adb should already be setup in PC.
For Android earlier than version 4.4.x, root access may be required.
Some commands would not work on Android earlier than version 5.1.
Jump to heading "Apps for apps" if you're unfamiliar or uncomfortable with command-line and/or the command-line fails to solve your issue.
Edit: cut the chase in the earlier solution ...
There's a few issues going on here.
Permissions and storage use
The "Draw over other apps" permission and "Allow background data" permissions have nothing to do with storage. If you're only changing these settings because you want to reduce storage use, you're doomed to fail.
What is "Draw over other apps" for?
This permission allows an app to draw an ...
This is to prevent 'Tapjacking'.
It works in a surprisingly simple way – you download an application and open it, which triggers the installation of a second, this time malicious, application. Then, when you press a button on the seemingly innocent application, you are actually clicking a button on the malicious application that is hidden within it. So, ...
Thanks a bunch @Firelord ! I have finally found the app which has been preventing me from installing apk's and performing adb backups.
For me I found it was an app called Battery Mix Read on to see what I did and how I did it.
Many people have had issues with Installing apk's and not ...
If you're using Android 6.0 Marshmallow, you can use its native permissions manager.
From an article on BGR,
Android 6.0 Marshmallow has a lot of highly anticipated new features and one of them is something iPhone users have had for years: Granular app permissions. Phone Arena installed the latest developer preview of Marshmallow and posted some terrific ...
Deafult options, no osd, max smoothness
Deafult options, osd, max choppiness
With disable HW overlays I get average smoothness w/ and w/o osd apps.
I think that only the last app requesting an hw overlay gets GPU access, the rest get offloaded to CPU, resulting in crappy rendering.
But a 3dmark benchmark shows this:
Default options, osd disabled 30fps
what is its source: is it caused by recent change to Contacts or Nova Prime?
Rahul in comments has pointed the reason (thanks Rahul). It is an OS feature introduced from Oreo (and the likely reason you didn't see it earlier- service folks must have upgraded it while under repair). For more see Android Developers : shortcuts overview
is there any ...
Thanks for adding the comment. This looks like the "Navigation Dock" feature of Huawei's EMUI. Because these Chinese system skins will include all features that are included with an iPhone.
You will find the option to disable if you search for navigation dock in your settings app.
It should also be somewhere here (varies slightly per device).
Settings > ...
I turned on two debugging tools to show me where the user touches. One or both of these are implemented via Screen Overlays, so I have to turn them off, and stop debugging, until the settings changes are complete...
On Android 6.0.1
Turn off Android Settings/System/Developer Options/Pointer location
And you might need to turn off "Show touches" as well, ...