Using adb push file to /system/bin return read-only file permission

If i changed mode returns the same error

I'm trying to push su to /system/bin, why it fails on 5.1, and seems to work on older versions (based on reading through forums)?

  • 3
    You can't write to a /system directory without root permissions. Lollipop devices in general cannot be rooted in this way due to Android permissions. Although you didn't state the device it is best to use a standard rooting method of custom recovery and flashing the SuperSU ZIP installation file.
    – acejavelin
    Oct 26, 2016 at 13:39
  • @acejavelin i will try
    – Error
    Oct 26, 2016 at 13:44


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