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Sadly, if you don't know where the "system" is.. Then you shouldn't even be trying to modify anything within it.Another thing. A lot of the tutorials I am reading say something about editting build.prop in /system, however, I can't find anything of that sort on my Android S4? I am on a Windows 8 laptop and I'm trying to fix my resolution problem. Where is build.prop and where is /system?
Anyways, when I try to change the DPI from my computer (adb shell wm density 480) this message pops up - error: device unauthorized.
Thank you so much... but now, there's another problem. Man, they just keep coming on... So, when I type "adb devices" into my cmd, it just comes back with this - "'adb' is not recognized as an internal or external command, operable program or batch file. Is there a fix for this or am I just doing something wrong?Close the command prompt window and open a new one. Type:
adb devices
At this time, watch your phone's screen. If it's not already on, bump the power button to turn it on. You should get a pop-up that allows the connection. Tick the little checkbox to "always allow", then press OK.
Then rerun the DPI command in a root shell. I.E. adb shell command and make sure you have a # prompt. If not, type su to get one (root shell), then repeat the DPI command at that point.