Your Samsung Galaxy SII device freezes or has fatal errors
If your device freezes or hangs, you may need to close programs or reset the device to regain functionality.
If your device is frozen and unresponsive, press and hold
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for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select
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OR
Use this method to hard reset your Samsung Galaxy S II phone: Enter
*2767*3855#. Warning! All your data including contacts, messages etc.
will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM
or make backup on your PC before full reset!
OR
1. Turn off the i9100 S 2 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
I9100 Download mode when you reflash galaxy s2 firmware, root
