Galaxy s gti9000 wont start up past the samsung logo

Check the related article and video. Hope they can really help you.

http://samsung-deleted-data-recovery.blogspot.com/2016/11/how-to-root-samsung-galaxy-s7-and.html

Have you rooted your phone? If yes - then try to use Odin to flash the firmware of your device.
You will loose all your data though...

You need to download Odin for Windows, then download 4.1.1 firmware for your model. If it downloads in .zip files you need to decompress. After decompressing the file you will see a .tr.md5 file, this the firmware itself, this is the one you are going to flash. Also you need to have the drivers for you model device already install, you don't have them yet, install Kies and after installation reboot your computer.
Now, turn off the phone, and to make sure nothing goes wrong let's hard reset the phone first by pressing and holding at the same time the volume up, home and power key, until you see the recovery page. Now choose Wipe data/ factory, press the power key to select, scroll down to yes and press the power key.
Do the same for Wipe Cahe. Once that is done, go back to the recovery main page and select Reboot. Turn off the phone again, this time press Volume down, home and power key at the same time until you see the Android logo, this is the download page. Press the volume up rocker to start the download, open Odin, connect the USB cable to the GS3. Notice at top of Odin different squares, at the bottom of the first square it should display the com you're using, if it doesn't show anything then you need to re-install the drivers for your device.
Once it shows the com number you are ready to go, make sure that Auto Reboot and F. Reset Time are checked, leave the others uncheck. Now click PDA, or in latex versions of Odin is AP, search for the .tar.md5 files that was decompress and choose it. Now click start at the bottom of Odin and wait until it shows Pass. Now you should be in 4.1.1 stock ROM. If you are rooted, this will unroot your phone.

ones your rooting fail...there is no way to recover but to contact your service centre....they have parent driver...there only they will reboot it with factory setting...never try to root device without proper knowledge and with proper driver...coz for different devices rooting method is different

so better not to go further by your own and contavt service centre asap
good luck

At frist turn off your smart tab&then press [(Volume+)+home key] on that time you have to press power key again and again.then you get cwm recovery.then select update from sdcard by using vol - key and click it by using home key.then select your zip file which is dwonload you before for root your phone.
Thank You
-Mitin Sakib

Step 1:

1. The following procedure works for Samsung Galaxy Tab 2 P3113 smartphones.
2. Make sure your device have at least 80% battery power.
3. Make sure USB Debugging is enabled

Step 2:

1. CF-Auto-Root to root P3113UECLK7 firmware [Filename: CF-Auto-Root-espressowifi-espressowifiue-gtp3113.zip]

2. Odin 3.07 [Filename: Odin307.zip]

Step 3:

1. Extract Firmware zip file and you will get a .tar file and some other files.
2. Extract Odin zip file and you will get Odin3 v3.07.exe along with few other files.
3. Switch off your Galaxy Tab 2 P3113
4. Now, put the Galaxy Tab 2 P3113 in Download Mode by pressing and holding the Volume Down key and Power button.
5. Then, a warning message appears, press the Volume Up key to continue.
6. Now run Odin3 v3.07.exe as an Administrator because Admin privileges is required to complete the process smoothly.
7. Now connect your Galaxy Tab 2 P3113 with your PC using USB cable.
8. Then a message will arrive under Odin's message box in the bottom left saying "Added!!"
9. Select these files in Odin at respective tabs from extracted firmware folder:

• Click the PDA Button, and select the CF-Auto-Root-espressowifi-espressowifiue-gtp3113.tar.md5 file.
  

10. In Odin window, make sure Auto Reboot and F. Reset Time checkboxes are selected. Also, make sure that Re-Partition checkbox is selected, only if you are using a .pit file.
11. Double check everything that we mentioned in Step 9 & Step 10 above. Now, once satisfied hit the START button to begin the flashing process.
12. Once flashing completed, you will see a PASS message with green background in the left-most box at the very top of the Odin. The tablet will then automatically rebooted and soon you will see the Samsung logo. You can then unplug the USB cable to disconnect your device from computer.
Congrats! Your Samsung Galaxy Tab 2 P3113 running P3113UECLK7 Android 4.1.1 Jelly Bean firmware is now rooted. You can now install apps that require root permission.

Hope you have bricked your android phone. Now must flash your phone with stock rom. You can do these by using ODIN. Just download ODIN for your phone, download stock rom odin flashable .zip packages for your phone, put your phone in download mode, connect your phone to PC via USB cable, run ODIN , load stock rom packages, flash it..

Well, obviously you've lost your CWM and root. Re-flash the kernel with CWM using Odin. The second thing is that you have used wrong image to flash. I'd suggest to restore old one or re-flash use proper image (include root/CWM)

You shouldn't need to use ODIN to upgrade to an official copy of 2.2. Installed Kies or Kies Mini from Samsung.com in order to upgrade.
If you're trying to install a custom ROM, do so through app "ROM Manager" using Clockwork recovery.
If you STILL insist on using ODIN make sure you have the drivers for your phone installed on your PC. You can get them from Samsung.com. Then open ODIN on your PC. While phone is disconnected from your USB (though USB is connected to PC), turn off you phone. Once off, hold down both the volume up and down buttons and insert the USB cable into the phone (while the buttons are being held down). This will put you into download mode and should make ODIN recognize your phone.