I believe CEParsons has the correct steps to change your Ad Blocker settings across all apps. If you are just trying to turn it on for one app, like Google Chrome. You can follow the steps below.
> Open Chrome and tap the three vertical dots (top-right corner). > Tap Settings and then Site settings. > Tap Intrusive ads (sometimes just labeled "Ads") and toggle the switch ON to allow ads (or OFF to block them, > depending on your version's wording). > Tap Pop-ups and redirects and toggle it ON to allow them.
