format and install new OS to get rid of viruses

Firstly, some background

• Anti Virus. Android devices are not susceptible to viruses as Windows machines are. To understand more see this Is an antivirus really needed for Android?. So, installing anti virus is not helping any, unless it scans for malware also




• Malware. Malware in Android devices works by losing itself into /system ,i.e., behaving as if it is a system app. Factory Reset does not change anything in /system partition, so it does not help. You could try installing apps suggested here to check for malware Some program is showing ads on my desktop... How can I catch it?. You could read this for tell-tale symtoms of malware

Second, if you have a malware that can't be removed, only thing to do is to flash a new OS or stock OS a you rightly thought. This is going to be a challenge as getting reliable OS may be a challenge and you would need to search in various ROM forums of you can locate one that works on your device.You would find flashing instructions provided with ROM.

Important Note

Any ROM that works on Samsung S6 (Original) won't work on your device and may cause your device to be bricked. Be sure to flash a ROM meant for your device. Please read these to understand

• Can I install a ROM made for a different device?:




• Feasibility of flashing a ROM (meant for original device) on a re-branded device

Is it tough to flash a new ROM? Not really, if you take your time in understanding the instructions IMO, finding a ROM from a reliable source is the biggest challenge. My search (not very thorough) didn't lead me to any source