Downloading from unknown sources keeps switching to 'on'

Ed, Please note that this Community deals mainly with the technical queries regarding AVG Windows products. AVG Android support is provided through email only. Please click on the following link (http://avgclick.me/AVGtechnical) and fill out your details, select as Android then the name of AVG Program that you installed in your mobile and in description please completely explain about your issue and finally click on Email option. Also when filling out your details choose Yes for the Question "Are you currently using any paid/trial AVG products?" and click on Email option. The AVG mobile team will reply back to you via email with a resolution.
AVG Guru

I have s Doogee phone. The setting to stop allowing downloads from unknown sources keeps resetting itself to 'allow' everyone I switch it to not allow

Ed, Please note that this Community deals mainly with the technical queries regarding AVG Windows products. AVG Android support is provided through email only. Please click on the following link (http://avgclick.me/AVGtechnical) and fill out your details, select as Android then the name of AVG Program that you installed in your mobile and in description please completely explain about your issue and finally click on Email option. Also when filling out your details choose Yes for the Question "Are you currently using any paid/trial AVG products?" and click on Email option. The AVG mobile team will reply back to you via email with a resolution.
AVG Guru