These non-unlockable bootloader verizon phones that I've been saving from the trash. They make ok wireless camera and keypads and stuff. But not being able to enable adb in tcpip mode at boot without taking them to my computer has been preventing me from relying on them for anything.

I'd just like to start adb in tcpip mode at boot but making this change requires root access.

I searched for android 9 exploits but they all seem to be theoretical proof-of-concept. I imagine I need for fork over a couple grand on the exploit gray market to get the actual working version ?

Is that how it works ?

Will I ever be able to get root access on my phone ? (even if it's not permanent and lost on reboot, I just need to make a few changes !)