Customizing the message font size helps you tailor it to your eyesight.
Follow these steps to adjust the message font size on Samsung Galaxy J2 Pro 2018:
Step 1: Access the messaging app.
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Step 2: Choose the three dots and go to settings.
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Select the three dots and access settings.
Step 3: Choose the font size.
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Choose the font size.
Step 4: Select your preferred size.
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Select the size you prefer.
That completes the setup. Wishing you all success.