How to enable the diagnostic port on my HTC One A9?

[rgrivero]

I try to enable the diagnostic port with these codes:

setprop sys.usb.config diag,adb or setprop persist.usb.eng 1

but not work, no new device appears. I have all drivers installed on my pc and my phone it's rooted, s-off and the bootloader unlocked, and android 7.0.
My question is:
is there an other way to do this?

 

[wahablepirate]

I try to enable the diagnostic port with these codes:

setprop sys.usb.config diag,adb or setprop persist.usb.eng 1

but not work, no new device appears. I have all drivers installed on my pc and my phone it's rooted, s-off and the bootloader unlocked, and android 7.0.
My question is:
is there an other way to do this?

##3424#