Hi,
any one help me with generete / clear ME BIOS for HP FOLIO G4 1040
DA0Y0GMBAG0 REV G.
Old dump in attached file (8/16MB). Currently is black screen and CAPS LOCK and NUM LOCK 5 led blinks.
SN: 5CD9081D67
Thank you in advance....
Gigabyte_PL
Member
Last Activity: 12-16-2024, 03:02 AM
Joined: 12-10-2021
Location: Poland
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mon2[USER="295753"]mon2[/USER] I restored 0,5 ohm resistor.Leave a comment:
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You think about main meansure resistor 0,5ohm ? I replaced it with 0.10ohm because that was the only one I had. Unless you have another discovery in mind?
I add file "capacitor.png" I can't find this element on boardview but it's look little strange if its capacitor. It's near to LAN RTL8111H
β...Leave a comment:
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Mosfet #1
[B]source (1-2-3) & drain (5-6-7-8) -> 2,58M ohms [/B](negative probe on drain and pluse probe on source)[B] // 4,20M ohms[/B] (negative probe on source and pluse probe on drain)
[B]source (1-2-3) & gate (4) -> 4,7M ohms[/B] (negative probe on source and pluse probe on gate)[B] // 3,13M ohms [/B](negative probe on gate and pluse probe on source)
[B]gate (4) & drain (5-6-7-8) -> 7,5M ohms [/B](negative probe on drain and pluse probe on gate) [B]// 4,55M ohms[/B] (negative probe on gate and pluse probe on drain)
Mosfet #2
[B]source...Leave a comment:
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Yes, I confirm.
Check attached files....Leave a comment:
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Mosfet #1
source 0,02V up to 0,8V (up and down - it's unstable)
gate 0,02V up to 0,8V (up and down - it's unstable)
drain 19V
Mosfet #2
source 0,02V up to 0,8V (up and down - it's unstable)
gate 0,02V up to 0,8V (up and down - it's unstable)
drain 4,10-4,20V βLeave a comment:
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I connected service power supply without a battery. I don't have the original power supplyLeave a comment:
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After soldering, I checked all pins and everything looks good.
I checked again by measuring BQ24:
CHG_ACN - 4,15v
CHG_ACP - 4,15V
CHG_CMSRC - 0,7v UP T0 1,10V
CHG_ACDRV - 0,85V UP TO 1,4V
CHG_ACOK - 0,002V UP TO 0,05V
CHG_ACDET - 2,64V
CHG_IADP - 0,03V
CHG_SDA - 0,57V UP TP 0,9V
CHG_SCL - 0,56V UP TO 0,9V
CHG_ILIM - 0,02V UP TO 0,14V
CHG_LG - 0V
CHG_REGN - 6V
CHG_HG - 0,22V
CHG_LX - 0,22V
CHG_VCC - 19V
when I turn on power supply from the service power supply, consumption...Leave a comment:
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Hi,
I bought a BQ24 yesterday and replaced it now. The same situation - on the measuring resistor 4V.
Maybe new chip is damaged...βLeave a comment:
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Ok, I will buy new charger IC. I belivie BQ24800RUYT it's same that BQ24800RUYR? I checked and I saw different information in the packaging. Can you confirm ? Thanks.Leave a comment:
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Hi,
I replaced HDMI port and Panasonic MN864729, but this did not help to solve problem.
Before replacement, the effect is the same.
APU dead ? Can I check it ? How ?
βLeave a comment:
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After remove PR8918
ACDRV - 0,17V #4
Source and gate on first mosfet - 0,07V
I checked resistance of PC8916 and its value is 4.65 M ohms (measurement in circuit)Leave a comment:
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tHello [USER="295753"]mon2[/USER] ,
I again test it:
First mosfet:
[B]source & drain - 5,18M ohm
source & gate - 3,17M ohm
gate & drain - 4,83M ohm[/B]
Second mosfet:
[B]source & drain - 5,28M ohm
source & gate - 4,70M ohm
gate & drain - 7M ohm[/B]
Additionally, last time I replaced the first and second mosfet, but there was no change. I tested the original mosfet and all the resistance and test diode were fine.
I checked motherboard with a thermal imaging camera and only one...Leave a comment:
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mon2[USER="295753"]mon2[/USER] I'm counting on your help πβLeave a comment:
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I checked these resistors yesterday.
Today I tested again and here are the results:
Diode test:
R3013:
+3V - 0,440V
SMB0_CLK - 0,480V
R3020:
+3V - 0,424V
SMB0_DAT - 0,439V
Voltage test:
R3013:
+3V -0,5V up to 0,8V
SMB0_CLK - 0,5V up to 0,8V
R3020:
+3V - 0,5V up to 0,8V
SMB0_DAT - 0,5V up to 0,8V
Thank you for new boardview.
Additionally, I would like to mention that I make measurements on a motherboard removed from laptop case. Service power supply supplies power through...Last edited by Gigabyte_PL; 01-23-2024, 06:50 AM.Leave a comment:
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mon2[USER="295753"]mon2[/USER]
I'm probably having trouble locating the pull-up resistors. I have boardview but in a .pdf file and I cannot select these pins....Leave a comment:
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I confirm that last measurement was correct and the values ββare within the limits 0,5 -0,8VLeave a comment:
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Maybe IC charger BQ24 is damaged ? Can I check more to confirm it ? or maybe you have more idea to check
βLeave a comment:
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PR8901 - 0,002 up to 0,05V and I checked reststance -> 154K ohm after removing all power.
when I checked this resistor I had 101K ohm after removing all power.
βLast edited by Gigabyte_PL; 01-22-2024, 09:07 AM.Leave a comment:
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