Search Result

Hi.

I'm learning about fixing computers and have received a dead Huawei D14. It has a nearly fully charged battery in it (16.5v) but no charger(USB-C). Without the battery connected, these are the ohm readings I'm getting.

3.3v coil - 25 ohms
5v coil - OL
The other 3 coils on the board are showing

250 ohms
45.3 ohms
4000 mega ohms

I'm assuming the 3v is shorted maybe?

When I power the laptop on, it shows as dead. No CPU heat, no picture and no fan. However I noticed the 3.3v and 5v coils are showing the right...

Hi to all, this laptop came with no signs of life, no battery chargin and no start.
I found that the main 19v rail was almost shorted, it measured around 7 Ohms , then searching better I found a shorted MP86945A DrMOS (between Drain and Source) that converts the 19 volts into the PCH core voltage...
I was going to chuck the towel, but I had a new same DrMOS then decided to solder it in, then I connected the power jack and the system now powers almost on, all the voltages rise but the CPU core and VGFX core.
Externally I only see that keyboard backlight lights up for 2 seconds,...

good day experts!
i have huawei matebook d14
DAH98NMB8C0 REV C HF

the laptop works normaly when using it and charging
the problem is when i shutdown the laptop and not using it, the part in the picture with red circle
becomes so hot you cant even touch it, and it drains the battery quickly
i cant find schematics for this laptop

can someone tell me what is this part so i can replace it...

Hi, I am new here

I am trying to identify a component that was burnt on this board. I can't seem to find a good image of what this was.

I will upload here the best i can get but ill start with the unit itself.

Its a Huawei Matebook D14 Ryzen 7 4700U Variant
The board is a DAH98AMBAD0 Rev D

I have a few pictures that may help us find out, (I tried digging online but i can't seem to find the value. Maybe someone can help me out here)


Here's the full size board for your reference.(attached below)

Here's the...

i have HUAWEI MATEBOOK D14 (DAH98NMB8B0 REV: B HF, i need a boardview please to check the connectivity of some part in cpu controller area. thank you...

Huawei MateBook D14 – DAH98NMB8B0 REV:B HF, anyone have it?...

Hi,

I am new here, but i hope i can get help for this.

can you help me find out what this burnt component?

This is a Huawei Matebook D14 Ryzen 7 4700U.

We can't find a schematic on this but maybe someone can at least tell us the value of this burnt chip so we can order or find a replacement. Currently, this laptop board has no power/no charging

A little help will definitely be appreciated.

Thank you!


...

HI,
I need the schematics for the Huawei Matebook nbb-wah9p with m/b DAH98MB38B0 rev: B HF, I think the other technician missed a component in the power section, in fact now the laptop boots (I wrote a new bios) but the battery charging does not start.
Thanks everyone in advance.

Got hold of this HUAWEI MATEBOOK D14 (DAH98NMB8B0 REV: B HF) intel i5 with 8gb ram. My friend told me that she is using the unit for 2 hours, then sudden black screen, she plug the adapter hoping it's just battery issue, charge the unit for a while. nothing even charging light. charging adapter is ok.

SYMPTOMS: No power, no charging lite, no sign of life

WHAT I DID: open the unit, visual inspection, check for burnt components, looks clean, no burn or corroded components, When charging the unit i got 19volts at the charging pin. i notice a over heating component...

This specification for the Huawei MateBook D14 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the D14 boardview and D14 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Huawei MateBook D14...

This specification for the Huawei MateBook D14 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the D14 boardview and D14 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Huawei MateBook D14...

This specification for the Huawei MateBook D14 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the D14 boardview and D14 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Huawei MateBook D14...