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root Samsung Galaxy S 2

If you close odin it should cancel the last operation. Then disconnect phone and hold the power button until it switches off. Then hope you can get back into download mode.
 
If you close odin it should cancel the last operation. Then disconnect phone and hold the power button until it switches off. Then hope you can get back into download mode.
dowload mode works but still not working...how can i get it back as original? :(
 
You can try flashing the stock ROM back with Odin - that may work. Alternatively you could try a hard reset which often fixes boot loop problems.

1. Turn off the phone or take out the battery and reinsert it.
2. Hold the Volume Down button
3. Press and release the Power button
4. Select Clear Storage by pressing the Volume Down button
5. Press and release the Power button
6. Press Volume Up to confirm i9100 master reset
 
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