Common Problems in Oppo A12 and Solutions – Wi-Fi, Bluetooth, Camera, SIM, and More

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• Make sure the basic radiation around you is not too high. This generally happens when the temperature around you is higher because of any reason
• Check and make sure the actual fault is not present just because the Bluetooth visibility is hidden from the other gadgets around
• Your device might be having something actually wrong with the default Bluetooth drivers or the antenna
• Make sure the reason to this problem is not associated with Bluetooth history. The same might be wide and clearing it can help you to fix the problem
• The enhanced level of moisture in your device can be a reason you have to face this problem. Check the same
• Don’t customize the Bluetooth settings on your Oppo A12 as this can be a reason you are facing any problem
• Clear the cache data of the device and check if this helps you to fix the problem
• Simply make sure the actual problem is not caused just because the device is having an OS bug in the same
• Check and make sure the problem is not caused just because the data you are exchanging is corrupt
• Keep the device out from your pocket or from a big in which it is inserted. Sometimes the Bluetooth problems are because of the very same reason
• A basic restart can help you to deal with this problem. Try the same
• Simply make sure the problem is not caused just because the devices have not been paired correctly
• Check and make sure the reason to this problem is nothing but running the device in the safe mode
• There are chances that the actual fault is there due to imposing communication restrictions on your device

• Check if the bad weather is the reason to this problem. Wi-Fi connections often operate slowly during a rainy day or during unpleasant weather
• Make sure the actual problem is not there just because the device Wi-Fi antenna is having something wrong with the same
• You simply need to make it sure that the actual fault is not caused just because your Oppo A12 is having something wrong default Wi-Fi driver
• Do check and make sure the problem is not caused just because your phone is suffering from a software problem
• Check if the network password you enter in the phone is not correct and the problem is there because of the very same reason
• The network bandwidth limit might have crossed and the problem is there because of the very same reason
• You simply need to make it sure that the actual problem is not caused just because your device is having safe mode turned ON
• Restore the default internet settings or the Local Area Network settings if customized. This can solve the problem
• Do check and make it sure the problem is not caused just because your internet connection is weak
• The reason to this problem is nothing but crossing the entire bandwidth limit on your connection
• Simply make sure the problem is not caused just because your Wi-Fi router is not configured properly
• Simply make sure the IP mismatch of your device on the network is not the reason to this problem
• There are chances that the actual problem is there just because your device is having something wrong with the browser
• This problem can be solved by forgetting the Wi-Fi connection and then adding the same in the device

• Your data pack might have expired. Check the same and make sure it is not the reason to this problem
• This might be happening due to crossing your daily bandwidth limit usage. Check if this is the case
• Make sure the actual problem is not with the phone SIM card. Refer to the solutions listed under the headline “SIM/Network Problems” in this post
• Make sure if the internet services are facing an obstacle on your phone due to any of the possible reason
• This can happen in some cases when the phone is updating the installed apps or is downloading the OS updates. Check if this is the reason
• Simply make sure the actual fault is not caused just because the storage space is not available in the phone. This can happen in certain cases
• A problem with the service provider or with the network can be a reason you have to face this fault in your phone
• Make sure you are not confusing this problem with the slow internet speed
• Check if the problem is caused by a poor signal strength on your Oppo A12
• Reset the network setting to the recommended mode in case you customize them. This can solve the problem for sure
• Simply restart the phone and check if this helps you to fix the issue
• Turning the roaming services OFF can be a reason to this problem on your device
• Check if the network mode selection on the phone is wrong. You might have selected a 2G network in the same when you are using a 4G SIM
• Clear the cache partition of the device and check if this solves the problem on your device

• Check if the internet connectivity on the device is poor and the same is causing this problem
• Make sure the actual problem is not in the phone GPS sensor. Check and get it repaired if you find the same
• The problem could be there in the GPS antenna of the device. Thus, check the same and take the action required
• Toggle the phone GPS and check if this works
• Sometimes running a number of apps in the phone that access the phone GPS cause this problem. Close a few and check if the problem is solved
• Check if the phone location services are ON. This is required for the proper working and functionality of phone GPS
• Enabling power-saving mode on your Oppo A12 can be the reason to this problem
• Make sure the GPS problem in the device is not related to the failure of any hardware component
• Check if any important OS update is spending and install the same. This can solve the GPS-related common problems in Oppo A12
• Select high accuracy mode in the location services and restart your device. This may solve the problem
• Check if this problem can be solved by updating the Google maps
• Recalibrate the GPS on the device using the compass app and check if the problem is eliminated
• The phone GPS might be disabled or turned OFF manually. Check and turn it ON if so
• Refreshing the GPS data on your device can solve this problem. Check if this works
• If nothing work, perform a factory restart by saving the phone data first and check if the problem is gone

• Check if this is happening just because you are charging your device from a third-party charger. The same might be having a higher output than what the battery needs as input
• This problem could be there just because the phone software is suffering from a technical glitch. Check the same
• One of the reasons to the screen-related common problems in Oppo A12 is glass guard installed on the screen. Check if it needs replacement or is not installed properly
• The reason to this problem is nothing but a fault that is associated with the default screen driver software
• Check and make sure if a recently installed or a blocked app is causing this problem in your device
• Make sure the actual problem is no there just because the device screen has not been cleaned for a long time
• You can face this problem just because your device is having some unused data stored in its storage space
• Make sure the micro SD card is inserted in your device is not fully loaded with data
• Check if this problem is there just because your hands are covered with mittens
• Sometimes the users have to face this problem just because of no storage space available in the phone default memory
• Check if the problem is there just because the screen sharing option is turned ON
• The device screen might be physically damaged and the same can be a leading reason to this issue
• The screen sensors on your device might have stopped working. Check
• A forced restart to your device can probably fix this problem. Try the same

• Check if the earpiece you are using is physically damaged. Of course, it can be a reason to the problem
• Do check if the earpiece is not connected or paired accurately to the device. This can cause robotic sound in many cases
• One of the reasons you have to face this problem is nothing but not focusing on the quality while purchasing a third-party product
• Check if this fault is caused in your earpiece just because of signal attenuation that can take place due to a lot of reason
• Sometimes it’s nothing but a fault that is associated with the default sound drivers in the phone which cause the robotic sound
• Make sure to keep the noise cancellation feature ON. This can help to avoid the problem
• Check and make sure the actual fault is not there just because your Oppo A12 is running in the safe mode
• Do check and make sure the problem is not there just because the earpiece is not compatible with Oppo A12
• The reason to this problem is nothing but a fault that is associated with the earpiece connector on your device. Check the same
• Make sure the problem you are facing is not there just because the phone sounds are disabled
• Check if the sound card on your phone is having something wrong with the same. The same can be a reason you are facing the issue
• Make sure the actual fault is not caused just because the signal strength is low during a voice call you are attending through the earpiece

• Enable the image stabilization feature on your device and use it whenever the same is required
• The reason you are facing this problem is nothing but an OS fault in your phone. In some cases, it wouldn’t even let you run the camera app
• This problem might be due to not focusing on the object properly when you are capturing the images from a very close distance
• Check if this problem is there due to a fault related to the app you are using. There are various third-party apps present on the Play Store and not all of them are compatible with Oppo A12
• You might be facing this problem just because of using the zoom feature. It can affect the quality largely
• There are chances that the actual fault is there just because the visibility around you is low. In such a case, you can fix the problem by selecting the relevant shooting mode
• Check and make sure the problem is not caused just because your phone is having something wrong with the camera lens
• Make sure the reason to this problem is nothing but selecting the burst mode on your gadget
• You simply need to make it sure that the problem is not caused just because the HDR mode is turned OFF
• Check if the actual problem is there just because of low network signal during a video call
• Remove the pre-installed glass guard from your device screen
• This problem could be there just because your phone is having a problem in the hardware. Get it checked

• There might be a phone virus that has slow down the overall performance of your gadget. Get it out with the help of an antivirus software
• You simply need to make it sure that the fault is not caused just because your smartphone is having something wrong with the installed apps. Update them to fix this problem
• The slow performance can be caused by various common problems in Oppo A12 which are associated with the software domain of your gadget
• Check if the number of installed apps in your device and more than 50. The same can have a negative impact on the overall performance
• The reason you are facing this problem is nothing but a fault which is associated with the phone RAM
• Simply make it sure that the problem is not there just because your smartphone is having something wrong with the hardware components inside
• You might be facing this problem due to customizing your phone settings. Check the same
• Sometimes it’s nothing but connecting your phone to a nearby gadget that slows down its performance
• Check if it’s nothing but the general multitasking which is causing this issue
• Make sure you are not using any pirated or a low-quality accessory with your gadget which slows down its overall performance
• Sometimes it’s nothing but a fault that is associated with the phone bloatware that causes the slow performance
• Your phone browser(s) might be having a lot of tabs opened in it. The same might be causing this problem

• This happens often when you run your phone in the power-saving or in the safe mode
• Check if it’s nothing but overcharging your gadget which is causing this problem
• Simply make sure the actual fault is not there in your device just because its battery is not in a healthy condition
• You are facing this problem just because your Oppo A12 is loaded with a lot of apps
• Playing games on your device all the time is another leading reason why you are facing this problem.
• Check if the actual problem is there just because you use a power bank of different specifications than on the battery
• Sometimes it’s nothing but any connected accessory with the device which causes this problem
• Make sure all the apps in your device are fully updated to the latest versions
• Many users have to face this problem just because of a phone virus. Scan your phone and take the action required
• There are chances that overheating is caused ion your device just because of any OS bug in the same. Check and update it
• Overheating of the core hardware is often caused when you customize the power settings on your device
• The device might have lost its ability to release the excess heat
• Downloading the data from a specific domain in your device can be a reason you are facing this problem

• Check if this is happening just because your device is running in the power-saving mode. This often disables the installed apps in your device
• Simply make sure the actual problem is not caused just because the apps installed in your device are not compatible with the same
• This problem might be there just because your phone apps are outdated. Update them and check if this helps you to deal with the problem
• Make sure your device app manager is not having something wrong with the same
• Sometimes this problem is there just because the apps installed in the device don’t have permissions to access the phone data. Check if this is the reason to the problem
• Make sure the actual problem is not caused just because your Oppo A12 is suffering from a software problem
• You simply need to make it sure that none of the features of your device is manually turned OFF
• There are chances that the problem you are facing is because of no other reason than customizing the app’s settings
• Check if the apps are installed from the other sources and not from the Play Store. This is one of the major reasons to the problems you are experiencing
• There are chances that your device storage space is completely filled. Check if this is causing the concerned problems
• Delete the app which is causing the problem. Install it again from the Play Store. This can solve the problem
• There might be a virus in your device which is causing the trouble. Check the same

• The slow charging of your device might be due to a power source that is weak. Check the same
• Make sure the actual problem is not there just because the charger you are using is faulty
• There are chances that the phone charging port is having something wrong with the same
• The slow charging-related common problems in Oppo A12 are experienced when the battery is suffering from a technical glitch
• Do check and make sure the data in your Oppo A12 is not getting synchronized with apps. This can cause the problem
• There are chances that the actual fault is present just because of outdated apps in the phone
• Make sure the problem you are facing is not there just because the phone is having a lot of apps installed in the same
• Simply check and make sure the actual fault is not there just because you download data in the device while charging it
• Gaming is one of the major factors that can be blamed for this problem
• Do check and make it sure the problem is not there just because the device is having a lot of blocked apps in the same
• Clear the cache data of your device and this will fix the problem for sure
• Perform a software reset and the problem will probably be gone. Try the same

• This usually happens when the phone Wi-Fi and Bluetooth are turned ON without any need. Check and turn them OFF
• Make sure the installed apps are not allowed to access the phone features which they actually don’t need. This often affects the battery backup
• The reason you are facing this problem is nothing but installing toms third-party apps in your device
• Keep the phone GPS OFF when there is no need of the same
• The poor battery backup might be due to widely engaging your device in gaming and data downloading
• Keep this thing in your mind that the level of screen brightness you set can largely have an impact on the battery backup
• There are chances that it’s actually your Oppo A12 battery which is having a trouble with the same
• The reason to this problem is nothing but the presence of a virus in the default storage space
• You simply need to make it sure this problem is not caused by apps which keep sending unwanted notifications
• Check if the camera flashlight was mistakenly turned ON for a long time
• You can fix this problem simply by cleaning the temporary files from your device
• The reason you are facing this problem is a software bug in the device. Check and update the same
• The phone battery backup can be improved simply by erasing the unnecessary data and apps installed in it

• If you recently purchased the SIM card, make sure the services have been activated on the same
• Imposing any kind of restrictions on the SIM card can be a reason to this problem
• The reason you are facing this problem is nothing but incorrectly inserting the SIM in the device
• Make sure the SIM card slot in the phone is not having any problem associated with the same
• The reason you are facing this problem is nothing but a physically damaged SIM card. Check the SIM tray as well if the same is causing any problem
• There are chances that the phone network signal antenna is not performing it actual task
• Make sure the variant of the Oppo A12 purchased by you is compatible to operate in your region
• Sometimes this problem is experienced when the users mistakenly turn OFF the SIM card in the settings
• Another reason to this problem is turning ON the Airplane mode and forgetting to disable it
• Performing a basic reboot to your device can solve this problem. Try the same

• First of all, simply clean your hands. Dust or debris on the fingers can be a reason to the problem. Check and take action required
• Gently clean the fingerprint scanner on the phone with a soft cloth and check if this solves the problem
• This problem can sometimes declare its presence due to completely filling the storage space of the phone
• The fingerprint scanner might not be working due to a bug in the Operating System. Check and take the required action.
• Simply delete the saved fingerprint from your Oppo A12 and add it again. This can solve the problem
• One of the reasons to the fingerprint-related common problems in Oppo A12 is nothing but putting pressure on the fingerprint scanner very softly. Put a bit more pressure on the same with your finger and check if this works
• Always make sure to add more than one fingerprint
• Your fingers might be wet and the same can be a reason to this problem
• Always give priority to the phone updates. Installing them make sure the problem wouldn’t declare its presence
• Check if there is a minor injury on your finger which might be acting as a barrier for the scanner when it try to read the information from the same
• Performing a factory restart can solve this problem. If this doesn’t work, the reason to this problem might be a hardware fault in the phone.
• Sometimes this problem could be there due to allowing multiple apps installed in the phone to access the fingerprint scanner on the phone. Check and take the action required

• Check if the phone battery is charged. This could be due to the consumption of entire juice from the same
• An issue with the third-party app can cause this problem. Thus, check all the apps before you install them in the phone and make sure they are compatible with the same
• Make sure to press the power button a bit harder and check if this helps
• Sometimes this problem would be due to a fault in the power button. Check and take the action required
• An unknown software glitch in the device can be a reason to this problem. Check and take the action required
• There are chances that the phone is getting turned but it’s the screen which is not. Check and make sure this is not the actual issue in your case
• This might be happening because you restarted or turned OFF your device when it was updating
• Know the exact number of seconds for which you need to press the power button. Sometimes this problem is there just because you are pressing the same for a very short span of time
• Liquid damage to your Oppo A12 can be a reason to this problem. Check and take the action required
• Hardware damage in your phone can be the reason to this problem. Check and get it repaired
• Overheating can sometimes turn off the device automatically and you cannot turn it ON unless the inner temperature comes down the normal range
• Check if the phone can be turned ON in the safe mode. Press the power button with the volume up/down button for the same. If this doesn’t work, try opening it in the recovery mode

• Check if this is a problem just because the phone battery is faulty
• Make sure the phone charger is in proper working condition
• A loose connection between the phone and the charging cable can be a reason to this problem. Thus, make sure to connect them properly
• A bad app or the one installed from a third-party source can be the reason to this problem
• Don’t use a third-party charger as this can be a reason to this problem
• Check if dust or debris is there in the charging port and clean it. The same can be a reason you have to face this problem in your device
• In some cases, the phone gets charged but the charging percentage icon which doesn’t give the correct information. This can happen due to a software bug. Check and install the latest updates if the same is pending
• Sometimes the charging-related common problems in Oppo A12 are experienced when the charging socket/power source you are using to charge your widget is faulty
• Check if the actual fault is with the charging cable. Check and replace the same if required
• This problem could be due to the detection of moisture in your Oppo A12. Check its level and take the required action
• Remove the last application you installed and check if this helps you to deal with the problem
• An issue with the phone motherboard can be the reason you have to face this problem
• The pins in the phone socket might be damaged and the same is causing this problem. Check the same
• Drain the phone battery completely and charge it again. Check if the problems is solved
• Performing a forced restart to the phone can fix this issue. Simply try the same

• Check the default camera driver software in the phone. Check if installing the new updates for the OS fixes this problem
• Make sure you aren’t using a third-party camera application which is not compatible with your Oppo A12
• Disable the safe mode if your phone is running in the same
• This problem could be there just because the phone has something wrong with any of the hardware components inside
• Close the camera application if it is running in the background and open it again after 30 seconds. Check if this solves the problem
• Delete the cache of the camera application and check if this helps you to deal with the problem
• Do check and make sure the actual problem is not caused just because the camera lens is faulty or damage
• There might be no storage space available in the phone or in the memory selected for storing the camera files and the same can cause this problem. Most of the times the camera-related common problems in Oppo A12 are because of no other reason than this

• Check if the concerned app is outdated. Updating the same from the Play Store can fix this problem.
• Do check if the Google Play Service on your device is having something wrong with the same because it can affect the working of installed applications
• The low storage space on your device can be a reason for this problem. check and do the needful in this regard
• There are chances that the actual problem is with your account created on the app. Check
• Make sure there are no recent changes in user’s policies of the concerned app
• One of the reasons for the app login-related common problems in Oppo A12 is not cleaning the cache data of the concerned app. Try it and check if this solves the problem
• You might be running the app in custom mode. Check this as it’s a common reason for this problem
• A weak internet connection can also be the reason for this problem. Check it and do the needful
• Check if there is a security concern with the app which is responsible for this problem

• Check if the problem you are facing is just there because you haven’t inserted the card properly in the phone
• Loading the microSD card with inappropriate and corrupt data or the one which is not supported by the phone can be another reason for this problem
• Make sure the card you are using is actually in working condition
• Do check if this problem can be solved simply by ejecting and inserting the card again in the phone
• One of the reasons for the micro-SD card-related common problems in Oppo A12 is the presence of a virus in the data stored
• Open settings and check if any kind of restrictions are imposed on the microSD card or the phone
• Check if the card you are using is not supported by the device or if it is having a physical damage
• Do check if this problem is there just because your phone can’t handle the memory card with the same storing capacity you are using
• If the other methods don’t work, format the card and check if this solves the problem

• Check if the camera lens is dirty. This can be a reason for the problem in your device
• One of the reasons for the Video-recording related common problems in Oppo A12 is the low storage space available. Check and empty the same
• Running the camera app in custom settings can be a reason for this problem in some cases
• You need to make it sure the problem is not caused just because your Oppo A12 camera lens is physically damaged
• There are certain chances that the problem is caused because of a software issue in the device. Update the OS if a new version is available and check if this fixes the problem
• Turn ON airplane mode and check if videos can now be recorded. If so, simply close everything running in the background and close notifications. Restart your device after this
• The problem might be there because you are using a third-party camera app your device cannot fully support. Check the same
• Restore all settings to default in video recording settings and check if the problem is gone

• Make sure the contact you are sending the message to is not blocked
• Check if the problem is there just because the message center number for the network operator is not correct or missing in your Oppo A12 settings
• Simply clean the message app data and check if the problem is solved
• Erase some older messages that are no longer required and check if this works
• Restarting your device may solve this problem. Try it and check
• Remove the SIM card from your device and reinsert. This may solve the problem. Try it
• Check if the problem is from the network provider’s end

• This problem might be there because the Airplane mode on your device is turned ON. Check and turn it OFF
• Eject the SIM tray and reinsert after 10 seconds. This may fix the problem
• Reset the network settings to default in case you recently customize them and check if this works
• Phone calls-related common problems in Oppo A12 are caused often when the network selection mode is set to manual mode. Switch it to automatic and check if this fixes the problem
• You might have blocked the phone contact you are trying to call. Check this in the block list
• Simply restart your device and check if this fixes the problem
• Make sure the call barring option is not turned ON because this can be a reason for this problem
• Install any pending software update and check if this helps you to fix the problem
• The reason for this problem might be a lack of calling credit. Check and fill the same

• Check if you are violating any WhatsApp user policy
• Switch to default settings in the settings and check if this works
• Check if the WhatsApp storage on your Oppo A12 is completely filled. Erase some data and try again
• Sometimes this problem is caused when a user login on the same account through multiple gadgets. Make sure you have not logged in your account from a PC/parallel smartphone at the same time
• There are chances that you are running WhatsApp on an outdated OS. Check and take the action required
• Simply switch to the latest WhatsApp version if you haven’t installed its updates for a long time
• Make sure something is not wrong with your internet connection
• Clear the WhatsApp cache data and check if this fixes the problem
• WhatsApp related common problems in Oppo A12 are caused in some cases when VPN is turned ON. Turn it OFF and check if the problem is gone