I have an AOCWEI tablet. No problems until a few weeks ago. I started getting bombarded with Ads. After trying several malware/antivirus apps that failed to find the issue, Play Protect picked up a App called Locket. The description says it uses my device to commit advertising fraud. Locket App has installed itself into my system folder. I've used uninstall but it keeps coming back. I've found it in my system Apps and uninstalled it from there. It came back. I did a full system restore and it still there. I have removed all permissions but it won't go away. How do I get rid of it for good?
PS tablet is factory, not rooted, I've never downloaded from 3rd party only Google Play store.
PS tablet is factory, not rooted, I've never downloaded from 3rd party only Google Play store.