Aspire 4937 Model KAL90 black screen after BIOS update

What was the original name of the BIOS.FD that you used? Jack E/NJ

Thank you for responding Jack.
Do you mean the new BIOS.FD that i used to update my old bios version?
Abdullah.

>>>I tried to update my BIOS from v1.2 to v1.8 (latest bios for my machine), I did it with the DOS update method.>>>

What was the original name of the FD file in v1.8? I assume you had to decompress whatever bios file you downloaded---it should be in the DOS subdirectory. Jack E/NJ

I apologize, it took me a while to reply, had to get on another computer to check the previously downloaded BIOS.FD version.

The downloaded BIOS dos driver contained 3 files [KAL90108.bat - KAL90108.fd - FLASHIT.exe], but as I mentioned before, this FD showed an incompatible different version.

The laptop's SNID: 91414543816

Model Name: AS4937G

Part Number: LX.P430X.017

However, The FD BIOS I used to update was KALG0208.FD (Which belongs to Acer 4736).

Abdullah.

[edited to override word filter]

>>>KAL90108.fd>>>

Try this. FAT format a USB stick with an activity LED. Copy KAL90108.fd to the stick. No other files or folders should be on this stick. Power down your machine. Insert the USB stick. Press & hold Fn+Esc keys. Then power up while still holding the Fn+Esc keys. You should soon see USB LED activity if the bios boot block hasn't been corrupted. Let go of the Fn+Esc only after you see significant LED activity. Report back. Jack E/NJ

Unfortunately, the USB LED didn't blink.
Any other ideas?

I need to know the name of the compressed bios file that you downloaded and the website from which you downloaded it. Jack E/NJ

https://www.acer.com/ac/en/US/content/support-product/1091?b=1

Hello

The name of the compressed file is (BIOS_Acer_1.08_A_A.zip)

downloded from

Hello Jack,

Its correct what Hazx said about the compressed file name. However, the BIOS that was installed which corrupted the system was named (BIOS_Acer_2.08_A_A.zip) which brlongs to Acer Model 4736.

Downloded from:

http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_2.08_A_A.zip?acerid=634031802645673357&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%204736&OS=ALL&LC=en&BC=ACER&SC=PA_6#_ga=1.197581800.659049266.1483318005

OK. Power down machine. Remove battery and charger. Press and hold the power button for a minute or so. Re-insert the FAT stick with the .fd file. Press and hold the Fn+Esc keys and don't let go. Re-insert the charger only, no battery. Then press & hold the power button. If you see USB LED activity, release the power button and Fn+Esc keys. The machine may or may not shut off after LED activity stops. If not, power down by pressing and holding power button. Remove USB stick. Then power up again. Report back with results. Jack E/NJ

the laptop powers up by by pressing the button then releasing it ,,so pressing the button and holding it wont turn it on

Then release the power button if it won't power up by holding it down. Jack E/NJ

The led flash worked , the laptop didnt shutdown by it self , i tried holding the power button but it didnt work , had to unplug power cable,, i turn it back on and black screen still exist

Note: Shutting down the laptop with power button works fine without previous method

>>>The led flash worked , the laptop didnt shutdown by it self , i tried holding the power button but it didnt work , had to unplug power cable,, i turn it back on and black screen still exist >>>

OK. Let's try it this way. Reformat the USB-LED stick to FAT32 and copy the .FD to it. The only file on it. Then remove battery and power supply. Press & hold power button for a minute or so without the battery or charger.

Then insert the FAT32 stick with the FD file. Press & hold Fn+Esc. Don't let go. Plug in charger, no battery. Then push power button to power up (don't hold the power button if it won't power up) while still holding the Fn+Esc keys. Release keys when LED activity is confirmed. Hopefully machine will now shut down on it's own. Report back with results.

Jack E/NJ

The machine still on , it did not shut down , power button still not working