CHIP BIOS per SAMSUNG NP700Z3C NP700Z4C NP700Z5C NP700G7A NP700Z4AH NP270E5R
For example: Samsung NP700Z4AH. If you fail to upgrade your BIOS and now your laptop doesn't boot, we can help you. replace the chip (requires skill to desolder and solder plus a fine-tipped soldering iron or a hot-air station).