Re: APC Back-ups RS 1500 Dead
Thank you for the solution. I saved my UPS which had the same problem.
I had one SMD and one electrolytic cap of 22uf/16V ; I replaced both with electrolytic 22uf/63V.
Kudos !
CA50
Member
Last Activity: 08-05-2023, 10:19 AM
Joined: 01-03-2022
Location: Bengaluru
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Help with file extraction from DVR firmware dump
Hello experts,
I have both dump and firmware from a DVR system. I need to extract the linux file system from the dumps.
I tried with binwalk, but could not get all the files. Can anyone please help me with the steps.
I have included the firmware in the attachment and here is the current binwalk output
[CODE]DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
178176 0x2B800 CRC32 polynomial table, little endian
188568 0x2E098 CRC32 polynomial table, little... -
Re: lenovo IdeaPad S145 bios needed
Thank you, Is it possible to flash this using CH341a programmer?
The chip is IT8586E....Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
Hello, can anyone please extract the EC bios for S145-15API model.Last edited by CA50; 01-06-2023, 12:31 PM.Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
One observation: After I write the BIOS chip and starts the laptop; even though the machine doesn't work, the BIOS chip content is changed.
I verified this multiple times.
How to I enable the protection bit. My chip is GD25LQ64CLeave a comment:
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Re: lenovo IdeaPad S145 bios needed
Update: After flashing this BIOS, the problem is not resolved. The flashing disappears when the battery is charged, but it doesn't turn one. I can see that he display backlight turns on and off.
Any help ?Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
Thank you, I will test and revert back....Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
I tried that but it didn't work. I guess I made some mistake while copying the DMI.
Can you please help ?...Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
Hello everyone, I have S145-15API Laptop with the common flashing power led problem.
Assuming this to be a corrupt bios problem, can you provide me a fixed bios.
here are the laptop details and the original bios is attached
Motherboard: GS440 & GS540 NMC511 Rev. 1.0
Serial Number:PF1E2ZQM
Machine Type Model:81UT001CIN
TIALast edited by SMDFlea; 04-10-2023, 08:44 AM.Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
Thanks a lot. Can anyone please explain the what DMI offset means?
Can I just burn the ROM chip with the downloaded image ?Leave a comment:
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Re: lenovo IdeaPad S145 Flashing Power Button Led
@SMDFlea, Thank youLeave a comment:
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Re: lenovo IdeaPad S145 Flashing Power Button Led
Thank you for your response. I checked the lenovo site; the downloadable BIOS image is an exe file. ([url]https://pcsupport.lenovo.com/in/en/products/laptops-and-netbooks/ideapad-s-series-netbooks/s145-15api/81ut/81ut001cin/pf1e2zqm/downloads/driver-list/component?name=BIOS%2FUEFI[/url])
How can i get the bin file to write to the chip directly ?Re: lenovo IdeaPad S145 Flashing Pow...OS image is an...Leave a comment:
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Re: lenovo IdeaPad S145 Flashing Power Button Led
Thank you for this info.
I am facing the same issue. Assuming this to be a corrupt BIOS issue, where can i find the correct BIOS image ?...Leave a comment:
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Re: lenovo IdeaPad S145 bios needed
Hello everyone, Happy New Year to you all.
I have a Lenovo S145-15API laptop there both the side LED and the power LED blinks when the charger is connected.
I suspect, this to be a corrupt BIOS issue; can anyone please help ?
I have attached the ROM dump.Last edited by SMDFlea; 04-10-2023, 08:44 AM.Leave a comment:
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Re: lenovo IdeaPad S145 Flashing Power Button Led
I am facing the same issue. How did you flash the BIOS without booting the laptop?...Leave a comment:
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