Page 1 of 1

Emachine Laptop dead no power after kbc update fail

Posted: Thu Aug 17, 2006 4:41 am
by reiluke
Sirs,

pls sirs need advice, my laptop emachine m5305 laptop froze while it was flashing kbc update, i waited for 30min but did not stop responded, so i pressed the power but wouldnt turn off, i decided to remove the battery, it turned off but was dead afterwards. no power, leds dont light, battery and ac dont work. There were two bios file update, 1 was for the main bios, the other was called kbc3700.

Bios chip was socketed, so i had it reprogrammed to the original bios on a computer shop but it still doesnt power up.

could it be that my board went dead?

thanks,

bios file http://www.4shared.com/file/3091983/f1adc093/bios.html

Posted: Sat Sep 16, 2006 4:38 am
by reiluke
i reprogrammed my chip, old file and the new one. doesnt work

argh

is there another chip for keyboard? i mean the kbc?

Posted: Sat Sep 16, 2006 4:34 pm
by edwin
kbc is another bios chip. Not sure where it's located and if it is socketed.

Posted: Mon Sep 18, 2006 2:41 am
by reiluke
ic, well my mobo is trash. cant find any info on the kbc chip on google

Posted: Thu Oct 05, 2006 3:13 pm
by NickS
The keyboard controller (KBC) chip might be similar to an 8751. Do you have pictures?

Posted: Fri Oct 06, 2006 3:18 am
by reiluke
hi sir, thanks for the reply, what is an 8751? can i reflash it with a universal programmer? here are some pictures of the front and back


Image
Image
Image
Image

Posted: Fri Oct 06, 2006 10:01 am
by NickS
Big pictures!
The last picture shows what we are looking for - there is a Hitachi H8/3437 microcontroller, 64F3437TF16. Datasheet available here. This includes 60 KB flash memory.

Since it is not in a socket, it would not be easy to re-program. The "on-board programming" facility mentioned in the data sheet needs a user program to be running in the controller.

I don't know whether this machine supports the Phoenix "crisis recovery" system and whether "crisis recovery" includes kbc firmware. There is a post about KBC flash issues with Sony VAIO which may cast some light on this, see here. It may be worthwhile sending a PM or email to Joe (sorry, Joe!).

Posted: Fri Oct 06, 2006 10:36 am
by reiluke
Thanks NikS you have been very helpful. i dont think its possible for me to reprogram the chip, better off selling the lcd and parts

i would never buy an emachine product again

Posted: Fri Jan 12, 2007 2:26 am
by whisky
I have absolutely same problem with one laptop MITEC model 7521+ (flashed with wrong file for KBC kontroler) byt in my case HITACI is 64F3434TF16 (32 Kb of flash) .Now I wanna know if this two microcontrolers are similar for programming becouse in my univerzal programmer I have 64F3437TF16 in device list . If is same I will take out and programmig

Thanks in advance

WHISKY