Good afternoon. Need help with an acer An515-58-78t laptop. black screen after bios update. Board la-l978p ih50a rev 1a. I want to flash through the programmer. Made an old dump on which the laptop does not start.why does the old dump weigh only 2MB.When I try to flash a new BIOS it says the buffer size is not equal to the chip size please help. bios flash drive labeling w25q16jvsiq