Crisis Mode Bios for ACER apsire 4752
So I have a problem, my Laptop is Hanging on the boot screen at 75%.
Windows upgraded to windows 10 then rolled back to 7 tried to restart and that's when the problem started.
DETAILS:
At the boot screen the laptop is unresponsive:
Pressing any of the F-Keys does nothing.
Pressing CTRL ALT DEL resets the laptop with the same problem.
the progress bar is stuck at 75%
No audiable beeps are heard on turn on.
The Bios shows the Phoenix logo in the bottom right corner
Methods of recovery tried:
I have used a 4gb usb pen and the CrisDisk program to make a recovery disk
I have used all the BIOS downloads available on the acer support website for my Laptop model
I have Formatted the Pen drive then using the CRISDISK I have create the dos disk, I then unplugged it andplugged it back in and runt he crisdisk again as advised I then moved my Bios to the pen drive and renamed it BIOS.WPH
I put the pen drive into the laptop with out a power plug or battery in, inserted the power while holding FN+ESC and powered on the laptop, the screen is black and the USB shows activity for 5 seconds then stops, the laptop does not restart. after 30 minutes manually restarting the laptop takes me back to the Frozen boot screen.
I have tried using the bios with its original downloaded name and changing it to BIOS.wph
Nothing is working! Am I naming the bios wrong? am I creating the disk incorrectly I am at a loose end
P;ease someone help me!