title: adb remount permission denied, but able to access super user in shell -- android
body: <p>so, i'm trying to push some files to /system on android device (zte)
  I've rooted, connected with ADB, </p>
  
  <p>adb remount -> I get permission denied
  adb shell su -> I'm able to access shell and create folders etc and edit filesystem</p>
  
  <p>(but in shell I can't copy a file from my computer to device)</p>
  
  <p>Any help please</p>