Dell Latitude 7400 8FC8 16MB BIOS Unlock Request

[Alecs7]

Hello,

I have a Dell Latitude 7400, 8th Gen, with password locked BIOS, 16MB chip, please help me with unlocking the BIOS if you can.

I attach the dump here. Thank you very much....

[battery.12v]

Hello guys, Asus G512LI, came with 3.3V drop down immediately .... 5V was stable ... after search and work found that +3VSUS_MUX is the issue (caused by U4701A TUSB1146RNQR) , left off the ic .. 3.3V came up again stable ... after power on laptop turn on for 3 seconds and power off ... VCCcore raise 0.9V for 1.5 seconds and drop down all other voltages do same thing ... Ram voltage , Gpu voltages, concerning VCCGT 0V all the time

[benwaterson]

Hi All

Been a while since I have been here, and a bit rusty.

I have the above laptop motherboard that was working and now the charging circuit is faulty.

Have 19v in fine until it hits PU4403 - not shorts I can see and thermal cam reveals nothing.

I have swapped out the ISL9538 and also the two mosfets (PU4403 and PU4405). Have 2.8v at the power switch, which pulls low when pressed - charging light comes on and goes straight off

Below are measurements (pin names are per the datasheet for the ISL95338 (couldn't find one for ISL9538,...

[unimatrix93]

Dear forum,

I'm stuck with this old TV unit.
PSU: 17PW04-1
MB: 17MB62-1
Symptoms:
- Blue LED constantly blinking when connected to AC.
- Only sigh of life is beeping when touching the capactive buttons on the front.

Diagnostics so far:
Checked the PSU output voltages:
12V present
5V present altought its only around 4.2V
3V is present measured 3.4V.

I check TP 202 which is for the short circuit protection: 0.606V on diode mode

Since I met with some vestel models before with similiar symptoms...

[Pasglop]

Good morning
I am encountering a problem on an Asus X421EA card which no longer starts; I checked the voltages, the 5v and 3vd are missing, has anyone encountered this problem, I have been looking for several hours without finding the source of the problem. Thank you!

[clrscr]

please help me unlock password bios panasonic CF - SV1RDLVS
SN: 2BKSC68044
THANKS!...

[huzo]

First of all i haven't found the board number other then FLESSY2 G4227A A4227A etched under the DC in connector...

The problem is laptop does not charge the battery...Laptop works on battery and work on charger, but doesn't charge the battery... when off, it pulls 0.13A ,when turned on it pulls around 0.500A and has spikes 0.6-0.8 A when booting, i found that ISL9238H is the charging regulator and i replaced it with ISL 9538H and it's all the same...i checked all the passive components and all seem to be ok...

Anyone have an idea what to look for next? The battery...

[andresi]

cant display, can someone repair my bios?...

[hairulole]

Hi everyone, im looking for Asus X409MA rev 2.0 boardview. Is anybody have it? I had found Russian language website which is i couldn't understand. Hopefully somebody can share it with me. Thank you very much at first.

[wolfrose]

I received a .cad file for my laptop but don't know how to open it.

Any suggestion ?

[Xrious]

Got a TH-55FX600 that is showing no signs of life.

Outputs from the P board look good, but no 12V on the A board.

Very similar to [URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/110001-panasonic-tx-65fx623e-identidy-ic[/URL] but where Tibd has 3.3v on the EN pin I have nothing, no voltage at all.

Looking at the diagram for the IC I can see the enable is W_OPCTRL9, but I can't find a source for this, can anyone help please?

Stu

[ATTACH=JSON]{"alt":"Click...

[Josuerepara]

Does anyone have a 2twtt$ja bios. it's 1mb pls

[maleksa]

My Zoom R16 would not turn on. I checked for voltage rails and I found that 2 out of the 3 inductors had voltages.

L19 read 3.3v
L10 read 4.5v
L11 had no voltage readings

I need help in identifying IC10 which could be the problem. Really appreciate any help on this.
...

[Kuroneox]

Sorry for the inconvenience, I have a problem with an Asus, it turns on, it tries to start or the image freezes or it restarts, it doesn't let me put a system on it or put a disk with a system on it, it restarts them all, by chance I would have the Bios for this model

Asus Vivobook 16
Model x1605v
Model motherboard x1505va r2...

[gjgib]

Hello, need help identifying a DIODE that's right at the start of DC_IN line in this small IO BOARD. (DR1 08530-2 48.4AQ03.021).

[URL=filedata/fetch?id=3263943&d=1714682294][ATTACH=JSON]{"alt":"Click image for larger version Name:\ts-l1200.jpg Views:\t0 Size:\t45.5 KB ID:\t3263943","data-align":"none","data-attachmentid":"3263943","data-size":"thumb"}[/ATTACH][/URL]

I have the [B]boardview[/B] for this small board [URL="https://www.badcaps.net/filedata/fetch?id=3263942"]08530-2.rar[/URL]...

[shukys]

One member post a photo of a boardview for this model it means it is available, unfortunately he is banned so can't text him, tried to find everywhere but no luck...

[mrgumshot]

Hi all,

I've got a Lenovo ideapad gaming 3 15IMH05 with a black screen issue. I've tried a BIOS file which i saw in another post and changed some things in a Hex editor.
So i transfered the DMI info from my original BIOS to the one i got from the post. Flashed it to the chip and the laptop was booting again but very slow post.

After a couple of boots it went back to black screen again. Tried to flash the same BIN file on it which i used before but its staying at the black screen now unfortunately.

I hope someone can help me out. Attached is my [B]ORIGINAL...

[CyTECH ELECTRONICS]

I'm middle of doing this console and just wanted to ask about a component if someone seen one of these.It looks like a fuse or a coil but I measure nothing no resistance or anything.It's related to the hdmi section and connects ground to an ic.I'm a bit confused at this point.Anyone can confirm what it is?Please only need advice from who actually worked with one of these.Thanks

[Stretchx]

Hi, Looking for the MSI's MS-16W21 VER 1.0 Schematics boardview.
I already have the schematic.
I came across it on [url]https://www.repairlap.com/threads/msi-gf65-thin-10ue-ms-16w2-ms-16w21-boardview.23844/[/url] but it seems to be paid. Anyone have it for free?https://Hi, Looking for the MSI's MS...e it for free?Hi, Looking for the MSI's MS-16W21 VER 1.0 Schematics

[tyl85]

Hi, i have a lenovo V15-ADA
with broken onboard ram, i desoldered those ram chips and now i got Black screen, obviously you say 😂

Can someone disable the integrated ram by bios? this is original dump and motherboard details
thanks in advance...

[yasser toaamh]

hell me friends help me DELL SELEK N17P MB 18839-1 BIOS

[Faroks]

The Laptop is not booting, maybe because a failed Biosupdate.
No bootlogo, just the Fan and the lights starting.

I attached the Original Bios. I read it with a TL866ll Plus

Thank you

---- Edit.

Found the Clean bios in a other Topic, flashed... it said failed but its working now. Just had to set the Service ID and now its running fine.

[corrize]

[FONT=Calibri]Hello,[/FONT]
[FONT=Calibri]I have different sort of those little BGA chips (step down DC-DC, power management battery, …) I replaced 10 on differents mobile devices (no schematics) but I noticed often they can be dead but never shorted. I see some signs : burn marks, resistance drop by comparison with good board (40 KOhms to 1 KOhms for example)… but not easy to be sure of the diagnose. Because I can't access on all tracks (balls) with the meter.
Sometime, I know only after replacing chips.[/FONT]
[FONT=Calibri]Do you have tips for diagnose please ?[/FONT]...

[jaroslav.psenicka]

Hi all,

I have a Lenovo Yoga 13 Panasonic here, when powered[LIST][*]both fans spins (the sconds starts with a bit of a delay), no image neither on HDMI nor the display[*]most voltage rails seem OK (see image below, red labels)[*]resistnace to ground mostly seem OK as well (blue labels)[/LIST]the only suspicious is the 0.0V rail (2nd from left, top row)[LIST][*]the resistance to ground is rather low (1.9ohm)[*]when injecting the voltage (1V), it consumes around 200mA, seems OK to me (?)[/LIST]also tried new BIOS, no change
I can't find a schematics for the board - can some of...

[sertac545454]

[B][URL="https://www.asus.com/tr/motherboards-components/motherboards/prime/prime-b650m-a-wifi-ii/"]PRIME B650M-A WIFI II[/URL][/B]
I NEED THE BIOS DUMP FILE. BIOS CRASHED
[B][URL="https://www.asus.com/tr/motherboards-components/motherboards/prime/prime-b650m-a-wifi-ii/"]PRIME B650M-A WIFI II[/URL][/B]
I NEED THE BIOS DUMP FILE. BIOS CRASHED

[obelix24]

I have one strange issue with Macbook Pro 13" A1706 (touch bar) 4 TB ports
Issue is that all 4 ports are working but on one port only one side (when i rotate connector 180 degree there is nothing (ampmeter is not turned on at all) and charger (original apple) is put to protective mode, I have to unplug USB from the power brick to enable it again.

I've tried multiple USB-C ports (one one side all ports all sides work when i reconnect it to other side both ports work but one only on one side)

There is no issue problem on the board (no liquid damage, no damaged...

[MarkIV4]

Hi everyone, I hope I'm posting this in the right place. I'm new to this forum and I'm hoping you can help me out.

My Samsung Galaxy Book suddenly stopped working and won't turn on at all. I noticed that the component in the attached photo looks burnt out. I think it's a voltage regulator, but I can't find any information about this IC online. I've searched using the code on the chip, but I haven't been able to find a replacement....

[erico]

First of all, ive veen reading these forums for some time and its always veen very helpful, so i thank you all for this amazing comunity.

I have a lmq-2 13268-1 motherboard from a lenovo x1 carbon 3rd gen. And the MX25l12873f (U49) bios pin 8 is not getting voltage.

So far these are my diagnostics:

When given 19v trough power adapter, consumption reads 0.003 amps for about 5 seconds then nothing.

When power button pressed same result, and i get three green blinking lights from the pwr btn led. But foesnt turn on.

If i plug the...

[barber]

我有一张华硕tuf-gtx1660-o6g显卡，自用突然不显示黑屏，好奇我想修一下，想找个板视图，有没有好心人可以给我一份，谢谢！板号CG165PI R1
I have an ASUS tuf-gtx1660-o6g graphics card, and suddenly it doesn't display a black screen for personal use. I'm curious and want to fix it. I want to find a board view. Is there any kind person who can give me a copy? Thank you! Board number CG165PI R1

[LarrySabo]

This laptop powers on, keyboard lights for 1-3 seconds then powers off with charger LED flashing. I have the boardview and U3050 (9661A) or connected components have a short. I'm cautious about injecting voltage to locate the short so a schematic would be helpful. Attached is picture of the area....

[garretofriviaaaaa]

Hello, Basically a customer tried updating his mini PC using a USB stick but it bricked the computer. I've tried flashing a new chip with a CH318A programmer using neoprogrammer and a ROM file from minisforum's website. From what I have read on the forum here, there isn't a readily available guide on how to serialize an existing bios to the motherboard. I have a dump from the original BIOS chip, I did an additional one and did the fc /b command to make sure no discrepancies were found. The machine model number is Minisforum UM780 XTX, machine serial is MC495UU78XQQMQA0089, Board Serial is F78SD784048A1050804....

[Mufasa]

Hello everyone,
I was wondering if anyone has a source for slg5ap1445v...

Thanx in advance

[MicroSMD Lab]

Hello, I have a bricked Eluktro laptop, can't seem to find a bios dump. I would like to have the ME cleaned please. The bios download from the Clevo repo has a file with a ".12" extension that is the same file size as the original bios but it is "configured" as opposed to "initialized" according to ME analyzer. I tried it and the laptop still did not boot.
Can anyone help me clean ME or repair this bios please? I attached both files....

[iprotech]

Started with a surface pro 5 repair with battery not fully disconnected and ended with dead touch. Tested with a new touch module and new cable and there still is no touch.
Measured touch power rails 1v8 and 5v, both are present.

From schematics and boardview it seems like everything happens over SPI, the i2c is NC
The MOSI goes directly to the CPU through a 10ohm resistor
MISO also goes to CPU through a 10 ohm resistor but also goes through some buffer/level converter chip (VC125) for SPI sniff im guessing for panel brightness level.
I do not have a scope,...

[b4rdock]

hi i have a dell Dell Inspiron 5755 i have try many battery like original new one

issue battery charge to 255% and if disconnect charger lapton turn off
Dell Inspiron 5755
Model: P28E
st: FTMG462
motherboard number: AAL12 LA-C142P

bios attached
can help

regards...

[igeektech]

asus vivobook n7600p bios file needed. device stays black screen with idle power and does nothing. attached is what i believe to be the original bios file.

sn -[LIST][*]N4N0CX06Y616151[/LIST]

• asus vivobook n7600p bios file needed. device stays black screen with idle power and does nothing. attached is what i believe to be the original bios file.
  
  sn -[LIST]
• N4N0CX06Y616151[/LIST]

asus vivobook n7600p bios file needed. device stays black screen with idle power and does nothing. attached is what i believe to be the original bios file.

sn -[LIST][*]N4N0CX0...

[eniac22]

Hello,

i have the board BN41-02152 with shorted IC with marking 1G1W (IC203) can you tell me with what can replace?

Thanks...

[vendak]

HI
I have a problem with the lcd turning on after a power outage.
Panel backlight ok. Voltage main and PS too.
Response to the remote control is fine.
The led control flashes.
Main board Y21 NIKE_BUILT_IN
CODE:BN41-02844A
BN94-16869A
Thanks for the ideas
Vendak75...

[OnRepair1]

Hey im looking for some help, this laptop starts but the fan dosen't spin even when hot, the fan works fine.

Bios dump for Asus S533E
SF114-34-C0B1
Motherboard: X521EA REV: 2.0
SN: M3N0CV22Z36213D
Here's my BK bios

Thanks......

[stomanata]

Hi,
this system has mainboard HT-DB120/THA25.
Display working and also i can switch modes, but there
is no audio.
I noticed that resistor R100 is heating up.
I found wiring in attach, but there is diferences.
1. In this wiring 1st pin of resistor is attached to diode bridge and
second pin is attached to Collector of PQ5. On PCB is not the same.
2. Resistor R100 is labaled as 10ohm, but it is 22ohm. Even colour
code (red, red, black, gold) show 22 ohm.
3. Emitter of PQ5 must go to PIC4 (7812), but this also is not true.
So, it seems...

[rediii]

- it is urgently recommended to update the bios to the latest version to prevent this series fault!
- repaired 20 of them: in some cases all three chips have had to be replaced
- all parts ordered here: mouser.com

- exploded next gen fet (mainly used usb c port - replace it) - 20 times (15 times this was the only fault)
TPD4S311YBFR
TI USB Interface IC
US HTS:8542390001 ECCN:EAR99 COO:PH
- exploded ov protection ic
FPF3380UCX
onsemi Power Switch ICs - Power Distribution
TARIC:8542399000 ECCN:EAR99 COO:PH
-> you can use...

[yop16]

In my work have 30 laptops with the model Dynabook c-40-G-126 and I need install dual boot linux and windows but the last TI change the bios password and not have the current password, is posible reset the password??

[cdsh009]

Hi,
P/N: 08N1 18Y3Q00
REV: 2.1
UMA
8mb bios
thanks...

[Stefan86]

Hello,

I have some Notebook Getac V110 G5 with locked bios.
Please unlock.
S/N RM203V0061...

[cassius]

I'm looking for ways to ensure that my desktop computer automatically powers on once the power is restored after an outage. I've heard suggestions about shorting the front panel I/O connector on the motherboard or shorting the SMPS 20/24 pin to accomplish this. However, I'm uncertain if these methods are both effective and safe.

[Supradin]

Hi everyone. I'm new on this things, this is my first amplifier after I start offering repair service almost for free, just for learning purpouse

So I have a amp that is going to protection mode. I saw that if I remove the ribbon cable which sends from main board B+,B- and signal for amplifiers card, is not going to protection mode.

So, from that ribbon cable y disconnect everything but b+ b-, and amp goes again to protection mode. So my guess was something is wrong in the amp board.

I disconnect all transistors and amp is ok.
After, I connect the...

[vanromic]

Hello! I'm trying to resuscitate a Macbook that the local tech gave up on. I have the board view and schematic and have the main board out of the case.

Of the 4 usb-c ports, 3 cycle at 5V - they all go up to about 1.5A, then seem to switch off, back to 5V 0A, up to 1.5A, and off again. The cycle lasts a few seconds - maybe 3s.

The 4th port doesn't cycle and draws ~0.5A at 5V consistently. It seems it's the port linked to U3100 - it's on that side of the board and is the port closest to the battery and the CD3215C00 chips.

I've read that the CD3215s are...

[mazloum]

Hi, I need bios for :
HP model 22-A140XT
Serial: 6CN6150F3G
PRODUCT NUMBER: N1N09AAR#ABA
the problem is no display with all voltages ok...

[KLINIK ELEKTRONIK]

Hello everyone
i need bios LENOVO LEGION Y470S-15IMH
SN:MP1TC9JM
Code board :GLY5U LA-J931P REV 1.0

Problem no display.
this my bios no display👇

thanks for help 🙏...

[tccyo22]

Hey all,

I've got an ASUS laptop (Asus X409DL Rev 2.0) that had a little liquid spill on it however the majority was on the daughter board for the I/O stuff which is connected over a ribbon cable which I have disconnected for now. A small bit of liquid did however get onto what schematics and boardview show is a DC step down IC; a Realtek RT8249CQGW - markings: 2N=. There is no short on the main power rail as I have 19v with the charger plugged in however I have no other power, standby or always on rails anywhere on the board. Looking at the datasheet for this IC I want to sanity...

[issam19dz]

Hi everyone,

I'm hoping to get some help finding a suitable replacement for the MOSFET EMF30N02J. I'm currently using this component in B450 AORUS M motherboard

Any information or advice would be greatly appreciated!

Thanks, [Issam Seb]

[jasakl]

Dear community,

i have searched the internet but i dont found a working solution for my problem:
I have about 150 hard drives (mostely from hitachi 160gb HTS543216L9SA00) from Pansasonic CF-19 MK3 Notebooks.
All devices had a BIOS Password and HDD encryption enabled.

Now i try to reuse the HDDs, but i cant format them. I already tried windows Diskpart with argument "attributes disk clear readonly" but it says "cant delete" and i tryed several partition and low level formatters (like partition wizard, AOMEI and Easus).
But all of...

[sauce]

Hi,

First I am french sorry for my english.

I bought this LG OLED 65C6V sold because when we press the power button I can hear the click of power board relay, the red light blinks one time then returns red.

The seller said he try to replaces the 3 cards (power + motherboard + t-con) but still the same issue (but the cards were not buyed at then same seller).

I test power suply in standalone (bridges between 3v5 and PWR_ON, 3v5 and DRV_ON, 3.5V and 12v_ON and I have all stable voltages (3v5, 12VM, 24VS, 12V t-con, 24V t-con.

So I...

[ojoil]

Hello,
I read through this post:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/88324-samsung-un49mu7000f-dead-no-power/page2[/url]

It seems like my tv is exhibiting similar symptoms. I have backlight when only the power supply is connected, but I didn't test much further.
The main board is slightly different (BN94-12402R) although it is stamped the exact same...
Board is stamped:
MODEL: KANT_M_BUILT_IN
CODE: BN41-02568B
MODEL: BN41-02568

I wonder...