adbd Insecure lets you run adbd in root mode if your device is rooted.
(Note that if you are running a custom kernel, it is likely that it already implements this functionality)
If you are running a stock (made by the phone manufacturer) kernel on your device, chances are adbd is running in "secure" mode, even if you are rooted. This app lets you run adbd in "insecure" mode, which gives you root access in "adb shell", allows access to system files and directories through "adb push/pull", and lets you run the "adb remount" command to make your /system partition writable.
Of course, your device must already be rooted for this to work. It may not work with "S-ON" devices and locked bootloaders.
This app does not make any permanent changes to your device - a reboot will undo any modification. That's why there is also the option to enable this feature at boot.
Note that if you have USB connected when the app activates or deactivates adbd root mode, you may need to unplug/replug the cable or run "adb kill-server" on your computer before adb will work again.
Galaxy S 4 GT-I9500
Downloaded, installed and selected the option in the app.
After this, when i plug the phone in to the computer it's only charging and nothing appering on the computer.
Removed the app, rebooted the phone and everything is ok.
Why i have this issue?
No, that command does actually work, prefixed with "su". In fact, all of the things mentioned are still possible with su, inside adb shell, even without adbd insecure, on one of the devices this program is made for.
The thing is, say you want to pull something from a location thats "protected", you'd first have to shell into the device, "su", move it to a location accessable to adbd, logout of the shell, then adb pull. Push ? Same thing, other way around.
Same thing goes for a large number of commands, you can skip the entire "su" part needed on some devices.
Everything this enables is still possible on every rooted device, it just saves you quite a bit of typing (and hairpulling) for those who do not have adb running as root. If you use adb as much as I do, this is absolutely something you want.
On the other hand, if you're the occasional adb user only, you may not know what to do with this - and then this is not for you
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