Hi, I wanted to try to remove the pass on the bios from HP Elitebook 845 G7, but when I unsoldered the "Winbond 25Q256JVEN" chip, a "GND" pin broke, so the chip no longer works (I tried to insert it in the programmer anyway, but it reads another chip). What should I do? Should I buy the same chip, like on aliexpress, and solder it back into the board? Thank you for your suggestion
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Re: Pin chip bios broken
Post a picture of the ic with the broken pin. -
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Re: Pin chip bios broken
Attach a wire to the MIDDLE large pad under the chip - fairly confident (but not 100%) that this metal belly is also ground.
So in your reader, apply the soldered wire to your programmer tool's ground and test if it still works or not.
Update:
It is worth testing but also note the attached common footprint details for this WSON package.Attached FilesLast edited by mon2; 03-23-2023, 07:06 AM.Comment
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Re: Pin chip bios broken
I am not a bios guy (dog) but yes, do recommend that you purchase another fresh bios for this repair. Be sure that you purchase one with the exact part number.
You will need to post the full bin file contents in the bios section and request for the password removal. Someone will review and post a clean image for you.
Do review the datasheet to confirm if the bios is a low voltage (1v8) vs. 3v3 flash device. Respectively, you need to be sure your programmer can support the same voltage during the read / write process.Comment
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Re: Pin chip bios broken
Yes, it is a bit of a pickle.
1) you can post the request in the BIOS forum and hope that someone may have a bios image to offer.
2) see attached - is that a metal dot that could be the missing ground connection? If yes, with extreme care, you could try to drill away some of the plastic housing to allow enough space to solder back a wire for his connection.Attached FilesComment
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Re: Pin chip bios broken
It is worth a try
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Re: Pin chip bios broken
Yes you can.Comment
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Hello Community,
I recently tried to change the Batterie on my Omen by HP Laptop 17 an104ng and after putting in the new batterie ([Batterie Link](https://www.amazon.de/7xinbox-17-AN0...&keywords=16%2... -
Long story short:
- dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
- gave the computer to his son a couple years later
- son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
- too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
(seems like the story was not that short)
He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8... -
Hello, first of all, excuse me, I am using the translator, English is not my native language.
I have a Lenovo ideapad 330S - 14IKB laptop.
The tablet did not recognize me when I connected it, so I checked the device manager and I realized that there were many with the exclamation mark, so one by one I began to update their drivers until the sign disappeared of admiration, I even updated the BIOS, and the laptop rebooted normally and worked, so far so good, but the tablet still did not recognize me, I read on the internet that it could be due to a... -
My pc updated bios through Windows Update and I was greeted with BLACK SCREEN WITH CPU FAN MAX SPEED. I don't think there is even a screen signal, because it triggers my monitor for a couple seconds and then the monitor turns off. I tried the other outputs as well.- I tried clearing bios, resetting bios, removed the CMOS battery, removed m.2 ssd, wifi, and ram. Still black screen with CPU fan blasting.
- I tried using the Lenovo BIOS CD and BIOS USB, but neither worked. At least I couldn't get anything to work.
- I could only locate two chips that look like bios chips. Could someone verify this
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Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.
The BIOS...
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