bios repair FL490/FL590 NM-B931

[azemar]

Re: bios repair FL490/FL590 NM-B931

Azemar did you connect your laptop to an external monitor if the capslock is on i think its actually booting but noo screen

i think hoaca388 is right

Yes non Signal ,caps lock is on but no reaction numpad off and no reaction either just the cpu which heats up with 0.8v and 1.1v in voltage

[hoaca388]

Re: bios repair FL490/FL590 NM-B931

Yes non Signal ,caps lock is on but no reaction numpad off and no reaction either just the cpu which heats up with 0.8v and 1.1v in voltage

Post your problem here : https://www.badcaps.net/forum/forumdisplay.php?f=23

[azemar]

Re: bios repair FL490/FL590 NM-B931

Post your problem here : https://www.badcaps.net/forum/forumdisplay.php?f=23

Ok thanks you

[jhay06]

Re: bios repair FL490/FL590 NM-B931

Sorry if this like a thread hijack , please allow me to ask if the shared files on this thread is can be use on Thinkpad L490 ?

sorry again . thanks

[hoaca388]

Re: bios repair FL490/FL590 NM-B931

Sorry if this like a thread hijack , please allow me to ask if the shared files on this thread is can be use on Thinkpad L490 ?

sorry again . thanks

There are 2 models 20Q5 and 20Q6, you have to post the corrupted original bios file and serial number.

[jhay06]

Re: bios repair FL490/FL590 NM-B931

There are 2 models 20Q5 and 20Q6, you have to post the corrupted original bios file and serial number.

It's 20Q6 model
Serial number: PF2827G8

can you teach me how to extract bios using esp2019 ? or ch341 ? thanks

[SMDFlea]

Re: bios repair FL490/FL590 NM-B931

It's 20Q6 model
Serial number: PF2827G8

can you teach me how to extract bios using esp2019 ? or ch341 ? thanks

1. How to dump and flash
https://www.badcaps.net/forum/showpo...40&postcount=2

[Zibbo]

Re: bios repair FL490/FL590 NM-B931

ThinkPad L590 - Type 20Q7

Works perfectly. Thank you

[bmb2015]

Re: bios repair FL490/FL590 NM-B931

Hi Everyone. I have a Thinkpad L590 with a Winbond 25Q256JVEQ bios chip. The serial is PF-1YGGLK. Machine: 20Q700ALUK. Bios installed prior to issues was ROZET53W (1.31). The issues started happening when I was trying to make it into hackintosh and one of the steps required reset of nvram. After that it was blank. I was able to get the chip off motherboard and save the attached corrupt bios.

Hope this info helps.

[volinakis]

Re: bios repair FL490/FL590 NM-B931

Hi Everyone. I have a Thinkpad L590 with a Winbond 25Q256JVEQ bios chip. The serial is PF-1YGGLK. Machine: 20Q700ALUK. Bios installed prior to issues was ROZET53W (1.31). The issues started happening when I was trying to make it into hackintosh and one of the steps required reset of nvram. After that it was blank. I was able to get the chip off motherboard and save the attached corrupt bios.

Hope this info helps.

try

[bmb2015]

Re: bios repair FL490/FL590 NM-B931

try

Thank you so much again. This fixed my other laptop as well. It was a challenge to put the bios chip back on the board but it seems to have done the trick. Your help is very much appreciated volinakis.

[judamex]

Hello everyone, could someone help me to clean these files from password?

[Vesko356]

RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/troubl...before-posting

You MUST:

• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules.

[judamex]

Hello everyone, could someone help me to clean these files from password?

The model of the machine is L490 type 20Q6 the serials were erased by a scratch
These files are my backup

The model of the machine is L490 type 20Q6 the serials were erased by a scratch
These files are my backup

i found serial Number PF29G0QG

[Mcnick 3]

Re: bios repair FL490/FL590 NM-B931



try

Hello, i had the same issue, tried making a hackintosh, resetted the nvram and the screen went blank, i've flashed this bios, the laptop started working but it is booting very slow and audio doesn't work (in windows, Intel smart sound OED, code 10 FW did not sent FW Ready notification).

Lenovo ThinkPad L590 with i5-8365u vPro
Serial number: PF1W2L93
Machine number: 20Q8-S20E00
Bios version before issues: R0ZET57W 1.35
Bios chip: Macronix MX25L25673G

Here's my original bios after resetting nvram

[volinakis]

Hello, i had the same issue, tried making a hackintosh, resetted the nvram and the screen went blank, i've flashed this bios, the laptop started working but it is booting very slow and audio doesn't work (in windows, Intel smart sound OED, code 10 FW did not sent FW Ready notification).

Lenovo ThinkPad L590 with i5-8365u vPro
Serial number: PF1W2L93
Machine number: 20Q8-S20E00
Bios version before issues: R0ZET57W 1.35
Bios chip: Macronix MX25L25673G

Here's my original bios after resetting nvram

read again bios chipset, it can't be that corrupt after resetting nvram.

[Mcnick 3]

read again bios chipset, it can't be that corrupt after resetting nvram.

i've read it 2 times and i got the same readings, right now i flashed the bios "L590_NVRAM" and it turns on but is booting very slowly and the sound doesn't work like i described in my last message.

[volinakis]

i've read it 2 times and i got the same readings, right now i flashed the bios "L590_NVRAM" and it turns on but is booting very slowly and the sound doesn't work like i described in my last message.

yep, that's because ME. i'll try rebuild and clean ME for your bios but you have to use LMU to write back DMI

[volinakis]

i've read it 2 times and i got the same readings, right now i flashed the bios "L590_NVRAM" and it turns on but is booting very slowly and the sound doesn't work like i described in my last message.

try

[Mcnick 3]

yep, that's because ME. i'll try rebuild and clean ME for your bios but you have to use LMU to write back DMI

What is LMU and DMI? i'm new to this and i have a CH341A programmer.

[SMDFlea]

Lenovo Maintenance Utility to write the DMI (serial number,UUID etc)

[Mcnick 3]

try

Thank you very much it worked! I didn't have to use LMU it had already correct DMI.