The Infinix Smart 7 does not have a specific screen calibration setting like some other devices. However, you can troubleshoot issues with your phone's touchscreen by removing the screen protector and cleaning the screen, which might improve touch sensitivity. If you're experiencing ghost touch issues (where the screen seems to register touches without you touching it), you can try gently bending the opposite edges of the screen to relieve pressure on the digitizer.
This video might also help.
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