I would like to install logcat as system-app on a non-rooted phone.

Is that possible (using adb without root-access)?


No. A system app has to be either installed by root or signed with the same key that signed the ROM image.

  • So adb install will not work in that case? – Nils Jul 11 '13 at 21:37
  • adb install just installs an app in the usual way. It doesn't make an app a system app. – Dan Hulme Jul 12 '13 at 8:06

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