Hello,
I have a A1706 with 820-00923-A board. The laptop came in with non-working keyboard. I bought a new top-cover with keyboard and transfered everything to the new topcover.
Since then the macbook will not charge or power-up. Before replacing top cover, I started the macbook to test, and it worked fine apart from keyboard. Then shut it down and did replacement.
This is what I measure so far:
Resistance from F7000 to ground is 123 Ohm on pin 1 and 2
PPBUS_G3H = 0,79v
PPBUS_HS_CPU = 0,79v
PPBUS_HS_OTH5V = 0,79v
PPBUS_HS_OTH3V3...
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-
05-21-2024, 02:06 PM
-
Hi all,
I have lenovo thinkpad x250 which turn on directly when I plug the adapter but does not display.
Motherboard: VIUX1 NM-A091 rev 1.0
This is original dump:...Today, 04:52 AM -
Hi,
i'm doing some experiments to update my ME with different combinations of IUPs, but i cannot find a RGN ME of my current version 16.0.15.1522 Pre.
Can you help me to clean the ME data of my current bios dump from [I]initialized [/I]to [I]configured[/I], so that i can extract and rebuild via FIT later? I have tried myself several times but due to lack of necessary knowage still unsucessful...
Thanks in advance!
Serial Number 0001761029
SKU Number 1234567#ABA
Feature Byte 475K6J6S6b7B7M7Q7U7W7maBapaqauawbUbXbhcAfAfPguhKhZjhk8mEmwn7nVngpnpqpr.he...Yesterday, 12:35 PM -
i have uti 260b when i turn it on , it stucks on loading screen , how can i fix this problem ?Yesterday, 04:10 AM
-
Good morning, can anyone send me the "Boss audio BX-45" diagram or check the acronym of the Q3 and Q4 transistors. Because from the previous repair I find myself (Q3 2N5551) while (Q4 SS8050) and it doesn't seem correct to me. Can anyone help me thanks.Today, 04:12 AM
-
Hello.
As someone suggest i bought this EV2400 clone battery programmer. Now i have one battery that need to check, but i cannot find topic with guide.
So what program should i use and how to check that battery?Today, 12:00 AM -
Looking for a schematic for this amp to help solve no output problem.
Power input ok no shorts, signal tracing for me is why I could do with a schematic.
thanks in advance...05-25-2024, 02:31 PM -
hi all
i have samsung np550: ac adapter with not working but with battery working.charging ic bq735
vcc :19v
acdet:3.1v
acok:0v
regn:6v
i changed charging ic,I/O controller and mosfets
whats my problem?
boardview:
schematic:Yesterday, 09:54 AM -
Hi guys, I have this macbook a1278 which doesn't have any image on the display, but when I turn it on I hear the chime.
I found the L9008 choke open and reset it.
When I turn on the macbook I have about 3v on pins 3 and 4 of the display so everything is ok but I still don't have the image.
On the backligt pin 21 and 22 I have 0v but the fuses are all ok.
What can I check?
I tried another display from a macbook a1278 but from the previous year and it still doesn't work.Today, 02:17 AM -
Hello everyone,
I have an ASUS Vivobook 14 OLED M3401QA which is not posting. Currently when plugged into power/turned on the power indicator will illuminate and the battery indicator will flash white roughly once every 3 seconds. Leading up to this it would sometimes turn on and then other times not turn on, furthermore it also showed a screen saying "new cpu installed, fTPM/PSP NV corrupted or fTPM/PSP NV structure changed" and then a screen telling me to recover the bios however it is no longer even posting at this stage.
The diagnostics steps I have attempted...05-25-2024, 02:34 PM
-
Hi guys, I have this macbook a1278 which doesn't have any image on the display, but when I turn it on I hear the chime.
I found the L9008 choke open and reset it.
When I turn on the macbook I have about 3v on pins 3 and 4 of the display so everything is ok but I still don't have the image.
On the backligt pin 21 and 22 I have 0v but the fuses are all ok.
What can I check?
I tried another display from a macbook a1278 but from the previous year and it still doesn't work.Today, 02:17 AM -
Hello.
As someone suggest i bought this EV2400 clone battery programmer. Now i have one battery that need to check, but i cannot find topic with guide.
So what program should i use and how to check that battery?Today, 12:00 AM -
Hi,
i'm doing some experiments to update my ME with different combinations of IUPs, but i cannot find a RGN ME of my current version 16.0.15.1522 Pre.
Can you help me to clean the ME data of my current bios dump from [I]initialized [/I]to [I]configured[/I], so that i can extract and rebuild via FIT later? I have tried myself several times but due to lack of necessary knowage still unsucessful...
Thanks in advance!
Serial Number 0001761029
SKU Number 1234567#ABA
Feature Byte 475K6J6S6b7B7M7Q7U7W7maBapaqauawbUbXbhcAfAfPguhKhZjhk8mEmwn7nVngpnpqpr.he...Yesterday, 12:35 PM -
Good morning, can anyone send me the "Boss audio BX-45" diagram or check the acronym of the Q3 and Q4 transistors. Because from the previous repair I find myself (Q3 2N5551) while (Q4 SS8050) and it doesn't seem correct to me. Can anyone help me thanks.Today, 04:12 AM
-
First things first please random moderator don't delete my thread i know there is another one but that one is dead and bugged and i could not post there so DON'T DELETE ME. Thank you
.
Now then i have a Corrupt BIOS for this laptop (Yes i am sure it's a bios problem . like 100%)
Laptop HP 840 G1
PCID : A3009DD10203
Serial : 5CG5150C67
Motherboard : [B]6050A2560201-MB-A03[/B]
Service Tag : Nope
(Dump extracted by RT809F)
Thank you in advance Have a great day .First things first please random moderator don't delete my thread i know there...
Today, 02:47 AM -
Hi all.
This notebook was showing no signs of life.
I removed the FH52M LA-J891P mainboard and found that there was 19V at the DC jack.
However there was zero volts on the two PRB2 and PRB46 resistors immediately after the two polarity protection MOSFETs (PQB11 & PQB12).
If I remove the PQW1 MOSFET, the 19V rail starts working, and I can turn on the unit - at least I get the fans, and the power light comes on, when I simulate the power button being pressed. No display.
I tried replacing the MOSFET with a new one, but again no voltage on the...Today, 12:33 AM -
Hello, I have a Surface Pro 4 1724 Core i5 8Gb, 256Gb, SNID: 048876262353.
It turns on but remains on a black screen, with the logo and a red stripe with a padlock at the top.
It doesn't get past this screen and I can't enter UEFI either.
I have tried several "bin" files from the forum and they work, the OS loads but the touch does not work.
Here is my original dump file.
Please Help Me...Today, 02:20 AM -
hi all
i have samsung np550: ac adapter with not working but with battery working.charging ic bq735
vcc :19v
acdet:3.1v
acok:0v
regn:6v
i changed charging ic,I/O controller and mosfets
whats my problem?
boardview:
schematic:Yesterday, 09:54 AM -
Dear all,
I forgot my BIOS password of my Surface Pro 3, I searched for solutions for a long time and knew that by using FPT to dump my bios to bin file and using decryptor, I can get my BIOS password.
Now I have a problem that I am unable to dump my BIOS into bin file.
My Surface Pro 3 currently runs on Ubuntu 22.04, with Secure Boot enabled and Boot From SSD Only.
I searched for FPT but there is no Linux version and none of them work.
I hereby request a copy of Intel Flash Programming Tool for Linux x64.
I would really appreciate it if anyone...Yesterday, 11:18 PM -
Hello.
Have this zotac rtx 30090 trinity 24gb that have no detection. i flashed bios and now have detection but mods, mats, nvmt not work. shows me no card and no memory. Even something like bad vendor ID
In windows 10 GPU-Z detect card but shows missing bios and other stats.
i try even gigabyte bios that others use to because bigger TDP, but it not work
any hint?...Today, 01:35 AM