dell Inspiron 3581 EDI72 LA-G714P

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Would it be possible to patch or edit the second file to fix the issue with the fan? Or at least to get it to work at a constant speed. Assuming that's the only problem that comes with this version.

The specifics on this area are way out of my league, so I might be making wrong assumptions.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Your backup had version 08CE EC firmware,i asked you to try 08CF first as i suspected it could have been flashed with the wrong EC (the dell bios updater has both EC versions) .As the fan isn`t working i would flash 08CF back again (the EC controls the fan),and give it a bit more time to boot.See what happens
.

I flashed 08CF version this time. I pressed the power button and let it do its thing.

First thing that happens is a warning on every boot about using under wattage charger. This isn't true as this charger is 45/60w, and the laptop takes up to 60.

Then after pressing continue (using the keyboard) it shows a different screen where it initializes all devices and than checks for hardware problems. The mouse pad doesn't work, and I only seen the fan spin once after the "fan initialization" message.

After that it just keeps restarting, initializing and checking thee hardware, in a constant loop...
The fan doesn't seem to be able to spin.
I did restore all bios settings to default

[SMDFlea]

Re: dell Inspiron 3581 EDI72 LA-G714P

So today I flashed the second file, commencing with 08CE.
So now everything seems fine, except the fan doesn't spin.

These files had the ME Region blank. Does the machine write the missing information after the first boot?
And about the fan, is it possible to get it working with one of the two files?
Thank you som much the time you take to look into my issues.

Your backup had version 08CE EC firmware,i asked you to try 08CF first as i suspected it could have been flashed with the wrong EC (the dell bios updater has both EC versions) .As the fan isn`t working i would flash 08CE back again (the EC controls the fan),and give it a bit more time to boot.See what happens
.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Try these 2. Try the one with 08CF in the title first, if it doesn`t work try the other,08CE, and if that one doesn`t boot I don`t think the problem is with the bios.

So today I flashed the second file, commencing with 08CE.
I put it all back on and it had the same behavior as last time.

It didn't look like it was going to boot, so I started taking measurements again on the power lines. Halfway through it, I noticed heat coming off the APU... I put the heatsink back on, pressed power, and was greeted with "Dell Support Assist" product information screen. Rebooting it took me straight into Windows.

I'm still dizzy over the fact it worked, I had my doubts over only being a bios issue. Maybe I was too rushed testing the new flashed bios as SMDFlea proposed. And maybe the first of the two files also worked.


So now everything seems fine, except the fan doesn't spin. It did before showing me that screen though, but before I dive into anymore assumptions, could you please tell me how should I proceed?


These files had the ME Region blank. Does the machine write the missing information after the first boot?

And about the fan, is it possible to get it working with one of the two files?


Thank you som much the time you take to look into my issues.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

When you try each one, give it about 5 minutes because each one has clean ME firmware. It might restart 3 or 4 times on its own.

Okay. Early tomorrow I am going to test and retest each file and once the flash is soldered in the motherboard I'll press the power button and wait for 5 minutes before trying to switch it on again.


As far as I remember, the power cut off, and didn't come back on, so I don't think the flash was being updated with the machine's information, but is worth to give it try.

[SMDFlea]

Re: dell Inspiron 3581 EDI72 LA-G714P

I haven't got the time yet to test all power lines, but tomorrow is gonna be the day.

Quick update: I tried the 08CF file, and the behaviour changed. When plugged the charger, the solid white led comes on, and slowly fades away, in about 1 second. But when I press the power button I can see that the screen backlight lights up, although the laptop only stays on for 2~3 seconds. No flashing codes, no capslock light. This is the first time I flash a file which doesn't return the flashing code or no power at all.

I will try the other file when I test the lines.

When you try each one, give it about 5 minutes because each one has clean ME firmware. It might restart 3 or 4 times on its own.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Try these 2. Try the one with 08CF in the title first,if it doesn`t work try the other,08CE,and if that one doesn`t boot i don`t think the problem is with the bios.

I haven't got the time yet to test all power lines, but tomorrow is gonna be the day.

Quick update: I tried the 08CF file, and the behaviour changed. When plugged the charger, the solid white led comes on, and slowly fades away, in about 1 second. But when I press the power button I can see that the screen backlight lights up, although the laptop only stays on for 2~3 seconds. No flashing codes, no capslock light. This is the first time I flash a file which doesn't return the flashing code or no power at all.

I will try the other file when I test the lines.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Try these 2. Try the one with 08CF in the title first,if it doesn`t work try the other,08CE,and if that one doesn`t boot i don`t think the problem is with the bios.

okay, I will do it later today. Also I am going to recheck every power rail to see if anything else is not right or if I missed something.

Thank you for your support, I will update the state later today.

[SMDFlea]

Re: dell Inspiron 3581 EDI72 LA-G714P

I tried with this file and got the same result as before, no power, no LEDs.

Any suggestions?

Try these 2. Try the one with 08CF in the title first,if it doesn`t work try the other,08CE,and if that one doesn`t boot i don`t think the problem is with the bios.

EDIT: 08CF removed,does not work with Inspiron 3481
.

[hoaca388]

Re: dell Inspiron 3581 EDI72 LA-G714P

I tried with this file and got the same result as before, no power, no LEDs.

Any suggestions?

Maybe EC has a problem. Looks like it's an I/O chip.And are you sure all the power blocks on the mainboard are good?

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Ok, the last try.

[ATTACH]254011[/ATTACH]

I tried with this file and got the same result as before, no power, no LEDs.

Any suggestions?

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Ok, the last try.

[ATTACH]254011[/ATTACH]

I tried "11.8.55.3510_CON_LP_C_NPDM_PRD_RGN_outimage.bin". It doesn't show any LEDs, not even the dc one. I'm going to try this one now and come back straight away.

[hoaca388]

Re: dell Inspiron 3581 EDI72 LA-G714P

I flashed the file on post 12, multiple times, but when I put the ic back and plug the charger, the led on the jack repeats the sequence "3 AMBER, 5 WHITE", until I press power, which spins the fan for about 10 seconds, back to the led code. This time, the led indicator on the CAPSLOCK key is always on.

I compared it right after flashing and it was identical. I tried reading the ic after attempting to boot with it, and comparing it with your file shows differences, is it not meant to be the same as the machine didn't boot?

On my last verification, this was error line I got:

"Verification error on address: 0x000462B0, Device: 0x47, Buffer: 0xFF"

I looked at both files side by side and from what I could gather the differences between them goes from offset 000462B0 to 000480C0.

Please let me know of any other information I can provide.

My last dump after flash is in attachment.

Ok, the last try.

[ATTACH]254011[/ATTACH]

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

post the service tag number thats on the case, and the motherboard part number

service tag: B91L1W2

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

I noticed that my first post which I copied from a thread I made doesn't include the information about the board.

EDI72 LA-G714P
Rev: 1.09(A00)

Flash: W25Q128J
Programmer: CH341A MiniProgrammer
Software: NeoProgrammer 2.2.0.10

[SMDFlea]

Re: dell Inspiron 3581 EDI72 LA-G714P

Please let me know of any other information I can provide.

Post the service tag number thats on the case, and the motherboard part number

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

I saw your dump have proplem with ME region, so i taken other Me region and chaged it.

I flashed the file on post 12, multiple times, but when I put the ic back and plug the charger, the led on the jack repeats the sequence "3 AMBER, 5 WHITE", until I press power, which spins the fan for about 10 seconds, back to the led code. This time, the led indicator on the CAPSLOCK key is always on.

I compared it right after flashing and it was identical. I tried reading the ic after attempting to boot with it, and comparing it with your file shows differences, is it not meant to be the same as the machine didn't boot?

On my last verification, this was error line I got:

"Verification error on address: 0x000462B0, Device: 0x47, Buffer: 0xFF"

I looked at both files side by side and from what I could gather the differences between them goes from offset 000462B0 to 000480C0.

Please let me know of any other information I can provide.

My last dump after flash is in attachment.

[hoaca388]

Re: dell Inspiron 3581 EDI72 LA-G714P

Hi, should I try to flash this dump? I tried the one on post 8 yesterday, but the machine returns with the same issue.

Have you seen anything wrong with my dumps? I am still not sure where the problem lies.

Thank you for your attention

I saw your dump have proplem with ME region, so i taken other Me region and chaged it.

[Umadbro]

Re: dell Inspiron 3581 EDI72 LA-G714P

Hi, should I try to flash this dump? I tried the one on post 8 yesterday, but the machine returns with the same issue.

Have you seen anything wrong with my dumps? I am still not sure where the problem lies.

Thank you for your attention

[hoaca388]

Re: dell Inspiron 3581 EDI72 LA-G714P

please let me know of any other information i should provide.