How to Deal with Lagging Phones? Try These Solutions

Smart phone suddenly starts to lag. How to fix this issue? Here are some situation-based solutions.

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How to Fix Phone Lag When Unlocking the Screen?

Clear Notifications

Too many notifications in the notification bar may cause slow or stuck on loading screens. You can manually select and remove them or tap to clear all.

Disable Notifications from Unnecessary Apps

Go to Settings, search Notifications, then tap the unnecessary app and disable Allow notifications.

Turn off Screen or Restart

If the screen is frozen, turn it off or reboot the phone, then try unlocking the screen again.

How to Fix Lag When Using Third-Party Apps?

Remove Background Apps

Too many apps running in the background may cause lag due to insufficient memory. Follow the steps below to clear them:

Virtual navigation: Touch


at the bottom, then tap .


Gestures: Swipe up from the bottom of the screen and hold to show all apps running in the background, then touch .


Front navigation button: Swipe left or right on it to show all apps running in the background, and then tap .


Clean up with Optimizer

You can go to Optimizer>Cleanup, delete useless data, and uninstall rarely used apps, to ensure the available memory above 20%.

Reboot to Clear Cache

The phone will generate loads of cache if not turned off for a long time, which may result in lag issue. Consider restarting your phone once a week.

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Disable (Ultra) Power Saving Mode

In the power saving mode or low battery condition, the phone will reduce performance to save power.

Access Settings>Battery, disable Power Saving mode and Ultra Power Saving mode, and ensure the battery percentage above 20%.


Use Stable Networks

Poor network will cause apps to launch slowly or even get stuck. A good Internet connection can avoid this situation.

*Reminder: Too many devices connecting to the same network may also cause lag and instability even it shows full 4G signal.

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Keep Flash on and Focus Manually

The camera processes the image to improve its quality in low-light conditions, which may take a few seconds to complete. To reduce the time required, you can enable Flash and touch the screen to focus manually.

Uninstall Third-Party Photography Apps

Third-party photography apps may conflict with the preinstalled Camera App. Uninstall those apps and then try again.

Clear the Camera Cache

Go to Settings, search and tap Apps, touch Camera>Storage>CLEAR DATA and CLEAR CACHE. This will restore the Camera parameters to its default values but will not delete photos in Gallery.

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Apart from the solutions above, you can also take your device and proof of purchase to an Authorised Service Center for help. All the certified technicians there will do their best to deliver you high-quality and warm services.

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*Reminder: 1. The instructions above are followed with EMUI 10.1 as an example. It may be slightly different in other versions. Please adjust according to your actual situation. 2. The data on the device will be deleted during repair. Please back up your data before repair.

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