How to Remove a Default or Core System Apps from an Android Phone

1. Root your Android Smart Phone -

You can search Google for how to root your phone; include brand and model in your search terms. Beware of "bricking" your device by yourself. If there is any mistake made during the rooting process then you may brick your device and it may not turn on after the damage, so beware of that; do everything thoughtfully and carefully.

2. Install the Uninstaller from Google Play store -

After the rooting process just reboot your phone and install this app from Google Play store: Root App Delete, or open this link in your android phone to install via your android Internet browser -

https://play.google.com/store/apps/details?id=zsj.android.uninstall&hl=en

but also check whether the app is compatible with your device or not, if it is not compatible then try some other apps for root uninstalling.

3. Open the app and do the needful -

When you open the app, it will ask for "SUPER-USER" permission which you should allow, or it will, in some cases or phones, automatically switch to "SUPER-USER" mode. It will be displayed in your device, "The app has been granted super-user permission" every time you open the app.

4. Uninstall any app now -

Open the Uninstaller app and locate the non-useful app by its .apk extension. For example if you want to delete Google maps then scroll to google maps.apk and uninstall it. MAKE SURE that you are deleting the apps which you know you will never need. Deleting other useful apps may cause your android to not work properly. So be very careful with this.

5. Now just Tune-Up your Android phone a little -

Reboot your phone to open the recovery mode. You can search for your device recovery mode in Internet. You can use Clockwork Mod Recovery or your own default recovery by your device. So go to the recovery and do the 'Wipe Cache Partition' process after that navigate to 'Advanced' Then do the 'Wipe Dalvik Cache' Process and then Reboot your Phone.