How to enable adbd to listen to a port at boot time in Android?

Question

I have a rooted HTC Hero, and what I want to do is to enable the adbd to listen to a port at boot time.

I tried some code found here:

setprop service.adb.tcp.port 5555
stop adbd
start adbd

in an Android shell and it works great.

I tried to change the init.rc file. I added the above code in init.rc and I replaced it with the original file, through these commands:

adb push init.rc sdcard

adb shell
adb su
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /
adb cp sdcard/init.rc /

The file is replaced successfully, but when I reboot my phone and try to connect through:

adb connect <IP>:5555

the connection is not being established.

Any ideas?

(PS. I don't want to use the remoteADB application and a shell command like am start -n ... )

This will surely help: http://stackoverflow.com/questions/9768103/make-persistent-changes-to-init-rc — nullpotent, Sep 03 '12 at 16:12

score 63 · Answer 1 · edited Oct 24 '17 at 11:40

63

This will make it persistent:

setprop persist.adb.tcp.port 5555

ADB over USB might not be available after reboot. To undo this setting, do:

setprop persist.adb.tcp.port ""

edited Oct 24 '17 at 11:40

Robert Siemer

32,405
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answered Dec 11 '15 at 08:54

Zoli_K

916
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5

You have no idea how much this find has saved our bacon - so simple & works - why has this not gotten more up-votes? Cheers. – Peter Flower Apr 19 '16 at 09:41
2

Where are these properties stored? Compared to build.prop? – JohnyTex Aug 30 '16 at 07:17
On my Sony Xperia Z1 compact with stock ROM Android 5.0.2 the USB keeps working even after reboot. – Robert Siemer Oct 24 '17 at 11:42
2

If you are using adb, the command is `adb shell setprop persist.adb.tcp.port 5555`. – Lokesh Jul 29 '20 at 02:40
You sir are awesome sauce :) I know this is old but still very useful! – Jason Waltz Aug 14 '20 at 08:11
I needed a nuance - First `adb shell` then `su` then `setprop persist.adb.tcp.port 5555` – RichardVNL Mar 04 '22 at 10:38
useless for me :setprop persist.adb.tcp.port 5555; setprop persist.sys.start.adb 1 \n\n – CS QGB Sep 02 '22 at 15:03
@JohnyTex persistent properties are stored in /data/property/persistent_properties – Zibri Oct 28 '22 at 13:29
Great! Will it work without root? – Giorgio Nov 20 '22 at 17:09

score 1 · Answer 2 · answered Mar 22 '13 at 06:57

1

You need to unpack, modify, and repack the initrd inside the boot.img. You can find more on this at:

https://groups.google.com/forum/?fromgroups=#!topic/android-platform/w37x_WCrhMM

answered Mar 22 '13 at 06:57

jduck

109
3

Or B · Answer 3 · 2013-09-01T10:06:09.857

Why don't you try using a BroadcastReceiver of the action BOOT_COMPLETED?

You can register one in you Manifest:

        <receiver
        android:name="com.myapp.BootCompleted"
        android:enabled="true"
        android:exported="false" >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>

and in the class you can do whatever you want when boot is completed:

import java.util.*;
import android.content.*;

public class BootCompleted extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent) 
    {
        // Do the actions you want
    }
}

How to enable adbd to listen to a port at boot time in Android?

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