how to flash Samsung GT-18552 and this method will work on all the devices of Samsung.

hi guys you sometimes you root your mobile and it may starts abnormally because root disable all the security form the phone and your mobile's software may get bricked or any software problems

or it may start Laging while runiing any application or it can have a bad effects on mobile .but  in some cases it is essential or Necessory to root because sometimes we want to install Firmwares or we want to do anything else and we have to root .but for example your mobile get bricked you can read blog about Briked mobiles but it this blog only i will show you how to flash your firmware

this method can be applied on all Samsung devices .every brand has its own method of flash and this method is for all Samsung devices .but here is the condition that you will have to download firmware according to you mobile in my case i have GT-18552 and i have download the firmware for it .and you have to download firmware for your mobile. 

Select country or type in certain info to filter, eg.Baseband version.

After downloading it (normally a compressed file), you need to extact/unzip it to certain location of your PC. The file types that Odin uses are *.bin,*.tar and *.tar.md5.

Find the file you have downloaded and then unzip it to Desktop.

You will find a *.md5 file after extracting.

Step 3: Download and extract Odin on you PC.

You can download Odin V3.10.7 directly from SamMobile. AndroidMTK is a fine alternative, it also offers a detailed list of Odin versions and download link. Or you can always Google "Odin download".    After downloading it on your PC, extract it to Desktop or another location you'd prefer.

Odin v3.10.7 zip file.

After extracting, right-click to "Open as Administrator". It may prevent certain issue from happening.

Run Odin as administartor is recommended.

Step 4: Boot your Samsung device into Download mode.

Follow these steps to enter Download Mode/Odin Mode

1. Power off your device
2. Press and hold Volume Down key, Home Key and Power Key
3. When your device vibrates, release Power key while keep holding the Volume Down key and Home key

Warning before entering into download mode
4. Press Volume Up key to enter Download mode, which has a green robot figure and “Downloading… Do not turn off target!!)

Now you are in download mode.

Step 5: Connect your device to PC.

You device should be automatically recognized by Odin. At the lower-left of Odin interface, it should show a message that says "Added!" and in the meantime you should see a light-blue box at the ID:COM section stating "COM:3" (the number depend on which USB port you have plugged the device cable and is irrelevant).

Device is connected to Odin.

Step 6: Click "PDA" or "AP" to add tar.md5 file that you have extracted and then "Start".

Whether it is "PDA" or "AP" depends on the version of Odin that you used. But the md5 file goes to either "PDA" or "AP".

Add *.md5 to Odin.

After adding the file, click "Start" to begin the flashing process.

Click "Start" to flash.

WARNING DO NOT REMOVE OR OPERATE ON YOUR DEVICE UNTIL FINISHED OR FAILED IS SHOWED ON ODIN.

Ongoing flashing process. Do not remove your device.

When the flashing process is done and if everything goes well, you should see a big green box saying "RESET" or "PASSED" (depends on the version of Odin is used). By now, the device should be rebooted and it is safe to remove/unplug your device.

If failed, what should you do?

Try these things first:

• Update your device driver software to the latest.
• Restart your computer.
• Run Odin as Administrator.
• Try different cable (original one or the one with better quality) and USB port (the main port recommended)
• Re-download the firmware file, make sure it is intact and match your device model
• change the version of your ODIN

if you have any problem while installing or flashing your mobile's firmware you are free to ask in the comment section it will be pleasure for me to help you