1. First find and open the WeChat APP on your phone.
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2. Next enter the WeChat page After that then select Click "I" pointed by the red arrow, then select your profile picture and click to enter.
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3. Then select the point pointed by the red arrow " More".
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4. Next, select the point pointed by the red arrow of "Personal signature".
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5. Next, enter the required text in the text field text and click "Save".
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