Hello all,

So after change again the MoBo, issue still the same... The numeric part of keyboard doesn't work.
I try to do a fresh install of Windows and nothing more.

When the PC starts, it is impossible to turn on the Num Lock key but as soon as Windows loads, then the indicator lights up without ever working. It is not possible to turn it off and the number keys as well as the "+", "-", "Enter", "*", "/" and "Del".
I tried a lot of things with BDMaster (thanks again) but it doesn't work.

I ordered a new keyboard but the problem was the same.
I admit being totally lost ...

Strange thing: if I write the original bios on the new card, it will take more than 30 seconds to start. If I inject the bios supplied with the motherboard, then the pc starts up instantly.
I don't understand what reconditioners are doing in China, it's really weird ...

Can you help me ? Do you have an idea?

Thank you !

EDIT :
End of story.

It is in fact necessary to change this resistance of position in order to put back the configuration correctly.

I think this is a way of configuring the type of keyboard according to the geographical areas but in a hardware way ...

Incredible and almost impossible to find if the technician had not referred me.

Hello;
I have the same problem with a motherboard that I bought on Aliexpress for the same laptop model: 330s-15ikb, in the bios the MTM and Product Name are INVALID. I also cannot access the information of the original board because that board no longer turns on and I don't have an SPI CH341a programmer.
I have tried to use the Lvar tool but I have not been successful, when I have written, using cmd window with administrator permissions, for example, the command:
LvarWin64v229.exe /w /pn /c "Lenovo Ideapad 330S-15IKB"
responds "Other error."

What am I doing wrong?
Is there any way I can fix the problem?

so far I've been able to run the commands for Product Name, MTM, and S/N

first :

LvarWin64v229.exe /w /pn /c "Ideapad 330S-15IKB"

After I runned the command:

LvarWin64v229.exe /r /pn
00 01 02 03 04 05 06 07 - 08 09 0A 0B 0C 0D 0E 0F ASCII
------------------------------------------------- ----------------
00 |49 64 65 61 70 61 64 20 - 33 33 30 53 2d 31 35 49 Ideapad 330S-15I
01 |4b 42 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 KB..............
02 |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
03 |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
.
.
.
3ff |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
Success!

and

LvarWin64v229.exe /w /mt /c "81F500JNLM"

also

LvarWin64v229.exe /r /mt
00 01 02 03 04 05 06 07 - 08 09 0A 0B 0C 0D 0E 0F ASCII
------------------------------------------------- ----------------
00 |38 31 46 35 30 30 4a 4e - 4c 4d 00 00 00 00 00 00 81F500JNLM......
01 |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
02 |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
03 |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
.
.
.
3ff |00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
Success!

and did the same for sn, then reboot, but in the bios still the same invalid parameters.

What am I doing wrong?