I have a Samsung Galaxy S2. I factory-reset my phone from the Settings option, but it is taking too much time. It has been 24 hours already, but the device is only boot-looping. I've also tried to boot into recovery-mode (by holding the Vol+ and Vol- buttons while pressing Power), but this boot-looped as well.
How can I solve this problem? The device is rooted, if that's any help.