Tips and tricks to fix OPPO A3S or OPPO CPH1803 / CPH1853 problems. This is entry level to mid end smartphone with cheap price and already have full-view display with notch. The screen size is 6.2 inches using 19:9 aspect ratio to make it still easy to hold. OPPO A3S use Qualcomm SDM450 Snapdragon 450 processor with 16 GB internal storage and 2 GB RAM for standard multitasking. Find more review and information about how to solve OPPO A3S troubles at community.


What is Advantage of OPPO A3S (CPH1803 / CPH1853) Specifications?

Network GSM 3G HSDPA or with 4G LTE Dual simcard
LCD 6.2 inches 19:9 aspect ratio
Processor Octa-core 1.8 GHz Cortex-A53
GPU Adreno 506
Bluetooth / GPS / Wifi
Memory Internal 16 GB with 2 GB RAM
External memory 256 GB microSD
Main Camera 13 MP f/2.2 + 2 MP f/2.4, autofocus, LED flash
Front Camera 8 MP for video conference and selfie photography
Operating System Android Oreo 8.1
Battery Li-Ion 4230 mAh



How to Fix or Problem Solving for Recovery OPPO A3S (CPH1803 / CPH1853) hang or not responding or malfunctions or stuck or freezing or bricked ?

This is other options from OPPO for anyone who want to have big screen Android Oreo 8.1 smartphone but have cheaper price. The disadvantages of this phone is the small internal memory which only have 16 GB with 2 GB RAM. Users will not get full 16 GB free storage, because it is use also for operating system and factory default applications. But advantage of OPPO A3S is have dedicated external slot maximum 256 GB for MicroSD, Android Oreo can change default installed location to external memory. Therefore we can install more interesting applications from Google Play Store like Whatsapp, Line Messenger, WeChat, Skype, Instagram, Viber, Facebook, Telegram, Snapchat, Blackberry Messenger (BBM). But we have to read as many users review as possible when we want to install new or not famous apps, because some of them may contain viruses or malware that can make troubles at our OPPO A3S like phone crash or hang or stuck or bricks or LCD touch screen not responding or not responsive. Usually they are not verified by Play Protect information when we want on the process of download.

If we get this problem, we have to try remove temporary files and caches inside this phone, because some troubles can be solve with this steps. If we are suspected infected by virus, then please install one good antivirus like Avast or Norton, then scan all content inside this phone. However, if the problems still happen, then we have to do hard reset to reformat our phone. Please remember, doing hard reset or master format can make our important data removed or wiped from this phone, this is also happen with all Google account which will remove from OPPO A3S. We are not recommended to install APK from unknown resource for safety reasons.


How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A3 (SCPH1803 / CPH1853) ?

This phone only have 2 GB RAM which is not too big for these days. Sometime apps may crash or corrupt or stuck when running that make some hang or LCD touch screen not responsive with our finger hand. We need to do soft reset or reboot to remove temporary files and caches. Please press and hold POWER button until OPPO A3S shutdown or turn off by itself. 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 OPPO A3S 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 OPPO A3S (SCPH1803 / CPH1853)?


We can use microSD external card to copy or move important files using File Manager applications. If our OPPO A3S 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, Hard Reset OPPO A3S (SCPH1803 / CPH1853) with software menu

  1. Turn on the OPPO A3S
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A3S 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 A3S will do the master reset process.


hard reset oppo a3s

#Option 2, Hard Reset OPPO A3S (SCPH1803 / CPH1853) Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A3S 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 A3S
  2. Make sure the battery OPPO A3S 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 A3S will continue master reset, wait for several minutes until OPPO A3S start like new again.


How to Unlock or Fix or Bypass or Solutions for OPPO A3S (SCPH1803 / CPH1853) forgot password code or security lock screen pattern or pin (lost password)?

For make this phone still have cheap price, OPPO A3S does not have fingerprint sensor for security protections. Some users maybe does not aware to activate lock screen, but we recommended to protect our important data and photos videos inside OPPO A3S. Moreover, this phone have good main camera at back side of body 13 mp + 2 mp for bokeh effect and 8 megapixel front camera. We do not want unauthorized people can access our data when OPPO A3S away from us or stolen or lost. Please use some options from menu Setting for security protections like screen lock pattern or password pin protections or face unlock. The problems will start happen when we can not unlock this phone. What should we do?


Do not worry about this trouble, because Android already give solutions when we forgot security screen lock pattern or password pin protections using Google account to unlock it. Please turn on this phone, when it ask for security answer, then please try to give several time wrong answer continuously until OPPO A3S locked or freezing about 30 seconds. At this situations we can find Forgot Password / Pattern button. Press this button, to give our Gmail username and password account that we have already signed-in before. If we still can not access Gmail account, then we have to do hard reset using hardware button combination key above.


Is That Any Secret Code for Doing Format OPPO A3S (SCPH1803 / CPH1853)?

There is no secret hidden code for OPPO A3S to make it back to factory default. Do the options above to hard reset it.


How to Format or Erase Phone Memory at OPPO A3S (SCPH1803 / CPH1853)?

There are two phone memory type at OPPO A3S, 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 A3S 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 A3S (SCPH1803 / CPH1853) Stronger, Life Longer and Not Fast to Drain ?

This phone can work full one day or more, because it have big battery at 4230 mAh battery capacity. Big LCD screen will make this phone use more active for most users, therefore big battery is recommended to use at this phone. The battery is not removable, if we want to replace because battery corrupt or battery damage, then we have to bring this phone to authorized service center to replace with genuine battery.

Altough OPPO A3S have big battery, this capacity still not enough if we use continuously for several hours for playing games or watch movie. We have to do some adjustment like make LCD screen brightness as low as possible. We also need to disable all not use connections like Bluetooth or GPS or Wifi. Please use GPS battery saving mode for some apps which need to know our location.


More FAQ About OPPO A3S (SCPH1803 / CPH1853) : 

  • How to do OPPO A3S Hard Reset Without Password? This is something that most people ask about how to hard reset OPPO A3S if we forgot the password? Actually doing hard reset using hardware button combination key will performing reformat or master reset to OPPO A3S start from Off Positions, so this phone will directly go to recovery options and you will see some menu and please choose to hard reset like steps at #option 2 above. Therefore, using this hardware button combination key format, will bypass any screen lock or password protections at OPPO A3S.
  • How to bypass face unlock security protections at OPPO A3S ? There are some security protection options that can be use at OPPO A3S like Face Unlock. After we capture our face several time, then this phone will ask for backup protections when Face Unlock recognizing can not work properly, the backup protections can be choose such as screen lock pattern or password pin protections. 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 A3S 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 A3S operating system to factory default, after that our OPPO A3S 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 A3S, it always ask password ? Maybe we forget the security protections answer, but this problem does not mean we can not remove anything. Please follow steps at #option 2 above to reformat OPPO A3S 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.
  • How to Fix OPPO A3S Forgot Passcode Or Unlock OPPO A3S 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 A3S 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 A3S Passcode ? OPPO A3S does not have default Passcode.

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