The reason I went behind other 3rd party anti virus was because my app memory was falling below 5 mb even when I had only whatsapp,google maps and a flashlight app. I had only english language installed on my device. After 2 3 rounds of hardcore battery pulls and wipes, that app memory stopped going down. Also my screen would go blank without any reason for 10 to 20 seconds. it still does after countless wipes.
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