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my phone turns off randomly and when it does it heats up. when it cools down I can charge it again so it can boot up. now it wont charge and wont open. I dont know how to repair cellphones and I dont have immediate access to parts hope someone would help me thanks

@wade90 heat=shortcircuit. In the case of your phone, I’d start with a new battery and re-evaluate. Use this guide Samsung Galaxy S7 Battery Replacement and get the part for it from here Galaxy S7 Battery