SC20 UART : Permission Denied

I’m New to Qucetel EVB,
I’m using SC20-05 EVB with android 7.2. when im trying to get UART access it showing me permission denied. any one can guide me how to allow it read serial data from extranal device

Hi Dattatray_Bhairi,

First, you can set “adb shell setenforce 0” to close selinux and do a try again. If it is ok, then you need add permission in your code according to demsg log.

when i tried to “setenforce 0" it stuck at bootloop