Can you use custom .idc files without root?

StriderScales

Member
Jun 4, 2013
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I'm looking into connecting my phone to an external display. I'm not trying to use DeX, but rather mirror my screen to a touchscreen monitor, and accept input from the monitor. I haven't bought any hardware yet, as it looks like most smallish (7 inch) displays are for use with a Raspberry Pi, and when connected to an android, the touch input either doesn't work, or more often than not, appears as a mouse, meaning input from the screen simply moves a cursor around.

If I were to root my device, I could define the input using a custom .idc file, but without root, there's no way to place the .idc file into the system folder, rendering that route useless.

Is there any way to force my phone to use an alternative .idc file? Maybe a piece of hardware between the display and the phone that tells the phone how to handle the input, rather than letting it auto-detect incorrectly?