Most Acer DMI tools require a bootable environment to function correctly.
Writing to the DMI block carries a risk of corrupting the BIOS. Always back up your current BIOS chip using a programmer or software dump before proceeding. acer dmi tool link
Rather than searching for a "universal" link, search for your specific model series (e.g., "Acer Aspire A515 DMI Tool"). Tools are often specific to the motherboard manufacturer (Compal, Quanta, or Wistron) rather than Acer itself. Most Acer DMI tools require a bootable environment