Lenovo X1 Carbon 7th Gen Type 20R1
SN: PF1Y5BBJ
Board: GX490 NM-C661 Rev: 1.0
I have made two dumps of this bios, with the bios chip removed from the board and the hashes match on both dumps, but I cannot find the DMI information in the dumps except for the Windows product key, so I think it is corrupted. I have downloaded two bios updates from the Lenovo support site, but they contain small .PAT file, and 4 subfolders containing .FL1 and .FL2 files, which I don't understand enough to figure out how to use to fix my dump.
The problem with the laptop is that...
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-
Today, 09:14 AM
-
When I took it out it broke, and I want to get the same one or one of good quality.
Where can I buy it? On AliExpress they do not indicate the maximum amperages, and on Mouser or TME.EU it is impossible to search without having the exact reference.
Inductor needed:
It is the PP5V_G3S Coil of an A2159, 820-01598 (L7670)
On the front it says: 1R5
and in the schematic:
1.5UH - 20% - 12.5A - 0.017Ohm
PIMB062D-SM
152S00268
Can someone tell me where to buy it?
Thank you so much.Yesterday, 11:44 AM -
Hi all,
I sent my [B]ProArt Studiobook 16 OLED (H7600, 12th Gen Intel) [/B]to the local repair guys to have a very simple DC in port replaced. I sourced the part myself on accessoires-asus (french company) after struggling to find the right part in the UK. It looked completely the same to the installed part from what I can tell. Originally the only issue with the laptop was a bad / loose DC connection, and so the computer and battery acted completely normal aside from a very poor connection that would fail at certain angles. After the repair was completed I brought it home and used...Today, 08:16 AM -
Hi,
Anyone has a circuit diagram for this Samsung Power supply pls?
QP801CS shorted. Blu Cap is not cracked.
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265690}[/ATTACH]Hi,
Anyone has a circuit diagram for this Samsung Power supply pls?
QP801CS shorted. Blu Cap is not cracked.
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image...05-06-2024, 03:58 AM -
Hi, I'm looking for the boardview. I found only the schematic.
Thanks.Today, 08:15 AM -
Hi,
My M3401QA does not power on properly: no display (all black) and with white LED charging port blinking slowly (once every ~3 seconds).
Checked several points across the board and supplies are up and running but I need to double check when I get schematic.
Result is still the same even with DC jack inserted and battery connector removed.
Tried flashing the latest BIOS as of this date to no avail which I suspect has something to do with DMI but tools could not run properly on my machine and couldn't find manual copy of DMI through hex editor and not sure...Yesterday, 11:28 AM -
Hello,
I have 2 laptops E14 and one E15 with the same problem: don't turn on (no led) I suspect the bios and I have buy an CH341A.
But now I need a new bios...
I give below the older bios, can you check it please, or give a valid version of BIOS?
I will be very grateful to you
At first, this is the numbs of a e14: 20TA-00EWFR
with a bios chip: Gigadevice GD25Q80
Motherboard: GE4B0/GE5B0 NM-D011
thanks...05-17-2024, 02:58 PM -
Hello. Can you please help me with removing the bios password from my Panasonic Toughpad?04-22-2024, 09:21 AM
-
Hello my friend
I need bios for dell precision 7540
EDA50 LA - H271P REV : 1.0 ( A00)
My Laptop work ok power and data but when i shut down it , it not work power just orange light on led power
i used a lot of bios but no result it work power and data for one time but when i shut down it , it not work power and data until i left it for some time and it work again for one time
service tag 31JSF13
i upload orginal bios...Today, 07:20 AM -
Hi,
I bought a faulty A2289 for myself.
The USB-C meter was stuck on 5V.
After remove the board the U3100 was corroded and also around but quite light.
So I clean the U3100 and see R2834 in bad condition and its value was not good.
I replace it and not the USB-C meter shows 20V, the fan is spinning, CPU is hot but nothing else no picture.
The USB-C meters shows a very low current with all connected. It starts at 20v few mA and then stays at 20v 100mA.
How mush current the board is supposed to take without nothing...05-19-2024, 12:20 AM
-
PLEASE I need help on HP Stream Laptop 11-ak0040nr BIOS BIN FILE.
motherboard model is DAY0QMB16A0 REV:A.
i attached the old one below...Today, 05:10 AM -
Hi all,
I sent my [B]ProArt Studiobook 16 OLED (H7600, 12th Gen Intel) [/B]to the local repair guys to have a very simple DC in port replaced. I sourced the part myself on accessoires-asus (french company) after struggling to find the right part in the UK. It looked completely the same to the installed part from what I can tell. Originally the only issue with the laptop was a bad / loose DC connection, and so the computer and battery acted completely normal aside from a very poor connection that would fail at certain angles. After the repair was completed I brought it home and used...Today, 08:16 AM -
Hallo, can someone help me to unlock this Acer Aspire E1-472G. Thank you
Unlock Key Hint Number : 7EC6184CToday, 03:42 AM -
Hi, I'm looking for the boardview. I found only the schematic.
Thanks.Today, 08:15 AM -
Hello my friend
I need bios for dell precision 7540
EDA50 LA - H271P REV : 1.0 ( A00)
My Laptop work ok power and data but when i shut down it , it not work power just orange light on led power
i used a lot of bios but no result it work power and data for one time but when i shut down it , it not work power and data until i left it for some time and it work again for one time
service tag 31JSF13
i upload orginal bios...Today, 07:20 AM -
Hey all,
I hope anyone can help me get a hold of the motherboard schematics for this system! Struggling with a really strange and tough repair.
Thank you!Today, 07:07 AM -
Hi,
I have an HP 255 G8 that runs for as long as its battery holds charge but won't accept AC power.
I have partially diagnosed the problem and the issue seems to be that there is no ACDRV output from the BQ24735 to turn on the two input MOSFETs. The 24735 has a VCC of 19.57 V, the ACDET input is at 2.93 V and the REGN 6V LDO is outputting 5.98 V, so everything looks good - but ACDRV is stuck at 28 mV.
I've already replaced the 24735 and both input MOSFETs and nothing has changed.
I'd appreciate some suiggestions as to what to try next.Yesterday, 08:45 AM -
Dell Latitude 5590 ST FH1MNQ2
DDM80 LA-F411P REV 1
pwb mp3pg rev A00
Can you help me?
Thx...Yesterday, 04:37 AM -
Hello people. I trying to repair my welding machine oerlikon citomig 180mp hpf and there is a little board with blown stuff.The problem is i cant identify the value of the blown resistor and diode. Any suggestion?05-18-2024, 01:22 PM
-
Hi,
Does anyone have schematic for Dell Latitude 3420 (Cyborg L14)
i need part number for the circled component
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tDell Latitude 3420_LI.jpg Views:\t0 Size:\t1.90 MB ID:\t3274232","data-align":"none","data-attachmentid":"3274232","data-size":"custom","height":"973","title":"Dell Latitude 3420_LI.jpg","width":"730"}[/ATTACH]...Yesterday, 02:03 AM