I'm sorry I only saw your message a month later, my friend. It might not be useful to you anymore, but I'm adding it here in case it might be helpful to someone else....

The solution was right in front of my eyes here. I solved the problem with a file I downloaded from this topic. It contained the bios and ec file and when I uploaded both, the problem was solved. Thanks for your interest and help.

https://www.badcaps.net/forum/troubl...s-needed/page2

It didn't work. When I installed the 73ww you gave me, the computer didn't respond at all. The version number is not written in the content either. I think I need both the bios file and the ec file. If anyone has it on the forum, I would be happy if they shared it....

I'm sorry if my constant texting seems like spam, but this is the EC file I got from the 4 megabyte chip. I don't know if it will be of any use....

This is the latest bios version I installed. Is there an error in the file that's why I'm stuck on the black screen? Do I need to edit the file or something?...

Thanks for your answer. But I tried the bin files of versions h1et84 and 85. I loaded it into the chip with ch341a. The good news is that the computer no longer turns off when I press the power button. The bad news is that there is no image on the screen. Another thing I noticed is that the fan starts up and once it stops, it continues to run. I think I need to install an older bios version (63ww, 69ww, 75ww) but I can't find it. Could the bios version I installed be incompatible with the ec version running on h1et40ww....

By the way, I'm sure the original version is h1et40ww, but the content of the backup I took said 84ww, I think. I couldn't find the h1et40ww version anywhere

The device arrived at my place late. But I got the file you wanted....

Thanks for the reply. I'll try to do that and post it if I can. Also, is there a link where I can get the hotfix version of H1ET40WW....

I've done some testing. What I noticed is that when I remove the RAM and turn on the laptop, it doesn't shut down. However, since the RAM isn't installed, there's no display. Could it be that the BIOS isn't recognizing the RAM?

I would be very happy if you could help me.

By the way, I tried the file I had with different USB sticks and it still didn't work...

This is how it is written on the label
Lenovo B590
model name : 20208
SN: WB09338674
PN: 59354223
MO: WB02110927

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Hello, I wanted to update my laptop's BIOS from h1et40ww to h9et92ww. The website says I need to install h9et75ww first, so I tried installing that version first, but the installation failed and when I press the power button, the laptop momentarily turns on and off (the power light immediately flashes). I tried the crisis files with Fn+R but they didn't work (it works for about 30 seconds with Fn+R but nothing displays on the screen). How can I get a BIOS update file that I can use with Fn+R? Maybe I'm naming the files I put on the USB drive incorrectly. The ones I've tried are bios.bin, bios.cap,...