Re: Asus n751jk -help- I need bios dump with clear me
Here.
And [URL="https://photos.app.goo.gl/QJP1Fj8jhvNrMBVC6"]video[/URL] of the power on. Also the power led is not as bright as the others, if you saw it no the video.Re: Asus n751jk -help- I need bios dump with clear me
Here.
And [URL="https://photos.app.goo.gl/QJP1Fj8jhvNrMBVC6"]video[/URL] of the power on. Also the power led is not as bright as the others, if you saw it no the video.Re: Asus n751jk -help- I need bios dump with clear me
Here.
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ninjanody
Member
Last Activity: 03-29-2024, 05:04 PM
Joined: 02-17-2020
Location: Athens
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Last edited by ninjanody; 12-02-2022, 09:05 AM. -
Re: Asus n751jk -help- I need bios dump with clear me
After flashing the bios, when i plug the power jack, the fan starts spinning for a second and stops. It does that several times and then the fan spins at full speed for 2-3 minutes and reboots.
Still no beep, no post, no leds on external keyboard. The onboard leds are on, but the power led is dim. Probably there is a short somewhere....Leave a comment:
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Re: Asus n751jk -help- I need bios dump with clear me
here...Leave a comment:
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Re: Asus n751jk -help- I need bios dump with clear me
sn: F1N0BC004902026
N751JK-T7042H...Leave a comment:
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Re: Asus n751jk -help- I need bios dump with clear me
I flashed the bios from this [URL="https://www.badcaps.net/forum/showthread.php?t=72186&highlight=n751j"]thread[/URL] (N751JKF1205.zip from cacla) but now it don't even respond to power jack inserted (no power led, charging led)Re: Asus n751jk -help- I need bios dump with clear me
I flashed the bios from this [URL="https://www.badcaps.net/forum/showthread.php?t=72186&highlight=n751j"]thread[/URL] (N751JKF1205.zip from cacla) but now it don't even respond to power jack inserted (no powerLeave a comment:
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Asus n751jk -help- I need bios dump with clear me
I need a bios dump for n751jk rv.2. The laptop is no responding to power button, but the led for power and charging are light up. -
Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Thanks. It was exacly after those values. I only have to find a way to save it in the new bios so it would not ask it again. For now i will type it..
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Hello again. The laptop seems to work fine but i can't figure a way to retrieve windows key from the old bios file so i can activate windows again. Does anyone knows how to read this from the old .bin file?Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Hello,
Due to illness i didn't had time to continue the troubleshooting for almost 2 weeks. After flashing the modo didn't do anythink exept powering on and no beep or led indication. Just about when my nerves was ready to snap, i had the idea to connect also the screen after the flashing, before the initial power on. It also did some restarts with no screeen indication and suddenly post with dell logo on the screen. It said something about mantainace mode and it asked for service tag. After...Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Also i measure the voltage in the coils while it was running and those are the measurements:
PL100 = 3,5V
PL101 = 5,3V
PL200 = 1,35V
PL301 = 1V
PL601 = 0,91V
PL603 = 0,98V
PL605 = 0V
PL700 = 0VLeave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
I haven't check about the abnormalities you mention yet, but i succesfully flash the bios by @smdflea and it no longer turn on and off in a second.
The first time it give me a fading power led, restart and run for ~8 seconds, restart again and running fan at full speed without displaying anything (also no power led on). I left it for almost half an hour but nothing change....Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
You are right about the MegaOhms. Sometimes we screw up on the basics.
I re-measure the PL100 Coil and the resistance to ground is 5KOhms. If i remove the power while it runs and measure it gives me 2KOhms and climbs slowly to 5KOhms. If i press the power button it jumps to 9KOhms and return to 5KOhms on release....Last edited by ninjanody; 02-18-2020, 05:24 PM.Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Also after a tip from a friend, i measure the resistance of each coil to the Ground. Maybe with this we can figure out if there is a short anywhere.
PL100 = 5 kOhms
PL101 = 65 kOhms
PL200 = 200 Ohms
PL301 = 70 Ohms
PL601 = 12 Ohms
PL603 = 6 Ohms
PL605 = 6 Ohms
PL700 = > 1 MOhms *There is probably a partial short there.Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
OK. I will go and buy a new usb flash programmer because the one i have is not compatible with this bios chip and try it when i return home. It would be great if a bios flash could solve the problem and the board has no short in any rail....Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
MEC1404-NU measurements.
Pin-31 = 0,09v
Pin-36 = 0,97v
Pin-41 = 2,91v
Pin-43 = 3,38v
Pin-56 = >1v instantly with power button
Pin-67 = >2,8v instantly with power button
Pin-71 = 0,12v
Pin-88 = 3,28v
Pin-89 = >2,4v instantly with power button
Pin-96 = 0,07v
Pin-122 = 3v
Pin-128 = 0,05v...Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
My assumption is based on that i don't have the +1,35VP & +0,675VSP anywhere.
For the measuring of MEC1404-NU i will report my findings at the evening when i return home.
Thanks for your suggestions....Leave a comment:
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Re: Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
No while it was just plugged in charger because it won't stay in power.
Also i must mention that some of the points that have 0V in power of, at the time i press the button switch, they show some power flowing for a second (for the second that the fan also turns)....Leave a comment:
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Dell Vostro 3559 AAL15 LA-D071P Rev: 1.0 (A00) Turn on and off in a second
Hello friends,
I hope someone will have a insight based on the symptoms, because it is driving me crazy. I have found the schematics and decide to check if i can fix it.
With charger and battery plugged, the led in front lights up until i press the power button. The fan starts and instantly (1-2 sec) stops while the led turns off.
If i press again in less than 3 seconds, nothing happens. After a while the led turn on again and i can repeat the above steps.
I am sure there is a short but i can't figure out where.
With my multimeter i have...Last edited by ninjanody; 02-17-2020, 04:59 AM. -
Re: New Members - please post your introductions here
Hello to all,
I am a new member and found this forum while searching solution about my laptop board problem. I found really helpful posts that give me a clue for what to look for. Hope that a community like this will grow stronger in time.
I am born in 1985 and i love electronics. I am married and i have 2 little girls. My occupations is It Manager and i am familiar with circuits.Leave a comment:
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