How to Easily Master Format SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) with Safety Hard Reset?

Tips and solutions for solving SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) problems. Some users would like to have 4.5 inches LCD screen smartphone for easier to navigate with touch screen, now Samsung already release SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) with 4.5 inches screen and Quad Core 1.2 Ghz using 768 MB RAM. Having more RAM is recommended for doing more multitasking activity, and Samsung Galaxy Core 2 users will love to have 768 MB RAM. This smartphone also have 5 megapixel camera include LED flash for helping taking better pictures at low light situations. There are 2 kind of simcard slot, single sim card and also dual sim card which usually call Samsung Galaxy Core 2 Duos.

What is Advantage of SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) Specifications:

GSM 3G HSDPA (Dual Simcard slot for SAMSUNG GALAXY CORE 2 DUAL)
LCD 4.5 inches
Internal memory 4GB
RAM 768 MB
External memory microSD, up to 64 GB
Main Camera 5 MP, 2592 х 1944 pixels, autofocus, LED flash
Processor Quad-core 1.2 GHz
Operating system Android OS, v4.4.2 (KitKat)
Battery Li-Ion 2000 mAh

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) hang or not responding or malfunctions or stuck or freezing or bricked ?

This smartphone have 4 GB internal memory and can be add more with external memory maximum 64GB. Using 4GB internal memory basically is average amount, not to much but not to small either. By default SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) already include with Samsung applications and some other more, but like other Android smartphone, we can install more applications from Google Play Store as well. But we have to know that some applications at Google Play Store may not really compatible with our SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H), then it can make our phone become trouble like hang or stuck or bricks or broken or freeze or boot loop at Samsung logo or LCD touch screen not responding. If this conditions happen to our phone, then we should try to do soft reset or do shutting-down or reboot or restart to remove temporary files or cache that can make trouble. If the problem still happen then we should have to do hard reset or master format, but we should carefully because doing hard reset will remove or wipe any important data and installed applications, therefore we suggest to do backup all data before doing hard reset.

How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) ?

If our SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) become trouble like stuck or bricks or freeze in the middle of running applications, then we should have to force shutdown or force soft reset or reboot or restart to clean temporary files which can cause the phone become trouble. The easy way to do soft reset can be done by unplug the battery after remove the back cover case at SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H), wait about 5 seconds and we can insert again the battery at the right positions. After that we can press POWER button to turn it on again. Doing soft reset or reboot or restart will not impact anything to our important data, that’s why we can do soft reset or reboot anytime we want. At normal situations, we can doing soft reset by press and hold POWER button until the pop-up menu appear, then choose Reboot / Restart to finish the soft reset process.

#Option 1, How to Hard Reset SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) with software menu:

  1. Turn on SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H)
  2. Make sure SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) battery already charge properly
  3. Go to menu:Setting >General tab> Backup & Reset > Factory data reset > Reset device
  4. ChooseErase Everything
  5. SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) will do the process to Master Reset to Factory Default

#Option 2, How to Hard Reset SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) charge properly
  2. Turn off SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H)
  3. Press and hold together :Power Button + Volume Up + Home Button
  4. If the button at number 3 not work, we can try with press and hold togetherPower Button + Volume Up Button
  5. If we see the menu at LCD screen, chooseWipe Data/Factory ResetwithVolume Buttonto select and usePower Buttonto ok or enter.
  6. The SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) will doing the process of restoring to factory default.

How to Restore and Reinstall Clean Android Operating system / firmware at SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) ?

Some situations can make our operating system or firmware become damage. There are no special characteristic to determine our operating system broken, but usually our SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) become act strange or can not work properly. First, we should know that the file source of clean factory default Android operating system or firmware already saved inside SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) ROM, so we do not need to copy or connect our phone to other device or gadget. The reinstall can be perform easily by doing hard reset or master format process above. Performing hard reset or master format the SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) will be reinstall clean factory default operating system automatically. All data will and all installed applications will be remove and will back to factory default Samsung Galaxy Core 2 applications.

How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) forgot password code or security lock screen pattern or pin (lost password)?

There are some options to give more security protections at our SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H), and we are recommended to use screen lock pattern which is more easy and faster to use. Some users still like to use password pin protection or any other options that also available at SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) security setting menu. The problem happen when we forget the answer of our security protections. But unfortunately Google already have some options to bypass or unlock forgot security protections by using Google account or Gmail username and password. Please try to give several time wrong answer continuously until the phone freeze for about 30 seconds, at this time we will find Forgot Password / Pattern button, press this button to unlock forgotten security protection using Gmail account that already saved inside this phone. There are also Backup PIN which is asking when the first time we give security protections, this Backup PIN at SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) will unlock the forgotten security protections as well. If we can not access the Backup PIN protection or can not connect to Google account, then we have to do hard reset or master format with hardware button.

How to Improve Performance SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) to make run more faster?

If we see the specification at SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) already use Quad Core 1.2Ghz which already fast enough to do activity. But some users maybe get trouble with the speed that their SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) become slowly. The problem usually happen because there are too many applications run in the background. The common situations, users install or download some applications from Google Play Store, some of that applications sometime will keep run in the background without any notification, because it wait for some command or need to update data from Internet. Every applications need some amount of RAM and processor resources, if there are too many applications run in the background, then it will make the resource become low and will make the phone slowdown. Please try to remove some not use applications, or we if we want to make SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) performance back to faster again like new, then we need to consider doing hard reset or master format.

Is That Any Secret Code for Doing Format SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) is*2767*3855#.But please remember to always be careful typing that code, because the SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) will doing hard reset and remove all data and installed applications.

How to Make SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) Battery Work More Strongger, Not Fast To Drain ?

First you have to make sure that LCD brightness is not too bright, because more bright we use at LCD, then it will consume more battery power. You may also try to disable auto brightness and set as low as possible which still fit to our situations. Especially when we want to use more longer for watch movie or playing games. We also have to disable all not use connections like GPS or Bluetooth or Wifi. SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) have GPS battery saving mode options when we want to reduce battery usage for specific applications.

119 thoughts on “How to Easily Master Format SAMSUNG GALAXY CORE 2 & CORE II DUAL (SM-G355H) with Safety Hard Reset?”

  1. my Core 2 G355H started showing errors at starting. was not getting into Hard Reset Mode hence flashed firmware using Odin. after that it struck at boot loop. when trying to Hard Reset it shows Samsung logo n then Screen turns White. please help. (Service Center is unable to repair it).

    Reply
    • Hi, it seems that you have troubles when flash your Samsung Galaxy Core 2 using Odin software. Therefore, doing hard reset with standard procedure will not work. The only solutions is trying to re-flash again using proper software, better to bring it to Samsung authorized service center for reflash using correct firmware and software.

      Reply
  2. Hi, i have puted 4gb external memory but the devicev is showing 50.64gb and sometimes 1.4 tb and the wifi and data are turning onn by itself , and 2 unknown apps got istalled which is funtioning as device administrator , which i have tried a lot to deactvate but not succeded, please tell me the reason if possible solution also, i think i have got hacked or some viruses has atacked my old phone

    Reply
    • Hi, it seems that your phone has been compromised by viruses or malware. At this situations we suggest to do hard reset either using menu setting or using hardware button combination key like steps at #Option 2 above. Both steps will make your Samsung Galaxy Core 2 operating system reformat to factory default. As far as your phone use default official operating system or firmware, then all problems will be recover or fix after you have done hard reset or master format. But please note, all data may be wipe or removed after you finish hard reset, therefore we suggest to backup all important data to safe locations.

      Reply
  3. i have a problem with my sumsung galaxy core || when i try to restart it…if i do that it will be restart until i removed the battrey i hv tried to format it so what can i do to solve this issue?

    Reply
    • Hi, usually after finish doing hard reset, it will reinstall the operating system to factory default, and some problems also will be solve if it is causes by operating system. However, it you have done but the problems still happen, then please try to consult with Samsung authorized service center. Maybe the problems comes from hardware.

      Reply
  4. why my galxy core 2 shows only samsung galaxy core 2 and doesnt open and i used samsiung kies to update but it shows error massege and it doesnt open

    Reply
    • Hi, maybe you should try to do hard reset first using hardware button combination key to reformat your Samsung Galaxy Core 2 operating system to factory default. Hopefully your OS file source still can access while performing hard reset. If still can not work, then maybe the file source is corrupt. You have to use computer and ODIN, but this is not for everyone. You should try to ask help from Samsung authorized service center for better flash correct OS.

      Reply
  5. sir my problem is my phone can’t boot after fail update and i’m stuck in the fail update (my phone is root)

    Reply
    • Hi, unfortunately we can not give good answer for rooted smartphone, because there are many non standard troubles may happen at your rooted Samsung Galaxy Core 2. Please bring your phone to Samsung authorized service center.

      Reply
  6. hi my samsung core 2 suddenly stopped working all it shows after starting is samsung logo i tried to hard reset it still not working and even its not detecting when connected to laptop or computer when connected through data cable.

    Reply
    • Hi, usually if your Samsung Galaxy Core 2 still on standard conditions with no root, then the steps to hard reset using hardware button combination key at #option 2 above will work for your phone. But if the problems still happen, then please consult with Samsung authorized service center.

      Reply
    • Hi, first, you have to make sure your Samsung Galaxy Core 2 does not get any troubles with battery, because usually the battery life time will work about 2 years, after that it will broken and need to replace with new one. However, if you are sure that battery does not get any troubles, then please try to do hard reset using hardware button combination key to reformat your Samsung Galaxy Core 2 to factory default.

      Reply
  7. my Samsung Galaxy Core II Duos is in trouble since Monday, August 28, 2017. It says that the process com.android.phone has stopped and so on..
    what shall I do?

    Reply
    • Hi, at this situations, better you do hard reset using hardware button combination key like steps at #option 2 above to reformat your Samsung Galaxy Core 2 using hardware button combination key.

      Reply
    • Hi, unfortunately we can not give good answer for custom tweak of your Samsung Galaxy Core 2. Because there will be some not standard possibilities that can make your phone got troubles. Please find nearest Samsung service center and ask them to flash with proper Android operating system.

      Reply
  8. I have samsung core 2 every thing is good but i can update softwear neather i get notification of that what is the problm.plz suggest me how i can update my samsung core 2
    9906469138plz sms my no i m worry about it

    Reply
    • Hi, usually the firmware upgrade will be force base by country region. Therefore some country get firmware update but some country still wait. For best resources, we suggest to bring your Samsung Galaxy Core 2 to Samsung authorized service center for get latest firmware update and the staff will flash directly without OTA (over the air).

      Reply

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