Updates to the software add new and improved functionality for iOS optimization. They also include bug fixes for issues that have been reported with various iPhone models. If the sluggish charging issue you're having with your iPhone X is caused by a software bug, a fresh iOS update will almost certainly fix it. Check for available software updates if you haven't already.
Go to Settings->general->Software Update to do so.
If a new update is available for your device, an update notification will appear. Before you download and install a new software update, make a backup of your vital data for protection.
Suspicious apps should be removed or disabled.
If your iPhone X suddenly starts charging slowly after installing a new app, that app is most likely to blame. Either it's causing severe battery drain or it's causing the iPhone's charging system to malfunction. If this is the case, the best course of action is to delete or uninstall the suspect app from your iPhone in order to restore regular charging. On your iPhone X, follow these steps to delete apps:
- Press and hold the app icon lightly until it jiggles and the X appears on top of each app.
- Then, on the suspected program you wish to delete, touch the X.
Alternatively, you can go to the settings menu on your iPhone X and delete the questionable app from there.
Go to the Settings-> General->iPhone Storage menu to do so. Tap the app you wish to uninstall from this menu. then select the option to Offload App or Delete App.
After you've finished deleting questionable apps, reset your iPhone X and try charging it again to check whether what you did worked. Also, don't use your iPhone while it's being charged.
