Haha!!! that is 3 blocks being flashed. Essentially "block 0" is block 1 and "block 1" is blok 2 and so on. hmmm...the phone switching off like that is wierd, could be mismatch (doubt so though). It could be that the battery is damaged (not lose or anything like that, like the internal parts of the battery-memory-). My old nokia use to do that and i just bought a new battery and all sorted. Try see if a friend has a similar phone and test your phone with his or her battery. Hope you solve it soon