Backup entire phone


I wanted to know if there is a possibily to backup everything from your phone? (like apps, pictures, music, videos etc.) if so how? Is there a app? I want to back up my phone because i am planning on doing a factory reset on my phone because i am getting some errors with certain stuff, but i read that doing a factory reset will cost in everything being removed from your phone, thats why i am looking for a way to back up everything
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