Hello all,
I think I have found what is going to be a very common issue with this Lenovo model.
There is a plastic standoff on the bottom cover in the shape of a plus sign that is carving it's way into the board.
The result is the loss of clock and data lines to the battery and the unit intermittently charges and/or turns on.
See pics:
The white square at the inside corner of the board has a clear plus sign shaped abbrasion, and you can see the standoff on the rear cover just below and to the right.
The two traces going down and to the right...
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-
Today, 06:12 AM -
Hi, I wanted to ask you for some advice. I have a problem with this motherboard, which is missing several voltages. I've found 19V on two coils and 3V on another, but no voltage on the others.
Thank you in advance for all the advice.
Thank you.
... -
This macbook was waterdamaged pretty much everywhere on the board but it isn't too bad, got it all buffed out, no corrosion itself except for vbus, vbat caps etc.
I am powering just board with 140W genuine charger etc
I am getting all USBC ports at 5V 0.05A draw. PD communication is alive as i can trace it on my usb meter.
Same on magsafe and it has NO light.
I have main initial power rails but I am not sure what next power sequence steps should be
I think I am stuck where PMIC doesn't generate 3v3 or/and 5v and that should go into CDs so they could... -
Hello,
Could someone please help me with the BIOS files for this model? There are two 16mb SPI chips, not sure which one is BIOS.
Could not find any similarity between data on the two chips and the .fd file I downloaded from the Acer website. Suspect the data is corrupt.
I have a couple of these models here doing the same thing. Board seems fine other than no response from power button.
Is anyone capable of extracting from the Acer website BIOS download file?
Acer N24H1 SFG14-73T
Board: LA-6582P Rev 1.0
Serial NXKSMAA001429041DE2N00... -
i have this laptop in box with no display
can u rebuild this bios
hp 15- fa0031dx dag3pmb18b0...
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