I cannot browse the live web or access Acer’s current servers, so I cannot give you a direct, guaranteed download link that works today.
Important Warning: Updating the BIOS carries a small risk. If the process is interrupted or the wrong file is installed, the laptop may become unusable. Ensure your laptop is plugged into a reliable power source before proceeding. acer es1512 bios update link
Preparation: Ensure your laptop is plugged into a stable power source (AC adapter) and save any open work. I cannot browse the live web or access
I should also make sure to direct the user to Acer's official support resources and verify they're using the correct model name. Maybe the model number isn't exact, so having them confirm their specific model would help in case there are similar models. Do not interrupt the update process : Interrupting
Follow the on-screen prompts; the laptop will automatically restart and begin the flashing process. Do not turn off or unplug the device during this time. Critical Safety Tips Latest available BIOS version - Acer Community
To sum up, the main steps are:
Check for Updates: Visit the official Acer support website to see if there are any BIOS updates available for your Acer ES1512.