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Need Guidance to update SystemUI.apk
Hello, I am a new Tinker Board user.

I have a Tinker Board S with Android 7.1.2 ( installed in eMMC and Rooted per Magisk instructions on the forum.  My project requires me to make a small edit to the USB permissions file (Classes.Dex) of the SystemUI.apk.  This has been done via Baksmali/Smali-2.1.3 and reassembled with the standard Android Studio debug signature and also without updating the signature.   
However, I am not able to replace the existing SystemUI.apk with ADB-Push, Install, or rooted file manager.  Please, Can anyone give me guidance to obtain the matching signature if possible or force Android to install the modified apk in a working manner.

I am in Awe of all that this group has accomplished, Thank You.
[-] The following 1 user Likes tomdroid's post:
  • TheOne
Thumbs Up 
need same  thumbsUP !

my SystemUI.apk at Android 8.1 has no classes.dex

how can fix the USB Permission at Android 8.1 ?

regards thanks

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