPPO A57 ROM or internal memory. Therefore we do not need to copy or connect with other device. Just follow simple steps to hard reset above, then clean factory default Android operating system will be reinstall automatically at OPPO A57.


How to Unlock or Fix or Bypass or Solutions for OPPO A57 forgot password code or security lock screen pattern or pin (lost password)?

OPPO A57 have fingerprint which is fast to open security protections. With good camera result, some photos may confidential. Therefore we have to give security protections. There are some factory default security protection like screen lock pattern or password pin protection. They are all already installed inside factory default operating system. Security protections also important to secure our secret data or applications when our phone away from us or stolen or lost. The problems will be happen when we forgot security protections answer, what should we do?

Don’t worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at OPPO A11 use registered Google account. Previous Google account is very important because it can use to make this phone work after force from Hard Reset or Master Format to Factory Default.

New OPPO smartphone already use latest Android version already implement FRP (Factory Reset Protection). FRP is important to secure our phone when it is stolen or lost. Android will ask for previous pin. At some Android version, we can bypass using previous installed Google account username and password after finish performing hard reset or master format. But at some other version update, we still have to type our screen lock pin or password protections. We can bypass using software at personal computer, but these steps are complicated for many users. Therefore we suggest to ask OPPO service center for bypass protections. We also recommended to activate or create OPPO ACCOUNT atOPPO A57, because it can help us to bypass forgotten security protections.


How to Improve Performance OPPO A57 to make run more faster?

Base by specifications of OPPO A57, this phone can work almost all applications without problems because OPPO A57 use Qualcomm MSM8940 Snapdragon 435 which have Octa-core 1.4 GHz Cortex-A53 and also dedicated GPU (graphic processor unit) Adreno 505 for play 3D HD games without problems and no lag. But why some users get some slowly trouble? Usually because applications trouble. Please note, there are some applications which installed from Google Play Store will keep run in the background to wait data update, like social media or chatting or games. If many of applications run together, then our OPPO A57 RAM and processor resources will become insufficient and make this phone run slowly. We have to uninstall some not use applications. If we want to make our OPPO A57 run faster again like new, then please consider to do hard reset or master format.


How to Upgrade OPPO A57 to Android Nougat Update?

OPPO A57 by default use Android Marshmallow and this OS run without problems, all functions working good as wel. We still not get any information about when OPPO A57 get official Android Nougat OS. However, we are recommended to use official firmware because all features are working good without problems. We will get some firmware upgrade to fix several bugs and improve features. Please do not install with custom ROM for rooted OPPO A57 because some wrong steps can make our phone become damage or corrupt.


Is That Any Secret Code for Doing Format OPPO A57 ?

There is no secret hidden code for OPPO A57 to make it back to factory default. Do the options above to hard reset it.


How to Format or Erase Phone Memory at OPPO A57 ?

There are two phone memory type at OPPO A57, 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 OPPO A57 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 OPPO A57 Stronger, Life Longer and Not Fast to Drain ?

With 2900 mAh battery, some users can run OPPO A57 for one day full without recharge. But as we know some users also use OPPO A57 too much for watching several full movie streaming or offline video or playing games for several hours. The battery of OPPO A57 will not enough and fast to empty. We have to do some adjustment such as turn lowest LCD screen brightness as possible, especially when we are not in the bright sunlight. Next adjustment is turn off all not use connections like GPS or Bluetooth or Wifi. If some installed applications ask for GPS functions, then we can try to set GPS Battery Saving Mode from menu Setting.

Please note, OPPO A57 battery have life time, if the age is more then 2 years, then OPPO A57 battery performance will be drop. Please replace with original battery at Oppo authorized service center, because the battery of OPPO A57 is not removable.


More FAQ About OPPO A57 (CPH1701) : 

  • How to do OPPO A57 Hard Reset Without Password? We always recommended to activate security protections for our OPPO A57, because we will have many important files inside this phone which not necessary to access by unauthorized people, but the problems will start happen when some trouble happen and we need to do hard reset or master format. The OPPO A57 will keep ask password, how to solve this problems? Please follow steps to hard reset using hardware button combination key like steps at #option 2 above, because it will not ask any security password because the process start from OFF position. Therefore after pressing the combination key, then it will go directly to recovery options menu.  It will bypass any screen lock or password protections at OPPO A57. But do not forget your previous Google account, because this phone already use for FRP (Factroy Reset Protections). Therefore you have to sign in with previous Google account to make sure this phone is belong to you.
  • How to bypass face unlock security protections at OPPO A57 ? Face Unlock is other alternative to protect OPPO A57. We have to register our face several time to make it recognize to unlock. But the secondary protections will be ask for backup, we can choose screen lock pattern or password pin protection. This backup protection can be use when OPPO A57 Face Unlock can not work or need to bypass. If we Face Unlock can not open and we also forget about other security protections, then please use Google account to bypass by giving several time wrong answer continuously until freezing 30 seconds, then press Forgot Password / Pattern button, then we can type our Gmail username and password. If all steps still can not work, then please do hard reset using hardware button combination key like steps at #option 2 above.
  • How to wipe OPPO A57 Data and Password ? First wipe data mean that we will erase all data, we can do this process by doing hard reset to reformat OPPO A57 operating system to factory default, after that our OPPO A57 will refresh like new again. We have to login with Google account to make it work with Google Play Store. Please note, doing reformat will also wipe all security protections or password or also Google account or any other account.
  • When I want to wipe / erase / remove all data from OPPO A57, it always ask password ? When we want to give this phone to other people or sell OPPO A57, we want to erase all or clean all data, when we follow Setting menu to wipe data, it will ask password protections. Please follow steps at #option 2 above to reformat OPPO A57 operating system to factory default using hardware button combination key. It will not ask any security protections answer because first step is start from OFF state. After finish performing hard reset using hardware button combination key, we have to Verify your account with previous Google Account for security protections.
  • How to Fix OPPO A57 Forgot Passcode Or Unlock OPPO A57 Passcode ? The Passcode is same meaning with Password or PIN that we have chosen when activate security protections. This passcode will protect all important data from unauthorized people. If we can not unlock OPPO A57 passcode then we have to bypass using Google account like information above or hard reset if we can not access Google account.
  • What is Default OPPO A57 Passcode ? OPPO A57 does not have default Passcode.


Latest Discussions & Share Information:

[Q] I was opening my phone using fingerprint, suddenly it failed now I have a second option of opening it using pattern Which I forgot.I have tried erasing all content, but it doesn't work help me
[A] Hi, the only steps to do is hard reset using hardware button combination key like steps at #option 2 above. It will reformat your OPPO A57 operating system to factory default. After finish reformat, your OPPO A57 will ask you to bypass FRP (factory reset protection) by asking with previous Google username and password that has been installed before. You have to remember your previous Gmail username and password for make it work again.

[Q] hi there, i need your help i already reset my oppo a57 coz i forgot my drawing pattern to unlock but after reset my phone was not working coz just only appeared WELCOME for sim setting, pls help me if do i need to do coz it said no connection for sim setting thanks
[A] Hi, if you forgot security protection on Oppo A57, then you have to do hard reset using hardware button combination key like steps at #option 2 above. After finish all hard reset process, usually this phone will work like new again, except you have to login or verified with previous Google account for bypass FRP, to make sure this phone is really belong to you. We suggest to try performing hard reset one more time using hardware button again. If the problems still happen, please consult with Oppo authorized service center.

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