i have had my blackberry for just under a year the other day it had full charge and then 20 minutes later it was flashing red. when i got home i charged it all night and in the morning still nothing happened. i bought a new battery and left that on charge all night again and still nothing happened with the new battery. with the new battery the red light would come on then go off. i have been told its a power problem and will have to pay £95 to fix it. is there anything else i could try before spending that money