Every time I open my galaxy tab. I can not access to my home screen' something pops up saying. the application Samsung Home (process com.sec.android.app.twlauncher). has stop unexpectedly. Please try again. what shoul i do?

Method 1: From Startup (Tab 4)

1. With the device off, press and hold the "Volume Up", "Home", and "Power" buttons.
2. Release the buttons when you see the recovery screen and the Samsung logo.
3. Use the volume buttons to navigate the menu and select "wipe data / factory reset". ...
4. On the next screen, press "Volume Up" to continue.

Keypad Method

1. Navigate to the desired screen.
2. At the same time, press and hold the Power key and the Home key.
3. When the white border appears around the edge of the screen, release the keys. The screenshot has been captured.
4. Screenshots are saved in the Gallery application inside the Screenshots album.

Screenshot: Samsung Galaxy Tab 4 ' T-Mobile Support

https://support.t-mobile.com/docs/DOC-11595 T?Mobile US, Inc.
Feedback

How do I Take Screenshots on my Samsung Galaxy Tab 4 ...

Just press the back button at the bottom left of the Tab to exit the app.

you can also manage the open Application by Opening the Task Manager (Keep pressing the HOME Button > Task Manager > End All Apps)

To Clear the Memory = hold Home button for 2 Seconds > RAM > Clear Memory

1. With the device off, press and hold Volume Up and Power.
2. Release the Power button when you see the Samsung logo, but continue to hold Volume Up until the recovery screen appears.
3. Use the Volume buttons to navigate the menu and select wipe data / factory reset. Press Home to choose the selection.
4. Press Volume Up continue.
The Galaxy Tab should then go through the hard reset process.
If you have access to the OS, you can also perform a hard reset in Settings.
1. Open the Settings app.
2. Select Privacy.
3. Choose Factory data reset

No Operating System. Install the OS new and fresh

Samsung Galaxy Tab Cookies on/off
1.From a home screen, select Applications.
2.Select Browser.
3.Press the Menu button.
4.Select Settings.From the Privacy settings section, select Accept cookies to enable / disable.
5.Enabled when a green check mark is present.

To copy contacts from sim to phone on Samsung Galaxy S Tab:

1. On HOME SCREEN, tap Applications
2. Tap Contacts
3. Press and choose Import/Export
4. Select Import from SIM card
5. Press and tap Copy to phone
6. Tap Select all
7. You're DONE!

do one thing Turn Off Your Tablet
-> Hold Volume Button and Power button for 3 to 5 Secs -> You will see a screen with android and triangle with exclamation mark -> you will also see 4 lines of writing in blue. -> use volume buttons to navigate to 3rd option, use home to select it ( warning this will erase your system data if need please take backup) (memory card is not affected) -> now navigate to 1st option saying " reboot to system" use home key to select it.
I hope this will fix things

Hey there,
In order ot hard reset your Samsung Galaxy Tab you need to perform the following steps: Be aware that this will erase everything!
1. Turn the device off 2. while the device is turned off press and hold the volume up button and the power button 3. release the power button when you see the samsung logo appear. (Do not let go of the volume up button until you see the recovery screen) 4. use the volume button to naviagte through the menu until you find an option titled Wipe data / Factory reset 5. once you fin that option, highlight it and press the home button. 6. press the volume up button to continue
Your galaxy tab will now start the hard reset process, do not touch anything until it is complete
Hope this helps!!