(adsbygoogle = window.adsbygoogle || []).push({}); I AM ON 4.21.2 REX and cannot use the 999 downgrader i start to do it and then a error "8002F169"
any help want to go back to 3.55 as i like it more and i dont have a flasher

thanks and add my on skype bearcatk

Try downgrade from recovery mode