Samsung Galaxy S2 — Performing a hard reset


PRESS AND HOLD VOLUME UP + Home Button
Samsung i9100 hard reset using buttons
Keep pressing these 2 buttons + press Power button for 2-3 Seconds
Release only power button, but KEEP pressing Volume up + Home Buttons
With Volume down select wipe data/factory reset (3rd) > Press Power
(VOLUME UP + HOME + POWER buttons)
Samsung i9100 hard reset using buttons

OR

Your Samsung Galaxy SII device freezes or has fatal errors

If your device freezes or hangs, you may need to close programs or reset the device to regain functionality.
If your device is frozen and unresponsive, press and hold Samsung GT-i9000 Galaxy S hard reset for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select
Settings → Privacy → Factory data reset → Reset phone → Erase everything.
OR
Use this method to hard reset your Samsung Galaxy S II 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 on your PC before full reset!
OR
1. Turn off the i9100 S 2 phone or take out the battery and reinsert it.
2. Hold the Volume Down button
3. Press and release the Power button
4. Select Clear Storage by pressing the Volume Down button
5. Press and release the Power button
6. Press Volume Up to confirm i9100 master reset
I9100 Download mode when you reflash galaxy s2 firmware, root
Turn off i9100. Press and hold VOLUME Down + HOME + POWER buttons together.

Samsung SGH-i757 Galaxy S II Skyrocket HD LTE hard reset

All data will be lost!
1. Turn the phone off

2. Press and hold VOLUME UP and VOLUME DOWN

3. Press Power until the phone vibrate

4. Wait until you see the Android logo then release all the buttons.

5. Select Wipe data/Factory reset with VOLUME DOWN, press Home under the screen

6. Select YES with VOLUME DOWN and then press Home

7. After format, press Home again to reboot phone.
Samsung i755 Galaxy S2 hard reset
Reset the Galaxy Skyrocket HD LTE i757M device: press and hold the Power/Reset/Lock key for 10-15 seconds.
Reset you Skyrocket HD LTE Your device freezes or has fatal errors
If your device freezes or hangs, you may need to close programs or reset the device to regain functionality. If your
device is frozen and unresponsive, press and hold the Power key for 10-15 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select
Settings → Privacy → Factory data reset → Reset phone → Erase everything.

Select Settings > Privacy > Factory data reset: Reset your settings to the factory default values and delete all your data.
Press Application button, then Settings > Reset settings: Reset your settings to the factory default values.
While using your device, be sure to back up important data. When disposing of your device, back up all data and then reset your device
to prevent misuse of your personal information.
Use this method to hard reset your Samsung Galaxy S2 HD LTE : 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.

Samsung SGH-i757 Galaxy S II Skyrocket HD LTE Android System Recovery

Android System Recovery is used to restore the phone’s system software to the original as-shipped state and delete all user data. It is also used to update the system software. Under normal operating conditions you should never need to perform a system recovery.
Note: If you entered this menu by mistake, use the Volume Up/Down keys to select reboot system now, then press the Power key. Your phone will then continue to boot up.
To enter the Android System Recovery mode, follow these steps:
1. With the phone turned off, press the Power key and Volume Up/Down keys at the same time until the phone switches on.
2. Once the Samsung logo appears, release the Power key while continuing to press the Volume Up/Down keys.
3. Continue to press the Volume Up/Down keys for at least 8 seconds, until Recovery mode is launched and the Android System Recovery screen is displayed.
4. Release the Volume Up/Down keys.
5. The following options are available:
• reboot system now: this option turns on your phone.
• apply update from sdcard: this option allows you to apply updates from your memory card to your phone.
• wipe data/factory reset: deletes all data from the phone except pictures and videos.
• wipe cache partition: allows you to delete all cache data such as log files.
6. Use the Volume Up/Down keys to scroll up or down, then press HOME to make a selection.

Samsung SGH-i757 Galaxy S II Skyrocket HD LTE Safe Mode

You can boot your phone into Safe Mode if you wish to
troubleshoot whether or not added applications are causing
problems with the device. Safe mode will only load basic system
software.
1. Make sure your phone is turned off.
2. Press and hold the power key to boot up your device.
3. After the start-up animation begins to display, rapidly tap the MENU key until the Lock screen displays.
When the Lock screen is displayed, Safe mode is displayed in the lower left corner of the screen.

How To Hard Reset Samsung Galaxy S2 (I9100) with Safety Step?

The popular Samsung Galaxy S2 (I9100) is really easy to use and give good performance to use everyday with top list of review, here is the Samsung Galaxy S2 Android smartphone specification :
LCD 4.3 inchi
Processor Dual-core 1.2 GHz Cortex-A9
Memory Internal 16GB/32GB ROM with 1GB RAM
Camera 8 MP,  autofocus, LED flash
Camera Resolution 3264×2448 pixels
Operating System Android OS, v2.3.4 (Gingerbread), upgradable to v4.1




How to Hard Reset to Factory Default Samsung Galaxy S2 / SII :
# Option one – Hard Reset Samsung Galaxy S2 with Software:
If we still can access the menu, the easy way to hard reset using Setting function by pressing :
Menu > Setting > Privacy > Factory Data Reset > Reset Phone 
This is the way to erase all data on Samsung Galaxy S2, such as Google Account, Contact, SMS, application and it settings. After doing the Reset Phone by Software then Samsung Galaxy S2 will run automatically and process to delete the data back to factory default.

# Option Two – Hard Reset Samsung Galaxy S2 with Hardware Button:
This is the way to Hard Reset Samsung Galaxy S2 back to factory default using  hardware button, this option can be done when we can not access the menu or the Samsung Galaxy S2 can not run properly. This is what we have to do :
  1.  Remove the Battery for 10 seconds
  2. Put The Battery at the position again
  3. Press together and hold: VOLUME UP + HOME BUTTON (press continuously and go to step 4, but remember Do Not Release this step 3 button
  4. Continue with pressing POWER BUTTON about 3 seconds dan release POWER BUTTON after that (when pressing POWER BUTTON, do not release VOLUME UP + HOME BUTTON at step 3)
  5. You will see Recovery menu, Choose WIPE DATA/FACTORY RESET. At this point, to ENTER press POWER BUTTON, to NAVIGATE press VOLUME UP and VOLUME DOWN (depend on what we need). This is the end of step.
  6. Note: For step 3, HOME BUTTON locate in bellow LCD in the middle button.

# Option Three – Hard Reset Samsung Galaxy S2 with Dialer Code:
  1. Turn on Samsung Galaxy S2
  2. with dialpad number, press *2767*3855#
  3. Then the Samsung Galaxy S2 will reset all you data and back to Factory Default

When will We Need to Factory Reset Samsung Galaxy S2 ?
Samsung Galaxy S2 need to be hard reset to factory default when we can not access anything at this phone, or when we feel that the phone become running slow or some unusual problem happen at our Samsung Galaxy S2. Please remember to always backup your data before doing Hard Reset.

What to Do if I forget the security screen lock or PIN or Pattern  for Samsung Galaxy S2 (SGS2)?
In Android default step, if we are forget about security screen lock or pin or pattern, then to unlock it Android will ask for default Gmail account which already installed in that Android, so we just have to enter the username and password. The problem is, sometime some user forget about the password or sometime the Android Samsung Galaxy S2 (SGS2) can not enter the forget pattern security restore. If you get this  problem, then what we can do just do the master reset to factory default Samsung Galaxy S2 for restore the security code, but of course you will loose all data in Samsung Galaxy S2.

How to Make Samsung Galaxy S2 (I9100) Run More Faster?
Samsung Galaxy S2 (I9100) use Android for operating sytem, we can download a lot off applications from Google Play Store, some applications sometime not compatible for Samsung Galaxy S2 (I9100) that can make it run more slowly or not responsive. We recommended for every Samsung Galaxy S2 (I9100) user to download only recommended applications and install only important that you use much. In this case when Samsung Galaxy S2 (I9100) performance become slow, we have to hard reset or master format Samsung Galaxy S2 (I9100). Please remember to always backup your important data because it will wipe or erase from this phone.

How to Reinstall or Restore Samsung Galaxy S2 (I9100) with Clean Android Operating System ?
The default operating system and applications already saved at Samsung Galaxy S2 (I9100) ROM, when we have problem with Samsung Galaxy S2 (I9100), then what we need to do is reformat and reinstall the operating system to restore factory default Samsung Galaxy S2 (I9100). When you do the master format or hard reset Samsung Galaxy S2 (I9100), then the default operating system from ROM will be reinstall in this phone. So the easy way to reinstall Samsung Galaxy S2 (I9100) clean operating system is by doing the hard reset.

Note:
This information have the same meaning : Master Reset Samsung Galaxy S2, Format Samsung Galaxy S2, Restore to Default Samsung Galaxy S2, Full Reset Samsung Galaxy S2, secret number to reset Samsung Galaxy S2, Hard Reset SGS2, Factory Default SGS2, How to Recovery Samsung Galaxy S2, forgot security password
Please becareful before doing the master reset or format Samsung Galaxy S2 to factory default, because all important data in Samsung Galaxy S2 will erase or wipe all, we always suggest to backup you Samsung Galaxy S2 periodically to run away from this problem later.
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How To Hard Reset Samsung I9100 Galaxy S2 Using Its Hardware Keys

When you need to do a hard reset?

You can apply this operation in many cases, We will mention some of them here:
- After installing bad or unsupported application into your Samsung mobile phone which causes your phone to be frozen.
- Your Samsung mobile phone doesn't respond to any order after booting because of some software errors.
- Forgotten pattern lock in Samsung Android mobile phones.
- Forgotten user code.
- Forgotten phone code.
- Before or after installing new firmware updates into your device.

What to do before performing the hard reset?

- In case your Samsung mobile phone can connect to a computer then it is better to make a backup of your saved data using Samsung kies software.
- But in case that is not possible then you can check that your phone's battery has enough charging, Otherwise you should charge it.

Samsung I9100 Galaxy S2 Hard Reset Steps:

- Take out your phone's battery, SIM-card and memory card too.
- After 10 seconds put the battery back into your phone.
- Press and hold Volume Up key + Home key then press Power key.
- Keep pressing the above keys until Samsung logo appears for the second time, Then release all keys.
- You will be into Factory reset menu.
- Use Volume Down key to select Wipe Data / Factory Reset option.
- Use Power key to confirm the operation.
- You need to use the Volume Down key again to select "Yes delete all user data"
- Use Power key to confirm.
- After performing the hard reset, Select Reboot System Now option, And confirm it using Power key.
- Now the phone will reboots, Wait for it to be fully on and then you can start using it.

Notice: The hard reset operation will delete anything that are saved in your phone's internal memory, So make a backup of your data in case you can access them.

Samsung Galaxy S5360 Hard reset

Reset Galaxy Young: Charge your phone fully.
OR Press Volume UP + MIDDLE HOME key + POWER on.
(or Press Volume UP + MENU + POWER on.)
Select wipe data / Factory reset and confirm. All data will be lost!
Samsung Galaxy Y hard reset
If your device has fatal errors or hang-ups, or freezes, you may need to reset the device to regain functionality.
Reset the device: press and hold POWER/Lock button for 8-10 seconds, then release it.
Settings > Location and security > Clear storage: Erase the credential contents from the device and reset the password.

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