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Old 11-16-2021, 07:56 AM   #1
DrFalken
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Default HP 250 G5: shutdown after 4-5 seconds

Hello !

model: HP 250 G5 W4N09EA
motherboard: BDL50 LA-D703P

This laptop turn on, fan spin and then shutdown after 4-5 seconds, no signal on monitor.
I've already changed PSU and flashed BIOS.
Light in DC socket is solid white.
PJP1: 19.53V

When ON:
BIOS PIN 8: 3.35V, 20 Ohm (to GND)
PL202: 2.90V
PL14: 1.69V near PCZ42, 0.3V rapidly drop to 0 the other side
PC78: 19.53V
PL8: 5.08V
PL9: 3.35V
PL11: 1.35V

What can I check ?

Thank you !!
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Old 11-16-2021, 09:26 AM   #2
mayss
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Program the bios with specified file with the ME-Region cleared and describe motherboard reaction. Without a battery RTC should rum off/on approximately 3 times before the image appears on the screen.

Last edited by SMDFlea; 11-16-2021 at 09:53 AM.. Reason: Not bios requests section.Bios removed
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Old 11-16-2021, 10:04 AM   #3
DrFalken
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Quote:
Originally Posted by mayss View Post
Program the bios with specified file with the ME-Region cleared and describe motherboard reaction. Without a battery RTC should rum off/on approximately 3 times before the image appears on the screen.
BIOS flashed but has the same issue.
Turn on, fan spin for 4-5 seconds then switch off and nothing more
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Old 11-17-2021, 04:02 AM   #4
lapfix
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Hope that you clean me your dump with official tool....do you have schematic/Brd of this motherboard !
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Old 11-17-2021, 04:07 AM   #5
DrFalken
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Quote:
Originally Posted by lapfix View Post
Hope that you clean me your dump with official tool....do you have schematic/Brd of this motherboard !
I've flashed the bios provided by mayss
Attached the schematic of this board.
Can't find anywhere boardview of this MB
Attached Files
File Type: pdf LA-D703P.pdf (1.71 MB, 12 views)
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Old 11-17-2021, 04:22 AM   #6
lapfix
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Post your old dump please : https://www.badcaps.net/forum/forumdisplay.php?f=40
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Old 11-17-2021, 04:28 AM   #7
DrFalken
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Quote:
Originally Posted by lapfix View Post
Shoud I open a new thread there or can I post it here ?
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Old 11-17-2021, 04:36 AM   #8
lapfix
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Default Re: HP 250 G5: shutdown after 4-5 seconds

new thread asking for clear pwd
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Old 11-17-2021, 04:45 AM   #9
DrFalken
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Quote:
Originally Posted by lapfix View Post
new thread asking for clear pwd
Ok, done https://www.badcaps.net/forum/showthread.php?t=100961

Edit: thank you, flashed the bios with ME cleaned but nothing has changed (fan spin for 4-5 sec. then shutdown, no signal)

Last edited by DrFalken; 11-17-2021 at 05:48 AM.. Reason: Update
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Old 11-17-2021, 09:31 AM   #10
DrFalken
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Default Re: HP 250 G5: shutdown after 4-5 seconds

Tried both lapfix and SMDFlea BIOS on that thread but nothing has changed.
FIY same behaviour show up also if I completely remove the BIOS chip (fan turn on but shutdown after 4-5 seconds)
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