I am not complaining, it's awesome, but strange. I have a rooted Samsung a5, sm a500h, android 6.1.

Few weeks ago I installed adaway, and removed it because it couldn't block youtube ads.

And now the vast majority of apps don't display ads anymore, with the exception of musixmatch and youtube. I browse webpages using chrome, i see no ads on any website, including forbes.com and it let me in without complaining about an ad blocker, on tumblr, the ad space says "couldn't connect to server x"

I did clean my device multiple times, using the likes of clean master, I did restart it multiple times. Is it possible that adaway did all that?

  • I'm happy but a bit sad, I like to help fellow dev earn some money, I just hate youtube ads thats all coz they waste my time, it's like i have to watch 2 videos instead of 1
    – Lynob
    Oct 10, 2016 at 20:29
  • Lynob, sounds like the host file didn't reset. It's fixable, don't worry. I'll write it as an answer
    – Dan Brown
    Oct 10, 2016 at 20:31
  • Please see this new article 2017/02/10 10 most useless apps and games for Android. Most prominent, but specifically named in the list: Clean Master (along with quote-Booster apps, Anti-Virus apps, and Task Killers-unquote)
    – wbogacz
    Feb 12, 2017 at 2:07
  • @wbogacz thanks for the article, good read, I removed clean master shortly after asking this question for the reasons mentioned in that article, it became huge, it became junk, rather than junk cleaner
    – Lynob
    Feb 12, 2017 at 9:53

1 Answer 1


Somebody gone borked up their hosts file

Luckily, it's an easy fix. Your going to need root, and a root file manager (Like ES file explorer)

In your file explorer, go to /system/etc, and look for a file called 'hosts'. Open it, and remove EVERYTHING except the top line to disable the AD blocking. If you want to, of course

But why?

AdAway and similar apps use root auth to write to the hosts file the locations of ads. This then blocks them due to what said file does (it's a blacklist, essentially)

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