Develop Reference

Android SMS limit on Android 4.0.4

I am working with phone with Android 4.0.4 (I know, the old one)
Now I need to override limit of 100 sms send per hour (Below android 4.1 there should be limit 100 sms per hour. Since android 4.1 there is limit 30 sms per 30 minutes).
Since Android 4.2 it is possible via adb shell settings put global sms_outgoing_check_max_count.
But I have no idea how to do it on Android 4.0.4 without rooting because there is no "adb shell settings" command. Any idea?
P.S. I am not creating app. I need to override this limit ideally in android settings via adb or by using another app for this (if it exists)

You could do it by creating the application and overriding the SmsUsageMonitor:
com.android.internal.telephony.SmsUsageMonitor
It should basically work on any phone, without rooting it first.

Could you try to follow theses steps via ADB :
1.Open Command Terminal
2.Type in adb shell hit enter
3.Type in su hit enter
4.Type in sqlite3 /data/data/com.android.providers.settings/databases/settings.db hit enter
5.Type in INSERT INTO secure (name, value) VALUES('sms_outgoing_check_max_count’, 9999); hit enter
6.Type in INSERT INTO system (name, value) VALUES('sms_outgoing_check_max_count’, 9999); hit enter
7.Type in .exit hit enter (you should now see a hash tag again instead of sqlite>. If not conitune typing in .exit and hitting enter until you are)
8.Type in sqlite3 /data/data/com.google.android.gsf/databases/gservices.db
9.Type in INSERT INTO main (name, value) VALUES('sms_outgoing_check_max_count’, 9999); hit enter
10.Again exit back to where the command line has a hashtag
11.Type in reboot and hit enter.
I don't have a phone with Android 4.0.4, so i can't confirm that it will work
Happy testing !

you have to use abd command to open that restrictions here is the link for tutorial change sms limit
1.Go to the android platform tool directory
`(C:\Users\username\AppData\Local\Android\Sdk\platform-tools)``enter code here`
open command shell by using Shift+mouserightclick and enter this command
adb shell settings put global sms_outgoing_check_max_count 5
settings put global sms_outgoing_check_interval_ms 9000000
I am actually reducing the number so Android warns me if I have sent more than 5 SMS messages within 30(9000000) minutes. Change “5” to whatever number you want

What exactly do you want to acheive with over 100 SMS per hour?
I am sure there is a way more efficient way of sending your data for example through
a wireless network or mobile data. You would hardly manage to reach the data limits of
those networks.
Just saying ... try only to do it over SMS if there really is NO other way of sending it.
Good luck!

Automatically configure Android settings?

At work, we have an Android-based infotainment system that we're constantly deploying new versions to, on a half-dozen different test benches. The deployment script does the moral equivalent of:
for apk in ${apk_files}; do
adb install -r ${apk]
done
After this, we need to manually execute the following steps:
Set the home app to be one of our just-installed applications (Always, not Just Once)
Become a developer, and enable the Stay Awake option
Select the Google TTS engine for text-to-speech functionality rather than Pico
Executing these steps after each deploy is a giant PITA. People often forget one or more steps, and leave the test bench in a non-working state. This results in a bunch of 'bogus' bug reports that waste everbody's time.
Is there some way (using adb, perhaps) that we can automate these steps?

You can disable other home apps with adb shell pm disable .... I don't think there's a command line option to set apps as default. I remember looking into this before and there was a "preferred application" XML file where this was stored. If you want to look into it, the magic happens in PackageManagerService.addPreferredActivityInternal(). Looks like it writes the data to a file on disk: package-restrictions.xml. I suppose it's possible you could figure out the format thereof and write the file (you'd need root).
This is controlled by a system settings, "stay_on_while_plugged_in". You can set it using adb shell settings system put ....
The TTS engine is stored in a secure setting, "tts_default_synth". You can see the value like,
$ adb shell settings get secure tts_default_synth com.svox.pico
com.svox.pico
And you can set it with adb shell settings put secure "tts_default_synth" <the value>.
I noticed that if the value was not been previously set, when you get the value using the settings command you get null and it's not listed in settings list, even though there is a default value. As of Android 6 (I think), settings are no longer in a DB but rather are stored in XML files in /data/system/users/0/settings_*.xml. You can see the values therein.

How to "Restrict Background data" for selected app

I have a list of apps which consume high battery.
when I select one app, I want to "Restrict background data (Settings > Data usage > select app > Restrict background data)" for the selected app.
How Can I do this ?
Same question is asked at below link
Programatically toggle "Restrict Background Data"
And it says it can not be done.

You can run this command in the command line
svc data disable or svc data enable
You obviously need root to do that, like this:
Runtime.getRuntime().exec("echo svc data disable | su");
This should bring up root dialog if your device is rooted.

And it says it can not be done.
There is nothing in the Android SDK for this. Therefore, it is usually assumed to be impossible until proven otherwise. In this case, there is also a security aspect -- one app should not be able to control this setting for other apps, except perhaps on rooted devices.

You may try Reflection.I am not sure of it.

Android BackupRestore example not working on Android 2.3 Nexus One

I've created a sample project using BackupRestore. I went to register for a key at Android Backup Service. I got the following:
Your key is:
AEdPqrEAAAAIW4p30C1GTNjzBOqWrb0clI7_OCWxm3ddIgkKhw
This key is good for the app with the package name:
com.example.android.backuprestore
Provide this key in your AndroidManifest.xml file with the following element,
placed inside the <application> element:
<meta-data android:name="com.google.android.backup.api_key"
android:value="AEdPqrEAAAAIW4p30C1GTNjzBOqWrb0clI7_OCWxm3ddIgkKhw" />
When I launch the app and choose "Bacon" + "Tomato", I can see pending backups using dumpsys backup. So I force run it (bgmr run => pendings disappear) and uninstall the app.
When I restore it, logcat tells me "No restore data available" and of course, the settings aren't displayed with the correct info.
Any ideas what I could be doing wrong ?

When you uninstall the app the backup data got removed. Lookup logs for
BackupManagerService: Removing backed-up knowledge of <app package>
Seems that backup/restore process can vary from manufacturer and device. Testing Backup and Restore document can simple work by uninstalling and installing using a nexus device, but I would not expect the same behavior and consistency on every device.
See also this answer https://stackoverflow.com/a/13648673/1598308

Had the same error, only years later. It's probably because you are using Google Transport instead of LocalTransport. Google imposes a rate limit of 24 hours for every backup, so it's trying to create a backup, but it doesn't, and the restore fails.
Run adb shell bmgr list transports to see the transports.
Run adb shell bmgr transport android/com.android.internal.backup.LocalTransport to change the transport to Local.

Set Data roaming on/off

How could I programmatically set data roaming on/off in my android application ?

Apologies in advance for reopening a dead post but I have managed to achieve it by calling this executable:
su -c settings put global data_roaming0 1
Also to get the roaming setting for first SIM card:
su -c settings get global data_roaming0

If your app is signatureOrSystem/Privileged app (app resides in /system/priv-app) and your have valid android.permission.WRITE_SECURE_SETTINGS permission in system/etc/permissions. Then you can do it as below.
Enable :
Settings.Global.putInt(context.getContentResolver(), Settings.Global.DATA_ROAMING, 1)
Disable :
Settings.Global.putInt(context.getContentResolver(), Settings.Global.DATA_ROAMING, 0)

I hope that it's not possible to turn on data roaming programmatically as this would be a serious security issue from my point of view ...
Data roaming (i.e. UMTS data transfer via a foreign network) may result in a huge bill from your network provider - at least in europe.

If data roaming is currently on, then I think you can manipulate the Access Points Names in order to make it appear that a data service isn't available. See this post which also links to apndroid. You could browse their source and see the approach they have taken.
If data roaming has been set to off by the user, then this approach won't work. Though you could prompt users to turn it on as part of your install/setup process, which is the route apndroid take.
apndroid also provide an API for changing these kind of settings, which might be more convenient than reimplementing the same functionality.

On rooted devices when using su to enable data roaming, on multi sim devices the data roaming setting is sim specific.
So you need to get the sim number that is active for data calls
sim_num = settings get global multi_sim_data_call
and use this in the data_roaming + sim_num setting. EG sim_num 3
settings get global data_roaming3
if this is null then not multi sim device and use data_roaming otherwise use
settings put global data_roaming3

I was able to enable data roaming on my dual sim Motorola G8 without the need to root it via ADB. I'm posting here the procedure, because the phone has a bug that prevents data roaming from being enabled normally.
You need a computer and to install ADB installed
Enable developer mode and USB debugging in your phone
Connect the phone to the computer via USB and accept the debugging connection.
Start an "adb shell", be sure that it is correctly connected to your phone.
Issue the command
settings put global data_roaming1 1
to enable data roaming for SIM card 1, or
settings put global data_roaming2 1
to enable it for SIM 2
Note: if you do not have the USB cable, this can be done via wifi, but the pairing process is a bit complicated and version dependent.
If you do not have a computer, it may be possible to run the commands directly on the phone using a "local adb" app (there are a few on the play store), but I have not tested any.