How to fix your Samsung Galaxy A6 2019 battery that drains so quickly after an installing update [Troubleshooting Guide]

One of the common issues encountered by many smartphone owners after installing a new system update is on rapid battery draining. Apparently, the problem is attributed to software errors and is usually rectified by some workarounds unless hardware damage is present. In most cases, errant applications are to blame.

Many apps, particularly background apps would tend to go rogue following a new platform transition. When this happens, there’s a tendency for other functions to be affected and begin to show some adverse symptoms. The highlighted solutions below are used to deal with a post-update battery draining issue on the Samsung Galaxy A6 2018 smartphone. If you own this device and end up facing the same problem after installing the latest system update, then this context may help you out. Read on for more inputs on how to deal with the problem.

Before we proceed, if you’re looking for a solution to a problem with your phone, try to browse through our troubleshooting pages to see if we support your device. If your phone is in the list of our supported devices, then go to the troubleshooting page and look for similar problems. Feel free to use our solutions and workarounds. Don’t worry it’s free. But if you still need our help, then fill up our Android issues questionnaire and hit submit to contact us.

First solution: End/close all background apps then reboot your phone.

Background apps or apps that you’ve recently used but not closed during the system update installation might have gone rogue and triggers the phone processor to continuously work until it gets exhausted. This then leads to more power consumption and quick battery draining. To clear this out, end all background apps on your Galaxy A6 2018 with these steps:

  1. Tap the Recent Apps key on the left side of the Home button of the phone. Doing so will open a list of app background/running apps.
  2. Tap and drag an app to either corner of the screen to close the application. Alternatively, you can tap the X icon on the top-right corner of the app’s preview.
  3. To close all running apps at once, tap the Close All button at the bottom of the screen.

After closing all background apps, reboot/soft reset your Galaxy A6 2018 to dump cache and errant data from the internal memory and to refresh the operating system. Minor errors are also cleared in the process. Here’s how a soft reset/reboot is done on your Galaxy A6 2018 smartphone:

  1. Press and hold the Volume Down button and Power button simultaneously for about 10 to 20 seconds or so.
  2. Release both buttons when the Samsung logo appears.

Allow your device to complete the reboot process then use it and see if the battery is still draining so quickly. Continue to troubleshoot if the problem persists.

Second solution: Install pending app updates.

Some apps may also need to be updated after a new system update is implemented, otherwise they’ll misbehave. Doing so will also ensure that these apps will continue to run smoothly on the new platform. To make sure you don’t miss any updates, check for and install pending app updates on your Galaxy A6 2018 with these steps:

  1. Tap the Apps menu icon.
  2. Tap to open the Play Store app.
  3. From the Play Store main screen, tap the Menu icon or three horizontal lines on the top-left corner..
  4. Go to My Apps & Games.
  5. Navigate to the Updates section then tap the Update button next to the application name. Doing so will install pending update for the app.
  6. If you see several pending app updates to install, tap the option to Update All instead.

Allow all your apps to finish updating and then restart/soft reset your Galaxy A6 2018. It is imperative to perform a soft reset or reboot on the phone after installing updates to ensure that the new software changes are properly implemented and likewise to prevent any apps to misbehave.

Third solution: Check battery usage and  manage apps.

It will also help to view the current battery usage details on your phone to find out which app has the most power consumption. If necessary, you can disable that app or have it deleted completely from your phone. Here’s how to check battery usage on your Galaxy A6 2018:

  1. Tap to open the Apps menu from the Home screen.
  2. Tap Settings.
  3. Tap Battery.
  4. Tap Battery Usage to open the screen containing the details of the past and present battery usage on the device.

Review the battery usage details and see which of your apps is using the most of your phone’s overall power. If an app shows unusual power consumption, then that is likely the culprit. In that case, manage the app to limit its battery usage or else delete/uninstall the app from your device.

Fourth solution: Wipe cache partition on your phone.

Wiping cache partition clears temporary data that are stored as cache in system folders. System cache can also become corrupted after a system update and when this happens, there’s a tendency for other systems to malfunction. To make sure this isn’t what’s causing trouble to the battery system of your phone, wipe cache partition on your Galaxy A6 2018 with these steps:

  1. Turn off the phone completely.
  2. Press and hold the Volume Up and Power buttons simultaneously for a few seconds and then release both buttons when the Samsung logo appears.
  3. As soon as you see the Android bot logo, tap on the screen to enter recovery mode. You will then a list of options including reboot system now, reboot to bootloader, wipe data/factory reset, wipe cache partition, and others.
  4. Press the Volume Down button several times to highlight/select wipe cache partition option.
  5. Then press the Power button to confirm selection. Your phone will then start wiping cache partition and then prompts you to Reboot system now when done.
  6. Press the Power button to confirm system reboot.

Fifth solution: Reset your phone to factory default settings.

As your last resort if all else failed to fix the issue, you can perform a master reset to restore the default settings on your Galaxy A6 2018. This can also help clear fatal system errors or complex data corruption from the recent update installation. This reset however will delete everything from your phone including personal information and saved data. That said, creating backups is needed beforehand. Here’s how a master reset is done on your Galaxy A6 2018:

  1. Tap to open the Settings app.
  2. Navigate to Cloud and accounts.
  3. Tap the option to Backup and restore then turn on Back up my data and Restore options, if necessary.
  4. Go back to Settings-> General management menu.
  5. Then tap Reset.
  6. Select Factory data reset from the given options.
  7. Then tap Reset device.
  8. If prompted, enter your password or PIN to continue.
  9. Then tap Delete all to confirm reset.

Aside from the given solutions, there are also other ways to preserve battery life on your Galaxy A6 2018. You can adjust the display settings like lowering the screen brightness or using still themes and wallpapers instead of animated files (GIFs). Also ensure that your phone is getting a good reception. Poor reception or low to no signal can also trigger the phone to utilize more power as it attempts to establish communication with your network operator. Try not use mobile data in areas with low signal especially if you’re running short of battery.

Calibrating the battery can also help. If you haven’t yet done this, then try it this time and see what happens. Battery calibration mainly involves using the battery until it’s totally emptied, then charge the phone up to 100 percent. After charging, use the phone to drain the battery and then get it fully charged again.

Other options

You may have to escalate the problem to your carrier or Samsung Support if it persists after trying all possible means to fix the problem on your end. Doing so will prompt them to make further assessments and if necessary, develop a fix patch to address rapid battery draining issue on the Galaxy A6 2018.

Alternatively, you can take your device to the nearest Samsung service center in your area and have it diagnosed by an authorized technician for any indications of hardware damage particularly on the battery. Although the problem started after installing an update, the blame isn’t always on a bad update but rather on a damaged component.


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