Question ADB TCPIP mode w/o cable

[Aqua1ung]

I've been looking around for a way to enable ADB TCPIP mode without cable, and I just couldn't find something that works without rooting the device first. The Tasker trick is waaay too complicated, and I couldn't make it work on my Pixel 7 Pro.

When root is available, things look simple: run "setprop persist.adb.tcp.port 5555" or modify /system/build.prop to include a line to that effect. Assume that I go to the trouble of rooting my phone, and make the requisite change in /system/build.prop, will I be able to un-root afterward while keeping the change I made intact?

Edit: here's a wild thought: maybe I can actually tinker with the official Android factory image, hence add the requisite line to /system/build.prop in vitro, as it were, repackage the whole thing as a modified image, and then flash it onto my (unrooted) phone. Will that work? Or does the flashing process check the checksum before flashing?

 

[ze7zez]

I've been looking around for a way to enable ADB TCPIP mode without cable, and I just couldn't find something that works without rooting the device first. (...)

Does the simple method described in the thread below not work?

How to install ADB on Windows, macOS, and Linux

www.xda-developers.com

 

[Aqua1ung]

Does the simple method described in the thread below not work?

How to install ADB on Windows, macOS, and Linux

www.xda-developers.com

For one, my adb doesn't seem to know the "adb pair" command ("adb: unknown command pair"). Moreover, the IP address provided by the "Pair with device" menu is funny, along the lines of 100.xxx.xxx.xxx, hence it's not an usual 192.168.xxx.xxx. Finally, this doesn't really lend itself to scripting, as the pairing code changes all the time.

 

[NepoRood]

For one, my adb doesn't seem to know the "adb pair" command ("adb: unknown command pair"). Moreover, the IP address provided by the "Pair with device" menu is funny, along the lines of 100.xxx.xxx.xxx, hence it's not an usual 192.168.xxx.xxx. Finally, this doesn't really lend itself to scripting, as the pairing code changes all the time.

Are your tools up to date? What is the output of:

adb version

 

[Aqua1ung]

Android Debug Bridge version 1.0.41
Version 28.0.2-debian
Installed as /usr/lib/android-sdk/platform-tools/adb

 

[NepoRood]

Android Debug Bridge version 1.0.41
Version 28.0.2-debian
Installed as /usr/lib/android-sdk/platform-tools/adb

Update your tools, you should be on 33:

Android Debug Bridge version 1.0.41
Version 33.0.3-8952118
Installed as /usr/lib/android-sdk/platform-tools/adb

 

[NepoRood]

I have a script for that, I forgot to include it...

Edit: can't attach it for some reason, anyways, here's a link to my git: update_platform_tools

 

[Aqua1ung]

Thanks. This is what I am getting when attempting to pair:

[email protected]:~$ adb pair 100.78.124.214:32989
Enter pairing code: 521129
error: unknown host service

 

[ze7zez]

Thanks. This is what I am getting when attempting to pair:

[email protected]:~$ adb pair 100.78.124.214:32989
Enter pairing code: 521129
error: unknown host service

Do you have your phone and PC connected via wifi to the same router?

 

[Aqua1ung]

Do you have your phone and PC connected via wifi to the same router?

Same router, yes, though my PC is on a wired connection.

 

[ze7zez]

Same router, yes, though my PC is on a wired connection.

I checked on my Windows PC and it does not connect when the PC is connected via cable.

It works when both devices are connected via WiFi.

 

[NepoRood]

I checked on my Windows PC and it does not connect when the PC is connected via cable.

It works when both devices are connected via WiFi.

I was about to see if I could do that, lol, my box is wired as well

 

[Aqua1ung]

I checked on my Windows PC and it does not connect when the PC is connected via cable.

It works when both devices are connected via WiFi.

Thank you. Anyway, it may not be of much help, as this procedure needs to be repeated after each reboot, and is not scriptable. I, for one, am interested in writing a script. For now, it's easier for me to connect the phone via USB and run my script every time after reboot.

About the rooting/un-rooting questions I was asking in the OP, any opinions about those?

 

[NepoRood]

Thank you. Anyway, it may not be of much help, as this procedure needs to be repeated after each reboot, and is not scriptable. I, for one, am interested in writing a script. For now, it's easier for me to connect the phone via USB and run my script every time after reboot.

About the rooting/un-rooting questions I was asking in the OP, any opinions about those?

As for things you can do with root, I have nothing to offer, in fact, I am totally against it. It just causes unnecessary problems with the device.

However, you *may* be able to modify the stock rom with an Android ROM Kitchen, emphasis on the "may".

 

[ze7zez]

(...) then flash it onto my (unrooted) phone. Will that work? Or does the flashing process check the checksum before flashing?

So what's would the point of OTA file signatures if anyone could modify the original ROM with dangerous changes?

 

[Naga Kiran K]

Thanks. This is what I am getting when attempting to pair:

[email protected]:~$ adb pair 100.78.124.214:32989
Enter pairing code: 521129
error: unknown host service

It worked fine for me after killing adb ($ adb kill-server)

 

[autormali]

Tasker and LADB app are working on my P7P perfectly, no cable required, no root - more info here.