ACER Aspire 5740 dead after BIOS UPDATE

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1
hi
I am aware that lots of threads have been posted regarding this issue but I wanted to revive it, hopefully new methods or solutions are available

I have updated my BIOS from 1.09 to 1.16 under windows 7 64bit. everything went well, update completed then computer restarted. THEN DID NOT BOOT SINCE.

I tried dissambling and removing CMOS battery then putting it back. 
Tried many Crisis Disk with 1.16 BIOS.WPH and 1.28 nothing
I am using a Sandisk Cruzer 2gb with no luck. I tried 32gb and 4gb as well. nothing

The problem is that when I try FN+ESC and Power up. the usb key doesnt blink as when it reads normally.

PLEASE HELP
 

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1


yes what i did was i took off the bios chip. programmed it using a chip programmer then solder it back.
all done ;)
 

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1
no. the screen remains black. only power button is on. no activity of hdd. fan is running low

i tried the CRISIS DISK method to recover my bios. but couldn't get it to work.

any ideas?
 

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1
thank you for the link. I've tried every possible way.
i am about to desolder the bios and solder a new one which is preprogrammed from an ebayer

could you help me locate the BIOS CHIP on the motherboard. as there is a KBC bios as well. so i am lost
 

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1
exactly. the chip in the image is a KBC BIOS not the main system one. reference is MX25L1005

this is why i am looking for the right bios on the board :)
 

LukeDan

Estimable
Oct 23, 2015
2
0
4,510
0


snawfel1983, did you ever get this resolved? Mine just did the exact same thing you are describing, and I'm at a loss.
 

LukeDan

Estimable
Oct 23, 2015
2
0
4,510
0


Mine has done the exact same thing described in this thread.
It appears that the BIOS chip is soldered to the motherboard. Am I seeing that image correctly?
 

snawfel1983

Estimable
Jun 13, 2015
6
0
4,520
1


yes what i did was i took off the bios chip. programmed it using a chip programmer then solder it back.
all done ;)
 
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