How do you deal with a Trojan virus on Android?

sthill7

Estimable
Mar 30, 2015
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So my ten-year-old brother got ahold of my mom's LG G3 and a a field day with it. He downloaded and in downloaded countless Minecraft, Five Nights at Freddie's, and Goat Simulator knockoffs that all looked pretty shady to me. Now the phone is infested with one or more trojan-type viruses. Is there a way a ridding the device of the malware, or do I have to error the phone's memory completely?