[APP 2.3+] 3C Toolbox (aka Android Tuner)

Dear users,

Considering all 3C apps are now based on the same source code, they all behave the same way, and will exhibit the same issues. Any queries will also likely applies to all apps.

To make my life easier while continuing to provide support here (and start with a clean slate), I decided to close all my app threads and open a fresh new thread here.

With your continuous help and support, the past 4 years have been a great adventure and experience. Let's take a fresh start and continue this amazing adventure.

Thank you all!





*** See at the end of this post on how to get support for any issues ***

The most comprehensive toolbox to save battery, tweak, tune, backup, secure and monitor any Android devices running any ROMs, any kernels.

What is 3C Toolbox

Replaces 20+ apps easily worth 30€ for the price of a couple of beers!

NB: Starting with version 1.0.3, Android 2.2.x and 2.1.x are no longer supported. App supports Android 2.3 and above, including Android L preview.


Safest root app on Play Store: I run the app and all its features on at least 4 devices every day, and change 3 of them frequently for testing purposes. With about 250.000+ actual users, it's pretty safe to assume the app is very safe. App can create a reset package to disable all system tweak features from CWM/TWRP at any time. App has automatic fallback in case of boot loops while re-configuring the CPU.

See signature for download links.

☺ App Features

☺ 3C Apps Feature Comparison

☺ More app screenshots

☺ Low CPU consumption, please check benchmarks

☺ Get started guide

☺ Online help


♦♦ Unique features not available elsewhere ♦♦

◊ Track your ROM, kernel and battery performance (%/h or mA, screen on or standby)
◊ Battery milli-amp (mA), mW and %/h consumption reporting
◊ Automatic backup of installed and updated applications
◊ Highly configurable graphical monitoring widgets
◊ Advanced script editor

♦♦ Unique features not available elsewhere (root required) ♦♦

◊ Clean and safe reboots, without data loss
◊ Turn on/off APN, BT discovery, tethering, GPS & WiFi Localization
◊ Logcat reader for Android JellyBean 4.1.x
◊ Easiest Link2SD / App2SD capabilities ever


◊ More about permissions requested



◊ Issues with CPU temperature or battery current mA or capacity mAh?

Please explain this in a support request from app settings, help and support so we can provide the appropriate option to use in 'mA retrieval method' of battery / monitoring settings and add out-of-the-box support for your device. All necessary information is provided in the request's attachments.


◊ How to get support for any other issues

Please send a support request from app settings, help and support. You need to clearly explain your issue, attach any relevant screenshots showing where and how the issue occurs. I will not provide any support here.

All I ask is to provide reasonable details for me to be able to help, empty requests are mostly trashed, I keep one requests per device for the sake of a possible source of information for how the app supports things, to possibly fix things too or compare between variants of the same device.

For example a support request contain the following (you can check the content before sending it!),
all discovered SD cards, very useful for any related issues, including the mentioned read cache stuff.
app installation path and configuration, for xposed, battery, cpu, tweaks, apps or task managers problems.
battery history and configuration for any battery problems.
CPU configuration for CPU problems, including thermal, mp, voltage, etc

The idea is that you explain the observed issue, possibly add a screenshot so that I know exactly where to look for (app has 100+ screens and sometimes words don't mean the same for you and me), and there I can really do a good job at helping you.

PS: And so you know, I hate liars, insults, disrespect and myself. So please try to avoid those when requesting support.

Actually if you want support, posting the whole support request content, the screenshot and details here should be ok. Doing otherwise, I'll either ignore you completely or send you elsewhere very quickly, you want to leave me a one star rating, so be it: developing is my passion and I love it, you want my help, do it the right way or don't at all. I don't develop for stars, I develop for fun.

DJxSpeedy said:

Attention !!!! Installs an apk to /system/ dosnt know what it does !!! Apk is there when uninstalled too !!!!

Click to expand...

Click to collapse

I've updated the first post with more information about that. Will publish an updated APK to ask user permission before installing it within the next hour.

EDIT: Didn't expected you guys to be so quick while I finalize the publishing of all required information.

By the way, the uninstall process can't uninstall other stuff, but as a rooted device, you should have no problem getting rid of this APK.
Please try the new APK published a minute ago (available in a couple of hours) that will allow you to refuse the APK installation.

dirtyreturn said:

Will the users of BMW pro and system tuner pro get a discount or count this as an upgrade?

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Click to collapse

Yes, just contact me with the order lists (bmw, system tuner and the new android tuner) and I'll refund old apps. This is the migration plan I'm working on.


EDIT: As of December 20th, 2013, direct refunds on Play Store are no longer possible. This was the only available way to offer discounts in a decent way. PayPal was an alternative available until February 2014, but it was abandonned because of the complexity, 30+% extra fees and the lack of global support (some countries could not receive refunds).

viking37 said:

Hi 3c,

Not a bad idea to make an "all in one", just need to see about memory, battery and CPU usage... but I am pretty confident about that

No more update for System Tuner pro?

In all cases I buy it! (although slightly damage the impressive increase in the price ).

Thanks and congratulations for your new app

Click to expand...

Click to collapse

Yes, high price for now to avoid users who just try any apps and put comments after a few minutes of testing. And also to be able to offer discounts by refunding old apps paid version.

Nevertheless there will be updates on existing apps (not everyone wants an all in one app) with existing improvements, except features that require additional permissions.

NicholasQ said:

Do you think youll ever add ability to spoof app permissions? And let user input the value... This would be an ultimate feature!

Sent from my Nexus 7 using xda premium

Click to expand...

Click to collapse

I'm looking into this actually, along with a smart "renicer", but both requires hacking Android or every APK to monitor and it turns out to be very complex.

There's 3 existing solutions on Market today:
- Hacking of Android class loader, as done by LBE Security app.
- Hacking of APK installed, as done by SRT Guard
- Patching the ROM like PDroid does.

They all have their advantages and problems, but the APK hacking seems the best option to go for as it results in a more stable experience, not as dependent on Android version as the 2 others and probably less disruptive as LBE can be when it messes up one's device. But then I'm not sure an APK can actually be installed properly

That said, I'm still looking into the first solution hacking app loading directly.

DJxSpeedy said:

We are Quick we are fast...we are xda !

Click to expand...

Click to collapse

Not at removing bad comment on Market though

So i take it you find this app extremely bad to rate it one star, right?

DJxSpeedy said:

yes iam that i dosnt have it installed atm.. but one is good that you are here.. i have another bug for you

why does it make an backup of build.prop when i change nothing at it ?

Click to expand...

Click to collapse

So far you didn't find any bugs.

DJxSpeedy said:

changed my play store entry about it

Click to expand...

Click to collapse

Thanks, appreciated. I'm sure your new entry will be more useful to new users.

So I still hope you can enjoy my new app and report any of your findings, directly here or best is using the 'support request' from the app settings, it provides a lot of useful information for debugging

dirtyreturn said:

Is this [really] compatible with gingerbread? It lags, 'freezes' on screen and I have to long click the home button. I am using a sensation 4g 2.3.4. I'll get a logcat if you will find that that will help.

Click to expand...

Click to collapse

Yes it is compatible. When did it lag? After requesting to install the system app or at some other times?

When lagging, the OS usually creates a file in /data/anr/traces.txt. If you experience a new lag, you can send it to me, possibly using the support request feature in the app settings. You can then attach a file to the newly created email.

When it comes to lags (or ANRs for that matter), logcat is useless. It only mentions a reference to the traces.txt file

dirtyreturn said:

To me (if I'm wrong it's all user error) the system apk it was requesting to install (it appeared to me) was for ics/jb, so I refused the install. Your app kept requesting to install the extras. After a little thought - is the extra apk mandatory? No intention to cause any concern if what I'm experiencing is nonsense. I have not rated your app on the play store.
It lagged randomly.

Click to expand...

Click to collapse

The extra APK is now only for specific toggles as I manage to find a different work around for the JB logcat issue. Those toggles include the APN (mobile data), background data (this one's obsolete), debug mode, unknown sources, gps and wifi localization. The 1 useful toggles is for GPS though.

Until you press 'do not ask again', the app would continue to request the APK installation ;(


As for the lags you're experiencing that seems like a bug. Have you found any trace.txt in /data/anr directory by any chance?


It's just fair to be concerned with things like that, I can understand. But installing an app requesting 35 permissions, then granting root access to that app and then being scared about a 40Kb APK being installed on /system folder is quite funny actually.

If I may make this comparison, it's like letting a heavily armed man (the 35 permissions+root) in your home and then being worried being he is hiding a wallet (the 40Kb apk) in your home!


Anyway, bad comments always call for improvements