I'm guessing you have TalkBack on right? There's a couple ways to turn that off. Some software versions will let you draw an "L" shape with your finger in the middle of the screen to bring up Global Context menu which you can tap. After that, you'll want to tap Pause Feedback then tap OK.
Once this is done, you should be able to use this path to turn it off: Settings > Accessibility > Vision > TalkBack.
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i had d same concern & coz of u i was able to fix it...tx & gud day