Trojan virus detected after factory reset (Android)

Hello Andrew,
You've reached the AVG community support forum.
We've a specialized mobile team, who'll help you with this issue.
We've created a new case on your behalf and escalated it to them, they'll check and get back to you via email at the earliest. Please make a note of this new case number -22065136 . Meanwhile your patience and cooperation is very much appreciated.

Thank you for your understanding.

I tried multiple factory reset but it looks like a trojan keeps showing app here: com.silead.fingerprint trojan.LNK.gamaredon.GEN.
How can this issue can be solved?
Thanks in advance for tour suggestions

Hello Andrew,
You've reached the AVG community support forum.
We've a specialized mobile team, who'll help you with this issue.
We've created a new case on your behalf and escalated it to them, they'll check and get back to you via email at the earliest. Please make a note of this new case number -22065136 . Meanwhile your patience and cooperation is very much appreciated.

Thank you for your understanding.