Hello mobile technician, here we will share with you the solution to fix Samsung Galaxy A21s A217F no sound, no ring, speakerphone not working. This solution can help on how to troubleshoot and repair the phone.
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| Samsung Galaxy A21s Speaker Solution | 
What causes Samsung Galaxy A21s sound problems
- Buzzer may be faulty.
 - Tiny and distorted sound often occurs when there is dust on the speaker or the speaker is faulty.
 - The coils may be faulty.
 - There is no continuity between the contacts and the speaker coil.