Bios For ThinkPad L13 Gen 2

[hoaca388]

i found 2 chip 32 mo i did read both of them

L13 Yoga Gen 2 Laptops (ThinkPad) - Type 20VL

[nabilgo]

L13 Yoga Gen 2 Laptops (ThinkPad) - Type 20VL

bro theres two chip with 32 mo which one ?

[hoaca388]

bro theres two chip with 32 mo which one ?

Just try the file I gave you.

[nabilgo]

Just try the file I gave you.

bro i told which chip i put theres two bios 32 mo ?

[nabilgo]

Just try the file I gave you.

which one i should flash

[nabilgo]

Hi, serial number is R91096SS.
The old bin is 32mb. I find some files there but not this size.
I programmed but i have 3 blinks on led.

I tested also an older bios but nothing. Something happened with Intel Management Engine Firmware? Is there any incompatibility?

did u solve the problem ?

[hoaca388]

which one i should flash

Bios 1.

[nabilgo]

Bios 1.

when i flash it with ur bios no power and cpu makes noise but when i did flasht it on bios 2 the laptop start but the probleme still the same ??

[3pka]

Lenovo Thinkpad L13 Gen 2 - Serial Number: PW-01A0XZ, Type Number: 21AB-003LUS
Rails checked ok and Fan working CPU, RAM warming but no display. If do CMOS Caps Lock, F1, F4 light showing until turn off. Next boot try no lights. That EC and BIOS gone?

[PMDev]

Hello everyone,

I'm looking for the original BIOS dumps for a Lenovo ThinkPad L13 Gen 2 i5.

Machine details:
- Serial Number (SN): R9-1092XF
- Type Number (TN): 20VH-001NMX

This motherboard has two BIOS chips. I have the first one (BIOS1), but the second chip (BIOS2) is physically missing from the board and I believe I will need to order and program it myself.

Details:
- BIOS1 chip: MX25L25673GM2I-08G
- BIOS2 chip: missing

Any help with the original dumps (BIN files) for both chips would be greatly appreciated.

Thank you in advance!

[SMDFlea]

Thread merged with existing topic.

[Zalman]

This motherboard has two BIOS chips. I have the first one (BIOS1), but the second chip (BIOS2) is physically missing from the board and I believe I will need to order and program it myself.

Details:
- BIOS1 chip: MX25L25673GM2I-08G
- BIOS2 chip: missing

Only units with vPro CPUs are supposed to have 2 chips (i5-1145G7 and i7-1185G7), the rest of them only have one. Open the schematics and you will see. Or check images on Lenovo's parts catalogue.

[PMDev]

Only units with vPro CPUs are supposed to have 2 chips (i5-1145G7 and i7-1185G7), the rest of them only have one. Open the schematics and you will see. Or check images on Lenovo's parts catalogue.

Ok so I will send you a Picture of the motherboard.


I will check the schematic when I will find it also. Thank you for sharing this info! I got a problem because when I turned it on there is only a beep melody on the beginning and laptopt turn off. So that why I was thinking about the second chip.

[Zalman]

I got a problem because when I turned it on there is only a beep melody on the beginning and laptopt turn off. So that why I was thinking about the second chip.

There is an app called Lenovo PC Diagnostics. It can decode the beep melody into an actual fault code. So I'd start from there.
And here is the picture of your board from Lenovo (FRU: 5B21K85606)
As you can see, there was no second chip. I believe there has to be some design flaw with L13G2, cause you can see dozens of them dead on eBay. Maybe it is a soldered ram that needs a reflow, maybe something else. I have no idea. In any case, there is more than enough working bios dumps for a board like yours on this forum. Give them a try. Even without cleaning ME region, the board should start. It is gonna post with a significant delay, but nonetheless, a donor BIOS should work if the hardware is functional.
You can use this link https://pcsupport.lenovo.com/us/en/warranty-lookup#/ to verify that you're picking the right donor. Type in the serial, go to Parts - As-Built and filter by Logic boards. There were at least a few of them with i5-1135G7, and i7-1165G7 should also work.
Also, just in case if you're not sure whether your screen is in good shape or not, you can try the built-in LCD test. With a charger connected, press Fn+CTRL+power. Damaged/dead screen or cable may result in it playing a tune. Or you can try hooking it up to an HDMI screen with the LCD cable detached from the board.

[PMDev]

There is an app called Lenovo PC Diagnostics. It can decode the beep melody into an actual fault code. So I'd start from there.
And here is the picture of your board from Lenovo (FRU: 5B21K85606)
As you can see, there was no second chip. I believe there has to be some design flaw with L13G2, cause you can see dozens of them dead on eBay. Maybe it is a soldered ram that needs a reflow, maybe something else. I have no idea. In any case, there is more than enough working bios dumps for a board like yours on this forum. Give them a try. Even without cleaning ME region, the board should start. It is gonna post with a significant delay, but nonetheless, a donor BIOS should work if the hardware is functional.
You can use this link https://pcsupport.lenovo.com/us/en/warranty-lookup#/ to verify that you're picking the right donor. Type in the serial, go to Parts - As-Built and filter by Logic boards. There were at least a few of them with i5-1135G7, and i7-1165G7 should also work.
Also, just in case if you're not sure whether your screen is in good shape or not, you can try the built-in LCD test. With a charger connected, press Fn+CTRL+power. Damaged/dead screen or cable may result in it playing a tune. Or you can try hooking it up to an HDMI screen with the LCD cable detached from the board.

Thank you very much for your efforts. I will try your suggestions and download the new BIOS from here. I will write at the end what the problem was.