How to hard reset your samsung s7 or s7 edge

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Reset LG G2x P999 to Restore Factory Default Settings
How to hard reset (factory reset) the LG G2x P999?
There are two different ways you can reset your LG G2x P999 to its factory default settings, via settings menu and using phone buttons. WARNING!!! If a factory reset (hard reset) is performed, all installed application and user data such as messages, phone contacts, image, video and audio files will be erased. Please remember to back up any important data before performing a factory reset.
Reset LG G2x P999 using Settings Menu

1. From the Home screen, press the Menu Key .
2. Touch Settings > Privacy > Factory data reset.
3. Read the warning and touch Reset phone.
4. Touch Erase everything.

Reset LG G2x P999 using Phone Buttons

1. Turn the power off.
2. Press and hold the following keys at the same time for 15 seconds: Home Key+ Power Key + Down Volume Key.
3. When the LG logo is displayed, release the keys. The phone will turn on and
   perform a factory reset immediately.

Resetting the phone does not erase any system software updates you have downloaded or any files on your microSD card.

Samsung T499 Dart Android hard reset

1. Turn off Samsung Dart. Press and hold Volume up key + POWER on the
phone. Reset

2. When the Android System Recovery screen appears, release the keys.

3. Using the volume keys, scroll down to Wipe Data / Factory Reset.

4. Press the Power key to confirm.

5. With Volume select Yes -- delete all user. Press the Power key to
confirm.
After master reset select Reboot System Now. Press the Power key to confirm.

6. Your T-mobile Samsung Dart phone reseted to the factory default state.

(This should work but if not, try both volume + power)

Samsung T-mobile Dart reset

A Samsung T499 master reset restores the original factory settings and
may erase all downloaded content, including ringtones, images, programs,
and contacts stored in the internal memory. It does not erase data
stored on the SIM card or memory card (if available).

To perform a hard reset, follow these steps.


Samsung Dart T499 Factory Data Reset

From this menu you can reset your phone and sound settings to the
factory default settings.
1. Press Samsung Dart T499 reset - Samsung Dart T499 reset and then tap
Samsung Dart T499 reset settings key (Settings) - Privacy.
2. Tap Factory data reset. This action erases all data from your phone
except current system
software and bundled applications, or SD card files such as music or photos.
3. Tap Reset phone - Erase everything.

Samsung Dart Password code try 1234

or

Use this method to hard reset your Samsung Dart Android phone: Enter
*2767*3855#. Warning! All your data including contacts, messages etc.
will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM
or make backup to your PC before full reset! Take out SIM card before
full reset.