How to replace battery
my phone battery is dead
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Here's a video that shows how to replace the battery in the phone.
Search online for Vivo Y21 battery to find battery suppliers that suit you best.
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How to repair battery
crwdns2957956:0crwdnd2957956:0 Model Sravan crwdne2957956:0
battery problem
crwdns2957956:0crwdnd2957956:0 Meet Mandeep (Deep Saab) crwdne2957956:0