My [B]W26361-W84-X-02[/B] motherboard starts but don't show image (no logo screen neither bios). Because, I have two of them I desoldered the bios chip from the no working motherboard and I soldered it to the working motherboard and the motherboard works OK, so the bios firmware isn't the problem. Below I took some measurements from the no working motherboard when is power on. Also, I replaced the RAM and didn't work again (maybe some pins from the RAM slot don't have the right voltage?). I replaced and the bios battery, and I made reset on the bios and again the problem...
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-
Hello to everyone.
My [B]W26361-W84-X-02[/B] motherboard starts but don't show image (no logo screen neither bios). Because, I have two of them I desoldered the bios chip from the no working motherboard and I soldered it to the working motherboard and the motherboard works OK, so the bios firmware isn't the problem. Below I took some measurements from the no working motherboard when is power on. Also, I replaced the RAM and didn't work again (maybe some pins from the RAM slot don't have the right voltage?). I replaced and the bios battery, and I made reset on the bios and again the problem...05-23-2024, 03:51 PM -
Hi everyone,
I've got a Lenovo Legion 5 15IAH7 with no post/no boot issue.
The mainboard is a NM-E241 Rev 1.0
Now I am searching for the BIOS chip so I can reflash it.
But I have some difficulties to identify the correct chip. The schemantics somehow are not really helpful for me (I am a beginner with Laptop schemantics)
I found 3 Winson chips and one GigaDevice chip as you can see on the screenshots.
My guess its the W25Q128JVSIN (UB3) because it is the biggest from all.
I attached the pages of the schemantics from the...Today, 01:31 PM -
Hello, I'm trying to remove the password from an HP Elitebook 650 G10. It's motherboard has two chips, a 32mb spi (W25Q256JVEN) and 32mb ec (GD25B256EYIG). I have created a dump of each, but don't know which one(s) to patch. Could someone point me in the right direction or just patch it for me?...05-29-2024, 06:29 PM
-
Hello,
someone have schematic for asus R540L :
motherboard 1633 CM -4 94V - 0 E162264
Thanks a lot05-28-2024, 01:42 PM -
hello
I am looking for two ics on this mb:
1st marked 947 and secound sot23-5 marked 5af8b
thanks and regards...Today, 04:32 AM -
Goodnight
I need PWM ASP1000RM datasheet,layout , any image.
thanks for help Yesterday, 02:33 PM -
I am trying to downgrade my bios on my Alienware so I can undervolt & overclock my CPU, and overclock my ram. I need to get to bios 1.2.2 for this. Dell doesn't allow downgrades, and their bios file is an exe compiled in c++, so I can't decompile it easily. I am wondering if I can flash the bios manually using a usb flasher. I would like to know if this is possible, and if so, where the bios chip would be. I know flashers are pretty cheap and the bios chip is 8-pin. There are two of these chips only when I open the back panel of the laptop. I'm not sure if there are any on the other side of...05-17-2024, 03:34 PM
-
[B]Lenovo Ideapad Flex 5-14IAU7 working bios[/B]
[B]Lenovo Ideapad Flex 5-14IAU7 working bios[/B]
...Today, 02:22 AM -
Hello
I have model AHL50/abl52 LAC710p - ac120ns. It doesn't turn on after connecting the battery. The battery is charging correctly. I remove the battery, restart the bios by pressing the start button for 30 seconds without a charger and it works. I connect the battery, press the start button and it does nothing.
When it is on and I connect the battery, I reset it and it works and detects the battery.
I have measured some voltages according to the schematic and they are correct.
Can the BIOS be corrupted?...Today, 11:37 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 everyone,
I've got a Lenovo Legion 5 15IAH7 with no post/no boot issue.
The mainboard is a NM-E241 Rev 1.0
Now I am searching for the BIOS chip so I can reflash it.
But I have some difficulties to identify the correct chip. The schemantics somehow are not really helpful for me (I am a beginner with Laptop schemantics)
I found 3 Winson chips and one GigaDevice chip as you can see on the screenshots.
My guess its the W25Q128JVSIN (UB3) because it is the biggest from all.
I attached the pages of the schemantics from the...Today, 01:31 PM -
Hi,
I have this laptop HP x360 1030 G2.
Battery is charging well, the laptop powers on the CPU gets warm but nothing on the internal screen or hdmi.
The fan is spinning at full speed.
Any idea ?
I just asked for a schematic i cannot find it.Yesterday, 05:25 AM -
Hi all,
Model: HP Pavilion 14-ce3010nh 8BV97EA
Board number: DAG7ALMB8C0 - G7AL REV C
Issue: I have an HP Pavilion 14-ce3010nh 8BV97EA laptop. When plugged into the charger, it turns on, but there is no display, the fans do not run, and the processor gets slightly warm. Unfortunately, I haven't been able to figure out what the problem is. I've reflashed the BIOS twice without any success. No post. Already tried out with another ram stick with no luck
I measured the voltage with the HP turned on in red, and I measured their resistance with the HP turned off in green....Yesterday, 04:10 AM -
Hello, I'm trying to remove the password from an HP Elitebook 650 G10. It's motherboard has two chips, a 32mb spi (W25Q256JVEN) and 32mb ec (GD25B256EYIG). I have created a dump of each, but don't know which one(s) to patch. Could someone point me in the right direction or just patch it for me?...05-29-2024, 06:29 PM
-
Dear Members,
This laptop used to work with a 19v 3.4A adapter.
After 4 years of using it, now, the adapter's output voltage drops to 17v when windows loads up. Then the laptop suddenly turns off.
Today, I have connected a 19.8v 4.5A adapter to this laptop. Then the adapter's output voltage dropped to 19.4v but the laptop worked fine.
In addition, I noticed that the cpu power coils get warm to about 50'C but the mosfets are cool.
All the voltage rails on the mainboard are fine without any reduction except for the 19v rail. All the ICs and coils on the mainboard are...Today, 01:36 AM -
Hello
I have model AHL50/abl52 LAC710p - ac120ns. It doesn't turn on after connecting the battery. The battery is charging correctly. I remove the battery, restart the bios by pressing the start button for 30 seconds without a charger and it works. I connect the battery, press the start button and it does nothing.
When it is on and I connect the battery, I reset it and it works and detects the battery.
I have measured some voltages according to the schematic and they are correct.
Can the BIOS be corrupted?...Today, 11:37 AM -
Hello! help find bios for asus x1403z mb( x1403za)
S\N R2N0LP01B939074
ORIG DUMP...Today, 06:07 AM -
Hello, I have a hp that turns on slowly, I put a different bios, but I can't update it, report bios fail. Fortunately, I saved the original dump, if you want to help me.
motherboard abw70 la-c531p rev 1.0
model 17-N001NG
product M7W40EA#ABD
serial CND5310ZD3...Yesterday, 05:05 PM -
Going to replace op-amps in a guitar amp jcr072d
so TI versions have suffix D IP etc. There didn’t seem to be an explanation of these anywhere. I think they indicate the physical pin characteristics but what do they represent- anyone have a list.05-29-2024, 03:06 PM -
Hi guys, I have this macbook a1278 which doesn't have any image on the display, but when I turn it on I hear the chime.
I found the L9008 choke open and reset it.
When I turn on the macbook I have about 3v on pins 3 and 4 of the display so everything is ok but I still don't have the image.
On the backligt pin 21 and 22 I have 0v but the fuses are all ok.
What can I check?
I tried another display from a macbook a1278 but from the previous year and it still doesn't work.05-29-2024, 02:17 AM