Hello, I'm trying to repair an HP 27 Quanta N76 (DA0N76MB6E0 Rev E).
I only get 3.3V, 5V, and 1.05V; no other voltages.
I tried the BIOS and changed the KBC. The KBC self-programmed upon power-up after changing it.
The VR-On is missing for NCP81220, but 1.2V is also missing for DDR4, so 1P2V_PWRGD is low. SUSON or DDR_VTT_EN are not present on the DDR4 voltage regulator (RT8231BGQW). It seems the KBC isn't triggering these signals.
I'm using the Quanta N91 schematic, but there are too many changes that make it nearly impossible to measure signal...
Francisco.s
Badcaps Veteran
Last Activity: Today, 03:14 AM
Joined: 01-07-2013
Location: Madrid
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Thanks hoaca388, this bios works!!!
Now this laptop has video and boots from ssd or usb. Can't believe it. I have tried many dumps and none of them worked till now.
I shows an error now about Endpoint Security, but this seems easy to solve.
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Hi, need bios for HP ZBOOK 17 G6 DA0XW3MBAH0 REV H
It makes boot loop but no imagen, with win + esc keys, it tries to read the pendrive, but pendrive stops blinking for a few seconds and loops again.
Seems not to be any bios for this motherboard, but many for DAXW3EMBAF0.
Serial number: 5 C D 9 4 4 9 J V D
Thanks for your help.
...Leave a comment:
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Try this one.
Attached FilesThis work for me.
Thanks....Leave a comment:
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Hi SMDFlea, I have searched the forum using the motherboard code and didn't found it.
Thanks for your help....Leave a comment:
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Need bios for Dell Precision 3630 Tower, motherboard Pegatron IPCFL
The original one has auto-start but doesn't post and there is no video output.
serial number: k6ry2 a01...Leave a comment:
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Hi, a few days ago the IT5571E arrived, and after replaced nothing goes better.
The client doesn't want to wait, so nothing more at this moment.
Thanks to all that helps in this thread.Leave a comment:
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Hi, yes it is a IT5571E 128.
I 'm still waiting for the new chip.
Is there any issue with this chip?...Leave a comment:
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I've tested your bios without cleaning the me region, and nothing changes. I'm starting to think that bios is not the problem, but I will clean me region and test it.
I've ordered a new ITE kbc just in case it were damaged.
I hope next week the kbc will be replaced and the laptop working....Leave a comment:
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I will test your bios and let you know.
Thanks.Leave a comment:
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Hi SMDFlea, I have tested in windows 7 but doen't work for mi, even in compatibility mode and 640&480.
I have got it running the ITEM_20240227_22345_WIN_P14CFG.exe as is, in win-pe and looking at temp dir. It's a bit tricky because the __Samsung_Update folder is erased in no time.
This is what I get:
...Leave a comment:
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It's not my case, I have open the file via open menu.
I'm using a win-pe system running in a Vmware virtual machine.
Tomorrow I will tray in a real windows 10 machine....Leave a comment:
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Hi volinakis, thanks for your help.
I have just downloaded the same file from Samsung just in case yours were corrupted, and have the same content and same problem when open it with find_gz.21.
Seems this file is corrupted or have some anti-unpacking technique.
Here is the error it shows:
Is it the same error it shows for you?
I hope somebody have a trick to overcome this....Leave a comment:
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Thanks SMDFlea, seems not an easy job, but will tray and let you know.Leave a comment:
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Bad news from this Samsung, same problem, it reacts to power button but there is no cpu vcore and no voltage for ram.
Have no enable signal in pins 10/11 for dram pwm chip (TPS51486RJER)
First time it recives power with the modified bios, (image.rar) could see some pulses at pin 1 of flash chip. (seems that kbc reads its firmware from bios at that moment)
Could be that bios region is the one that is corrupted, but can't get a good bios from Samsung or internet.
I will update when there is some news with it....Leave a comment:
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Thans volinakis, I will test and post results....Leave a comment:
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Samsung Galaxy Book NP750XED
Hi, need bios for Samsung Galaxy Book NP750XED-KC4ES.
This board mounts a intel alder lake, and seems that the bios is corrupted.
I tried two versions of flash image tool 16, and shows some errors and can't open it.
This are the errors:
Command Line: X:\MEA\FIT 16.0.15.1531\fit.exe
INFO : Start decompose 'X:/MEA/samsung.bin' image.
INFO : MFIT version used to build the image: 16.0.15.1554
INFO : Generate layout dictionary <xpath, container wrapper>
INFO : Layout dictionary generated successfully
ERROR... -
The nm-d281 motherboard has another connector to read and write the main kbc.
I think you are right, the keyboard worked without using the programmer.
Thanks and regards....Leave a comment:
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Finally I have managed to read the IT8176 with Vertyanov programmer using the NM-D563 configuration. I've search on internet and found the following:
NM-D563 KB_pins=34 (JKB2) LEFT DOWN 08MM PD0=20 PD1=16 PD2=14 PD3=9 PD4=13 PD5=17 PD6=10 PD7=12 BUSY=23 STB=15 AFD=26 INIT=19 SLIN=18 KSI4=22 KSI5=21 FLASH=56 CHIP=IT8176FN-56A
This way I could read the chip and make a backup of its data. I have not write the chip, seems that it takes this data from bios when booting the first time.
This is the working backup:...Leave a comment:
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Hi reformatt, seems that the problem was the IT8176 was damaged or not being properly soldered. I have replaced with a new one and it is working perfectly. This one is from the same vendor, and received the same day as the other one.
I will do some tests and tell you more about the issue....Leave a comment:
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