In nokia asha 302 earspeaker problem occur due to water damage or rust or carbon. so if you are facing speaker not working problem then look at the diagram given bellow it will help you to solve these problems.
Nokia 302 Earpiece Ways Jumper
Nokia 302 Earpiece Ways Jumper
Nokia 302 Earpiece Solution
Nokia 302 Ear Speaker Problem
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First See Your Phone Pcb For Some Rust Or Carbon Clean Whole Mother Board Of Your Phone With Any Good Cleaner For Water Damage.Apply Low Heat With Tour Hot Air Gun And Keep In Mind It Should Not Be To Much Because It Can Be Damage The Mother Board Of Your Phone.
Here Are The Solution Please Ovserve Carefully.
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