Lenovo nm-d281 IT8176 replacing

[Francisco.s]

Hi, I have replaced a IT8176 in a Lenovo nm-d281 motherboard, and need to know how to program this keyboard controller.

The initial problem was an erratic behavior of numeric key pad, due to one of the IT8176 keyboard pins was shorted to gnd.

Now it completely doesn't work. I tried to R/W new chip with Vertyanov programmer but don't know which pin of the 34 pin keyboard connector have to be connected.

Does somebody know how it should be connected to Vertyanov or Svod programmer?

[reformatt]

Schematic is available for that board, can't you just create the keyboard map for the KSI/KSO pins in the SVOD software?

https://www.badcaps.net/filedata/fetch?id=3169417

[Francisco.s]

Hi reformatt, I have the software for SVOD programmer but not the programmer,.

I have the Vertyanov programmer first edition, and have tested the two settings for 34 pin connections in the "MB connection ITE" file. (located in Vertyanov programmer foder)

This are the connections tested:

VG20SQG KB_pins=34 LEFT DOWN 08MM PD0=9 PD1=8 PD2=7 PD3=11 PD4=10 PD5=12 PD6=14 PD7=15 BUSY=18 STB=27 AFD=30 INIT=24 SLIN=25 KSI4=26 KSI5=28

VGFG r2.1 (J3101) KB_pins=34 LEFT UP 08MM PD0=26 PD1=27 PD2=28 PD3=24 PD4=25 PD5=23 PD6=21 PD7=20 BUSY=17 STB=8 AFD=5 INIT=11 SLIN=10 KSI4=9 KSI5=7

I can not read IT chip with none of them.

I can ask a friend for the SVOD programmer if it were the remedy for this board, but I think I can do it with Vertyanov programmer. (knowing the rigth connections of course)

Can you suggest another way to connect the programmer?

Thanks reformatt, I appreciate your help.

[reformatt]

Haven't come across a dual EC design. I wonder how you program the main EC chip (IT8227E-192). The other EC looks to be 56K, I'm guessing the code for that is embedded somewhere in the BIOS.

Not familiar with the Vertyanov, but it seems you can create custom configs and just add it to the MB connection ITE text file.

For example:

NM-D281 KB_pins=32 LEFT DOWN 08MM PD0=20 PD1=16 PD2=14 PD3=9 PD4=13 PD5=17 PD6=10 PD7=12 BUSY=23 STB=15 AFD=26 INIT=19 SLIN=18 KSI4=22 KSI5=21

LEFT and DOWN refer to pin 1 orientation, and whether the connector pins on the KBC are up or down. You'll have to work that out from looking at the keyboard connector.

[Francisco.s]

Hi reformatt, seems that the problem was the IT8176 was damaged or not being properly soldered. I have replaced with a new one and it is working perfectly. This one is from the same vendor, and received the same day as the other one.

I will do some tests and tell you more about the issue.

[Francisco.s]

Finally I have managed to read the IT8176 with Vertyanov programmer using the NM-D563 configuration. I've search on internet and found the following:

NM-D563 KB_pins=34 (JKB2) LEFT DOWN 08MM PD0=20 PD1=16 PD2=14 PD3=9 PD4=13 PD5=17 PD6=10 PD7=12 BUSY=23 STB=15 AFD=26 INIT=19 SLIN=18 KSI4=22 KSI5=21 FLASH=56 CHIP=IT8176FN-56A

This way I could read the chip and make a backup of its data. I have not write the chip, seems that it takes this data from bios when booting the first time.

This is the working backup:

[Francisco.s]

Haven't come across a dual EC design. I wonder how you program the main EC chip (IT8227E-192)

The nm-d281 motherboard has another connector to read and write the main kbc.

I'm guessing the code for that is embedded somewhere in the BIOS.

I think you are right, the keyboard worked without using the programmer.

Thanks and regards.

[bios29]

Hello , i answer to this post tofay i have a lenovo nm-d56 with no keyboard working . I tried an other keyboard same issue so its due to the it8179fn-56A i found the firmware but impossible to programming with my svod 4 , do you have a motherboard file somewhere ?or if i order a new one it will program by itself at boot ? Thanks

[Fencus]

Hello , I have the same motherboard and reprogrammed the IT8227E-192 EC cause its need to replaced and its working fine except the keyboard not working . Probably I accidentally ereased the keyboard controller firmware when I tried to program de 192Kb flash via the keyconn.
Can U guys post the dump of the 56kB ite8176 firmware ? Thanks

[khaahk]

Here:

[Fencus]

Here:

Thanks , keyboard now working fine

[sabbir]

Thanks , keyboard now working fine

How you program that chip?

[Fencus]

How you program that chip?

With Vertyanov programmer and I used an adapter for the chip, because the board has a dedicated KBC so I couldnt program the IT8227 via the keyboard connector .

[theused13]

With Vertyanov programmer and I used an adapter for the chip, because the board has a dedicated KBC so I couldnt program the IT8227 via the keyboard connector .

what kind of adapter you use , i have a SAS programmer

[Fencus]

what kind of adapter you use , i have a SAS programmer

I dont familiar with that programmer. I've attached a photo from the adapter i used. I think it should work with other programmers but i m not 100 sure.