Samsung GT-S5300 Mic Modification Jumper Ways
Samsung S5300 Mic Not Working
Samsung Galaxy Pocket S5300 Mic Replacement
If you are facing mic problem in Samsung Galaxy Pocket S5300. You can not recod voice in Samsung Samsung S5300, Check the mic hole with housing (casing body) if there is some dust or the hole is blocked and your voice can not reach to the mic.
Do not apply much heat because it can harm your skin and mother board also.