[Galaxy S II General] kaizer216:
I WON'T TAKE ANY RESPONSIBILITY IF YOU BRICKED YOU PHONE. DO AT YOUR OWN RISK

Tested ONLY on M250S/K

HOW TO CONVERT YOUR PHONE TO I9100

Follow these instructions carefully:

1. Download Odin and extract(look for attachment)

2. Download an ICS rom from http://goo.gl/n6u3

3. Open Odin(run as administrator if using win7 or vista)

4. Fill up only the PDA with the rom you got from sam firmware

5. Fill the PIT using the I9100 pit from the attachment(check if re-partition is ticked)

6. Reboot your phone to download mode by pressing [Power+Voldown+home button at the same time]

7. Connect your phone to pc then check if Odin recognized the device(there should be a yellow signal). Something like 0:[COM3}

It should look like this:

8. Hit start and pray for luck

9. Enjoy! (if you are experiencing some problems, just do a factory reset of your phone )

10. In case you want to revert back to m250, just do the same as above but changing the PDA with a korean rom and the m250k pit given from the attachment.

NOTE:If you are experiencing any problems, do a full wipe or factory reset. I recommend doing this because you're converting your phone into a different phone :D

LOCKSCREEN AND POWER BUTTON ISSUES(Need to be Rooted):

For lockscreen and power options you can solve this prob by folllowing this

1. Using a root browser navigate to /efs/imei

2. Create file "keystr"

3. Open it as text and write "ON"

4. Set permissions to rwx rwx rwx

5. Reboot

Originally posted by Memorycontroller. Cheers to him :D

If you are not yet rooted, read the next steps

CONS:

1. Gyroscope not working or buggy(for others it is but for me it's fine. I can play asphalt with no difficulties)

2. Weak Vibration

3. Weak mobile signal or connection. Look for a diffirent modems. Try the one I attached at this post I9100_radio NELP2. Flash it using CWM. I'm currently using it and I don't experience any difficulties in mobile connection except of course if I'm on the comfort room or in mountains. LOL

4. No NFC capabalities (there's a fix for it; search for in the forums)

PROS:

1. You can now be at ease at the removal of the irritating 80sms character limitation

2. Your phone is the same as the international I9100. It basically does almost the same.

3. You can flash all I9100 roms and kernels(do at your own risk)

4. No Korean bloatware apps. Like t-map,t-store and the like

5. Rooting is a walk in the park.(easier and has more support)

If you can add more pros and cons, please leave a comment :D

ROOTING YOUR PHONE(I9100)

1. Download kernels like Siyah kernel or CF Kernel. If you use the CF-Kernel, be sure that the kernel you download is compatible with the firmware you are currently using. Link for Siyah http://goo.gl/RVSp4 Link for CF-root http://goo.gl/ehSbJ

2. Now go into download mode by pressing [Power+Voldown+home button at the same time]

3. Connect your phone through a usb cable to your pc.

4. Run ODIN(run as admin if using win7 or vista). Odin should read your device if there is a yellow signal on the upper right

5. It should look something like this: DO NOT TICK THE REPARTION

6. Now hit start and pray for luck :D

7. To check if you are successful, look for a supersu icon(the app with a pirate android) or just download the root checker in the play store.

8. Enjoy :D

NOTE: Flashing a custom kernel or rooting the device will result into a yellow warning sign when you boot your phone. This means you have flashed a kernel that is not officially made by samsung. Meaning you have void your warranty. I warn you.

ROOTING YOUR PHONE(SHW-M250*

1. Go download a pre-rooted firmware at http://goo.gl/yDrx3. Use google chrome to translate the page to Enligsh. Look for the (routing version). Be sure to download the correct firmware for your carrier. If you're using SHW-M250S, download SKT and KT if SHW-m250K.

2. Now go into download mode by pressing [Power+Voldown+home button at the same time]

3. Connect your phone through a usb cable to your pc

4. Run ODIN(run as admin if using win7 or vista). Check for the successful connection of ODIN to your phone buy checking the yellow SIGNAL at the upper right corner. Something like 0:[COM3}

5. It should look something like this:

6. Hit start

7. If successful, there should be an app that looks like an ndroid pirate. Click the first choice for root, Second for un-root, Third choice for restart. :D

8. Enjoy

REVERTING BACK TO SHW-m250* FROM AN I9100

1. Download the firmware from http://goo.gl/yDrx3. Be sure to download the correct firmware for you phone. SK for M250, and KT For M250K. Either choose the rooting version or the normal one.

2. Download the pit attached from this post. Use the m250k_pit(can work on both m250k and m250s)

3. Go to download mode by pressing [Power+Voldown+home button at the same time] then click the Vol up to confirm to go to download mode. There should be big Android in the center of the screen.

4. Run ODIN(run as admin if using win7 or vista) then connect your phone to you pc through a usb cable.

5. Fill up the PDA using the Firmware you got. Fill up the pit using the m250k_pit I provided in the attached file.

6. It should look something like this:

7. Hit start and pray for luck

8. Rebooting would take quite some time. Enjoy :D