Hi everyone 😀,
I'm here today to ask for help with repairing the motherboard of a [B]Lenovo Legion Y540 17IRH[/B].
To give you some context, I'm passionate about computer repair so much so that I've invested in a lot of tools and started practicing on dead and old hardware. I've been learning how to solder and desolder components, mostly focusing on phone repairs.
Recently, I bought a broken Lenovo Legion Y540 17IRH for just €150, and there are two main reasons why I made this purchase:[LIST=1][*][B]I already own the exact same model[/B], but its plastic...
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by JBUU
05-19-2025, 07:35 AM
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Hello, please fix bios for my HP Omen
Motherboard DA0G3LMBCG0
i7-11400H + RTX 3060
SN: 5CD147D886
All voltages present, powers on but no display (also no reaction to capslock)...Today, 08:23 AM -
Hi,
if someone have asus m3400qa rev3.1 bios
Please share.
Thanks in advance.​Today, 09:46 AM -
Good evening everyone. I hope you are well i need to repair this bin Acer an515-58-78nn
serial number: NHQLZEU00B33600C293400
if anyone can help me i will be grateful
model:ACER NITRO 5...Today, 09:34 AM -
Need boardview for Nitro 5 on motherboard IH50A LA-978P Rev 1A.​
Acer Nitro 5(AN515-58-78NN) 2023/09/04.Today, 09:25 AM -
Hi,
Device : Laptop
Brand : HP
Model : Omen 17-ck0013sa
Board number : DA0G3LMBCF0 REV:F
Issue: Laptop turning on without picture, fans spinning, keyboard backlight on
Request : Bios repair or clean new bios​
Appreciate any help....Today, 04:38 AM -
Hello. Need a fresh look. MacBook shows no signs of life.
When connected to USB-C with the battery connected, the consumption is 20V/0.220A and PPBUSG3H=11V.
If you disconnect the battery, the consumption will be 5V/0.220A and PPBUSG3H=12.3V
PP3V3_G3H=3.3V
PP5V_G3S=0V
PP1V8_SLPS2R =1.8v =0v=1.8v =... cyclically
voltage around u7800 appears/disappears cyclically.Today, 08:59 AM -
Maybe now he decide to post... This forum is become so unreliable... I hope you see the attachment... So, I have newer cheap 830 dmm, and I am not happy with beeping mode. Its output is from IC directly, so he wont beep unless the diggit become too low. I want to beep function is thrully analog, like the old one, and think to atempt modification with insert beeping circuit. But, I dont know principle of reading such complex connector, so please if you can draving with red lines path that exist in beep mode... it will help me a lot....Yesterday, 07:04 AM
-
I have a Samsung TV 65" 2021 with One Connectbox SOC4002A BN64-04592A. The display simply turned off during operation, but the sound is still working!
Is there a chematic
​Today, 05:58 AM -
I am trying to repair my Samsung Chromebook Pro. There is no boot. Upon turning on, the screen is blank and there is no backlight. Power LED is blue. I tried refresh with power and esc refresh with power with no avail.
When I measure the 1.2V rail, it is pulsing. It will jump from 0 to 1.2V then 0 again. I replaced the 2 MOSFET and even power management IC and it is the same. Resistance from midpoint between mosfet to ground is 0.5 kOhm but it will show 250 Ohm first before jumping to 0.5 kOhm. So it feels like it was charging up some capacitor. Since MOSFET and IC was replaced, I...06-11-2025, 08:11 AM
-
Hi,
if someone have asus m3400qa rev3.1 bios
Please share.
Thanks in advance.​Today, 09:46 AM -
Hello, please fix bios for my HP Omen
Motherboard DA0G3LMBCG0
i7-11400H + RTX 3060
SN: 5CD147D886
All voltages present, powers on but no display (also no reaction to capslock)...Today, 08:23 AM -
I have a Samsung TV 65" 2021 with One Connectbox SOC4002A BN64-04592A. The display simply turned off during operation, but the sound is still working!
Is there a chematic
​Today, 05:58 AM -
i ordered a lot of caps from digikey to repair my xboxs. one thing i ordered was 50NXA10MEFC5X11-ND caps and i think they are not polarized. will this cause any kind of a problem? i really don't want to order new caps just because of this.Today, 03:09 AM
-
Hi,
Device : Laptop
Brand : HP
Model : Omen 17-ck0013sa
Board number : DA0G3LMBCF0 REV:F
Issue: Laptop turning on without picture, fans spinning, keyboard backlight on
Request : Bios repair or clean new bios​
Appreciate any help....Today, 04:38 AM -
Hello,
I'm looking for schematics or boardview for Lenovo L14 5 generation.
ThanksToday, 06:42 AM -
Hello, Need unlock BIOS password for HP 245 G10 MOBO PART NO: HOKIE22-MV-VGT-6050A3461901-MB-A01
Attached my backup file
SERIAL NO: 5CG4300CNT...Today, 06:42 AM -
iHi, I'm looking for the boardview of this board model to find the following component, it's marked as "Kdena" but I can't find anything, I wonder if someone can help me.​Thanks
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Imagen de WhatsApp 2025-06-16 a las 12.20.48_a791bb20.jpg","data-attachmentid":3660107}[/ATTACH]...Today, 04:24 AM -
Good evening everyone. I hope you are well i need to repair this bin Acer an515-58-78nn
serial number: NHQLZEU00B33600C293400
if anyone can help me i will be grateful
model:ACER NITRO 5...Today, 09:34 AM -
Need boardview for Nitro 5 on motherboard IH50A LA-978P Rev 1A.​
Acer Nitro 5(AN515-58-78NN) 2023/09/04.Today, 09:25 AM