Bios Mods -The Best BIOS Update and Modification Source

You again don't answer my question...

(01-10-2018, 08:36 AM)DeathBringer Wrote: [ -> ]

(01-10-2018, 08:02 AM)N00b-un-2 Wrote: [ -> ]No. Just a solid black screen that says Lenovo...

Does it occur with Sandy Bridge-E or Ivy Bridge-EP CPU?

(01-10-2018, 02:05 PM)N00b-un-2 Wrote: [ -> ]I don't have a 16 pin clip. I don't really want to try and desolder it from the board.

Read this - https://download.lenovo.com/ibmdl/pub/pc..._ug_en.pdf

Quote:Recovering from a POST/BIOS update failure

If the power to your computer is interrupted while the POST and BIOS is being updated, your computer
might not restart correctly. If this happens, perform the following procedure to recover from the POST and
BIOS update failure. This procedure is commonly called Boot-block Recovery.
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 40.
3. Locate the Clear CMOS /Recovery jumper on the system board. See “Locating parts on the system
board” on page 12.
4. Remove any cables that impede access to the Clear CMOS /Recovery jumper.
5. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and
pin 3).
6. Reconnect any cables that were disconnected and reinstall the PCI card if removed.
7. Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical
outlets. See “Completing the parts replacement” on page 65.
8. Turn on the computer and then insert the POST and BIOS update (flash update) disc into the optical
drive. Wait a few minutes. Then, the recovery session begins. The recovery session will take two to
three minutes. During this time, a warning message will be displayed and no action is needed from you.
9. After the recovery session is completed, there will be no video, and your computer will automatically
turn off.
10. Repeat step 1 through step 4.
11. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
12. Reconnect any cables that were disconnected and reinstall the PCI card if removed.
13. Reinstall the computer cover and reconnect any cables that were disconnected.
14. Turn on the computer to restart the operating system.

I tried that, both with a recovery CD and with a USB drive.  it powers up but there's no video, 2 long beeps followed by repeated two short beeps at about 5 second intervals.  I think it won't start the recovery because it now thinks it's a 4351 model and so the BIOS doesn't match.

(01-10-2018, 02:05 PM)N00b-un-2 Wrote: [ -> ]

(01-10-2018, 01:45 PM)DeathBringer Wrote: [ -> ]May be. It has 16MB. Try to read it.

I don't have a 16 pin clip.  I don't really want to try and desolder it from the board.

I ended up desoldering the chip from the board.  Can't break it any worse than I already did, right?  It's the only thing that looks like it might be the BIOS chip on the board, but like you said it's 16MB.    Here's the dump I took of the chip

https://drive.google.com/file/d/1gumkJGx...sp=sharing
 
However, I think it's only reading half the chip, the adapter I have it soldered to at the moment only has 8 pins, not 16.  Any advice?

It seems OK.
Write your dump with OLD.ROM integrated - https://drive.google.com/open?id=1m-a1fm...pnFKB1CqgO

(01-10-2018, 11:51 PM)DeathBringer Wrote: [ -> ]It seems OK.
Write your dump with OLD.ROM integrated - https://drive.google.com/open?id=1m-a1fm...pnFKB1CqgO

Thanks, I wrote he DUMP_MOD.bin to the chip.  It will have to wait until I get home from work this afternoon before I can solder it back to the motherboard and test.

(01-11-2018, 06:46 AM)N00b-un-2 Wrote: [ -> ]

(01-10-2018, 11:51 PM)DeathBringer Wrote: [ -> ]It seems OK.
Write your dump with OLD.ROM integrated - https://drive.google.com/open?id=1m-a1fm...pnFKB1CqgO

Thanks, I wrote he DUMP_MOD.bin to the chip.  It will have to wait until I get home from work this afternoon before I can solder it back to the motherboard and test.

Nope.  Board won't even power on now.  I'm going to pull the chip off and reflash it with the dump I took of it earlier.  Hopefully it will power on at that point.

(01-11-2018, 06:46 AM)N00b-un-2 Wrote: [ -> ]I wrote he DUMP_MOD.bin to the chip.

Did you erase chip before writing? Did you read and verify after writing?

(01-12-2018, 07:04 AM)N00b-un-2 Wrote: [ -> ]I'm going to pull the chip off and reflash it with the dump I took of it earlier. 

Can I see this dump?

(01-12-2018, 07:06 AM)DeathBringer Wrote: [ -> ]

(01-11-2018, 06:46 AM)N00b-un-2 Wrote: [ -> ]I wrote he DUMP_MOD.bin to the chip.

Did you erase chip before writing? Did you read and verify after writing?

(01-12-2018, 07:04 AM)N00b-un-2 Wrote: [ -> ]I'm going to pull the chip off and reflash it with the dump I took of it earlier. 

Can I see this dump?

I'm pretty sure I erased it beforehand, and yes I read and verified after flashing.

??? I already gave you the link

https://drive.google.com/file/d/1gumkJGx...sp=sharing

I understand. With it you should receive only Lenovo label.