I have an old acer aspire 5745g laptop with windows 10. I used SSD+8GM RAM a few years back to make it running smooth, which it did nicely. However, currently, I believe the NVIDIA GeForce GT 330M graphic card is damaged and not working, as such it was using integrated intel graphic card only; that's why it was displaying but with poor/low brightness. Also, the laptop replaced battery is dead. Yesterday, I updated BIOS from 1.11 to 1.19 in a hope that it could recognize NVIDIA graphic card (but I am now sure graphic card is damaged). To my pain, now it is showing black screen when I start it. I downloaded BIOS from here: https://www.acer.com/ac/en/IN/content/support-product/2128?b=1 Please help, how to get back the screen.
What I did just now was, I flashed old BIOS 1.02 and it worked. 1. I downloaded the oldest windows version from https://www.acer.com/ac/en/IN/content/support-product/2128?b=1 2. Extracted the windows version and renamed ZR7x64EC.fd ---to---> ZR7X64.fd 3. Formatted a USB drive with FAT and copied ZR7X64.fd to its root. 4. Now I turned off the laptop while battery & power cable still connected to it. 7. Connected the USB drive to a USB socket in the laptop and then pressed Fn+ESC. While keeping Fn+ESC pressed, I pressed the Power Button ON. 8. I kept Fn+ESC pressed for a 5seconds, until I see the power-led in laptop start blinking. 9. Left the laptop as it is for a few minutes, and it was still turned ON. 10. After a few minutes, I turned off the laptop and turned it ON. 11. And to my wonder-and-surprise, it had the oldest BIOS v1.02 flashed/installed into it. 12. And I am able to see the screen now. I hope this helps someone out there, in case of a need.