The customer brought an Acer Aspire 7720G which was unable to power up (no lights on) after the BIOS flashing from Windows went wrong. The customer used the original BIOS updater from Acer web site. In this state the notebook appears as completely dead, pressing the power button simply does not work. There is a certain procedure to recover the notebook from this state without disassembling it. Took about 30 minutes including the preparation.