Hi Everyone,
Please, I have a MacBook Pro A2338 M2, board number : 820-02773. The speakers and the microphone of the Mac are not working and I need assistance in fixing.
UR730 got damaged and short-circuited the motherboard. After removing the shortened IC; before and after putting the new one I ordered, the speakers [specifically the other one not affected by this IC] and the microphone are still not working. I do have sound through a Bluetooth speaker device or when I connect a headphone with microphone to the jack 3.5mm input. Also, media files do not play unless a...
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-
04-14-2024, 12:00 PM
-
Hello,
I own an MSI Z370 Krait Gaming mobo but with the last bios update I unfortunately bricked it, so I'm searching the BIOS .bin dump file for reflash the eeprom (I already have a C431A Programmer).
I've just subscribed in this forum and I hope someone can help me to get out of this situation, it's really frustrating because I can't find anywhere this bios.
Thanks!Today, 01:14 AM -
friend please clean me this bios x1 carbon type (21-CB) SN PF-21RQ94F4 nm-d961 rev 0.2 no display thank you...Today, 12:50 AM
-
[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
Serial : PF2J6378[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
Serial : PF2J6378[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
...Yesterday, 02:54 PM -
hello.
I came across this thing and im not sure what it is exactly, I have never seen such thing before.
I know it gotta be some kind of diode with Drain, Source and Gate1 and gate2
It resides in AM/FM module and im measuring 200ohm across D and S.
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"705","title":"image.png","width":"782","data-attachmentid":3256012}[/ATTACH]hello.
I came across this thing and im not...Yesterday, 03:05 PM -
Hi.
I got dead one.
3VALW is just pulsing then goes down. i removed the jumper PJ402 and it suddenly stays up but PG pin on that IC is around 0.5v and droping.
There is no obvious shorts. Wierd thing is that on the other side of the PJ402 i have 1.4V from somwhere ...
Injecting 3.3v there draws 300mA and nothing is heating up.
the ic is SY8386BRHC_QFN16 (kinda uncommon here - so i do not have a spare to test it)
any ideas to check before i order a few of these?04-17-2024, 01:47 PM -
Hi guys.
I own Alienware 17 r3 6820HK GTX 980M.
I purchased it recently tried some gaming (Rise of the Tomb Raider, Serious Sam) and after 10-15.min games freeze, but I could hear audio from game.
Now I am not yet at home, but when it happens I do get separate window error message and will post it later.
Then again there are moments when I could play for like an hour and no errors.
From my experience reading about this issue, this means my GPU is dying, correct?
I installed most recent nVidia drivers.
Temp of GPU while gaming is max 76 C, but usually around...Yesterday, 12:07 PM -
Hello everyone, I come here in search of wisdom and hope.
I got this laptop with charging problems, apparently it charged ok while turned off but it would not charge while powered on, anyways I was doing initial measurements looking at the voltaje on the ID Pin, it is a 135W DC Adapter and the pin actually measured 1.9V that looks ok, anyways, while doing that, I accidentally shorted the ID pin DETECT(ID) with one of the 20V pins, sparkles and it automatically killed the TVS Diode PD102, and also made a cute burning hole on the middle of the KBC or EC chip UE1, it is a IT8227E-128,...Yesterday, 01:04 PM -
[INDENT]Hey everybody, got that specific notebook, bought it second hand. There was no ssd inside I placed the new ssd and tried to start the laptop but the only thing I get when I start up is a black screen and the keyboard is lighted up and changes the colors. No fan spinning ( but the downside is getting warm so the cpu is working I guess) and the led for charging the battery is on. Can't boot into the bios via f2. It's now looking like I bought a brick and got scammed.. can anybody help me out with this problem please?[/INDENT]...Yesterday, 02:01 AM
-
Hi, everyone. First post of an actual repair. I'm a technician but a complete newbie with laptops.
So I got this Dell Inspiron to play with.
No charger, so I connected to my bench PSU.
The laptop also didn't include: hard disk (I added one of my own for testing, see below) and wireless PCB (but I doubt this could have anything to do with this particular failure).
------What it did (and didn't do)------
1) I turned it on and it powered on. Powered down in 2 seconds by itself.
2) Removed RAM, changed slot. Same...04-04-2024, 12:39 PM
-
hello.
I came across this thing and im not sure what it is exactly, I have never seen such thing before.
I know it gotta be some kind of diode with Drain, Source and Gate1 and gate2
It resides in AM/FM module and im measuring 200ohm across D and S.
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"705","title":"image.png","width":"782","data-attachmentid":3256012}[/ATTACH]hello.
I came across this thing and im not...Yesterday, 03:05 PM -
Hello,
I own an MSI Z370 Krait Gaming mobo but with the last bios update I unfortunately bricked it, so I'm searching the BIOS .bin dump file for reflash the eeprom (I already have a C431A Programmer).
I've just subscribed in this forum and I hope someone can help me to get out of this situation, it's really frustrating because I can't find anywhere this bios.
Thanks!Today, 01:14 AM -
friend please clean me this bios x1 carbon type (21-CB) SN PF-21RQ94F4 nm-d961 rev 0.2 no display thank you...Today, 12:50 AM
-
[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
Serial : PF2J6378[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
Serial : PF2J6378[B]Lenovo Thinkpad L14 G2 [/B] [B]L14 (type 20U5, 20U6) Laptops (ThinkPad) - Type 20U6 ryzen 3[/B]
turn on but keep biping and not booting no access to bios.
...Yesterday, 02:54 PM -
Hi All,
Laptop: ASUS F15 TUF Dash FX517ZC-HN114W
Context: When I was out the house my partner hard shutdown laptop while BIOS was updating, so my son has no working laptop now. Also as a result I know the BIOS on the chip is messed up so I can’t extract it using the ch341a and use it to perform the method explained on site to modify an update downloaded from the ASUS website to get the BIN to flash.
If anyone can help with a BIOS BIN/ROM file for this laptop, I would be forever in your debt! Thanks if you can help!
Assuming it is less than 2MB as...Yesterday, 02:43 PM -
Hi All,
I have a Vizio E320-A1 which lost sound and picture. The power LED comes on and stays on but nothing else works. I am not able to power it off unless I unplug it.
Here are the voltages when the power is on
1 - 5.25
2 - 5.25
3 - 0
4 - 4.8
5 - 25
6 - 25
7 - 0
8 - 0
9 - 0
10 - 12
11 - 12
12 - .9
13 - .5
[ATTACH=JSON]{"data-align":"none","data-size":"thumb","title":"2024_04_19_13_08_IMG_2008.jpg","data-attachmentid":3255895}[/ATTACH][ATTACH=JSON]{"data-align":"none","data-size":"thumb","title":"2024_04_19_13_08_IMG_2009.jpg","data-attachmentid":3255896}[/ATTACH][ATTACH=JSON]{"data-align":"none","data-size":"thumb","title":"2024_04_19_13_08_IMG_2010.jpg","data-attachmentid":3255898}[/ATTACH][ATTACH=JSON]{"data-align":"none","data-size":"thumb","title":"2024_04_19_13_08_IMG_2011.jpg","data-attachmentid":3255899}[/ATTACH]...Yesterday, 11:33 AM -
Hi all,
Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.
Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second...04-18-2024, 03:15 PM -
Hello everyone,
I'm trying to fix a small LG TV with wierd issue.
So I check that the display is OK by fashing a lamp at the screen. LCD is okay OSD is showing up.
Now since the BL is dark, I disconneted the BL from the mainboard and I injected voltage to it with my blacklight tester.
The BL turns on, the tester shows around 80V. So the led strips are okay it seems.
Now I started to suspect the BL driver IC which is a MP3378.
I have a donor board (dead cpu) with the same IC, so I swapped the driver IC but it did not solve the issue.
...Yesterday, 07:59 AM -
Hello,
We have this set here in our shop that is not ginving sign of life besides red light that is blinking one time after pressing the button and nothing more... After detaching the mainboard from the PSU (this set has separate board thank god?! or not...) the backlight comes on. After reattaching nothing besides red light.... Can anyone from the forum help me here? Thank you in advance. Here's a link with images of the mainboard and the memory IC's that are on it.
Regards, Norbert!...04-17-2024, 06:54 AM -
Hi guys.
I own Alienware 17 r3 6820HK GTX 980M.
I purchased it recently tried some gaming (Rise of the Tomb Raider, Serious Sam) and after 10-15.min games freeze, but I could hear audio from game.
Now I am not yet at home, but when it happens I do get separate window error message and will post it later.
Then again there are moments when I could play for like an hour and no errors.
From my experience reading about this issue, this means my GPU is dying, correct?
I installed most recent nVidia drivers.
Temp of GPU while gaming is max 76 C, but usually around...Yesterday, 12:07 PM