Does factory reset remove viruses android?

No a Factory Reset does NOT return the Android operating system on your phone back to its original state. That's an often repeated but incorrect statement. read more

Step 6: After format , Remove cable USB , put phone into Recovery Mode then Factory Reset Step 7: after Factory Reset , reset System and your Virus should be clean. read more

Unfortunately, if none of the above solutions help in clearing up the malware on your device, you don’t have any other option but to reset your Android to factory settings. Yes, that means you will lose precious data, but that’s better than using a compromised phone or tablet. read more