[Galaxy Tab 3 Q&A, Help & Troubleshooting] pezaseval:
I recently found my old tablet and it had kingoroot installed and then I flashed stock rom to my tablet but now it randomly restarts and every time i try to setup it i got error "Unfortunately, the process com.android.systemui has stopped" and "settings has stopped"

Here is the tutorial I followed:

The following instructions are for Windows only. Please don't use a virtual machine as these can cause problems communicating with the device. There is an alternative method for Linux or macOS. Just tell me if you aren't on Windows, I can easily change the instructions. Please make sure you have Windows set to display all file extensions. This can really help for debugging purposes.

First we need to download the tool that downloads the stock firmware. It's called SamFirm and it downloads it using Samsung's servers. You can download the latest version [here](http://xdaforums.com/attachment.php?attachmentid=3803841&d=1467715462). Please also make sure you have the [Microsoft Visual C++ 2008](https://download.microsoft.com/download/1/1/1/1116b75a-9ec3-481a-a3c8-1777b5381140/vcredist_x86.exe) and [Microsoft Visual C++ 2010](https://download.microsoft.com/download/5/B/C/5BC5DBB3-652D-4DCE-B14A-475AB85EEF6E/vcredist_x86.exe) x86 Redistributable packages installed. Now to download the tool that flashes to the devices different partitions. On most devices you use a tool called fastboot, but Samsung devices aren't like most devices (excluding the Galaxy Nexus). This tool is called Odin, it's Windows only and leaked from Samsung so you need to get it from a trusted source. You can download the latest version [here](https://build.nethunter.com/samsung-tools/Odin_3.12.3.zip). Extract the "Odin_3.12.3.zip" file. You should now have a folder called "Odin_3.12.3". Treat this as your working directory and download all other files to this folder. While you're here, extract the contents of "SamFirm_v0.3.6.zip" into this folder.

Now to download the stock firmware. Open "SamFirm.exe" and make sure "Auto" is checked and "Manual" and "Binary Nature" isn't checked. In "Model" put `SM-T210` and in "Region" put `BTU`. Click "Check Update" and wait for it to find the firmware on the server. Now check "Check CRC32" and "Decrypt automatically". Then click "Download" and save it. Let it finish downloading, checking, and decrypting. Once it finishes you can now close SamFirm. Extract the zip file it gave you. You should now have a single file ending in `.tar.md5` (you may also have `.dll` file, ignore it). This tar.md5 file is your firmware. Do not modify it. If you have more than one .tar.md5 file, tell me.

Now shutdown the device and then hold the Volume Down, Home/Bixby, and Power buttons. This should put the device into download mode. Accept any warnings then plug the device in. Open "Odin.exe" from the "Odin_3.12.3" folder. In the log, it should say `Added!` and have a blue COM thing near the top, meaning it detected your device. If it didn't detect it, then you may need to configure drivers (you can ask me for the drivers if you need them). Click the "Option" tab and make sure "F. Reset Time" and "Auto Reboot" is enabled. Also check the checkbox next to the "AP" button and then click the button. Select the tar.md5 file. Now click "Start" in Odin.

It should now reboot and go to the boot animation. If it doesn't boot in 15 minutes, shutdown the device. Then hold the Volume Up, Home/Bixby, and Power buttons. Then use the keys to select "Factory reset". Please note this will wipe all user data. Once it finishes you can select "Reboot" and now it should boot correctly.

I have been battling with this problem so long I only wanted to root my tablet to have some fun with root required apps

Any help with the problem? I only need to root the device or get it to work with stock rom