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i bought an i phone 6s clone . but when i charge it the phone says its charging but the battery percentage is not increasing .. some time when i keep it for 30 mins its get from 15% to 16%or17% but again keeps on draining . Help me . I have changed the battery to brand new one but still not charging .

Indian Gamer this will be difficult to properly determine. the issue here is that there are most likely no scheam,tics that can help. From your description it sounds like you are having issues with the charging circuit, most likely on the PMIC (power management IC) For that you’d need a schematic to see which components are involved with this circuit. You can try and post some really good clear images of both sides of your circuit board with your question. Use this guide for that. May be someone recognizes the circuitry.