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. Choose Erase 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 together Power Button + Volume Up Button
  5. If we see the menu at LCD screen, choose Wipe Data/Factory Reset with Volume Button to select and use Power Button to 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.

 

Latest hard-reset.org Discussions & Share Information:

[Q] Hi When I switch onn my core it starts twinkling light. How tp get rid of this?
[A] Hi, please try to do hard reset using hardware button combination key like steps at #option 2 to reformat your Samsung Galaxy Core 2 operating system to factory default.
 

[Q] my mobile have problem with side switch off button it can't work I tried to fix that problem to mobile repairing store but it can't get succeed. my mobile is swich off ....and when I try for charging it shows blue triangle with cross on battery symbol...so plz give me suggestions on mobile
[A] Hi, it seems that your phone hardware get trouble. Please repair at Samsung authorized service center.
 

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