Re: Yoga 700 14-ISK
Hi again.
Does the IT8396VG come preprogrammed, or I should tell the seller which machine/board, så he can programme it?
Thanks
GIFixed
Senior Member
Last Activity: 04-24-2023, 05:45 AM
Joined: 09-19-2019
Location: Copenhagen
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Re: Yoga 700 14-ISK
UPDATE 19.12.2019:
We now received the new EC, changed it and the result:
Not shorted anymore, but does not turn on. Only two LEDs on the side of the motherboard/PC are lit. Does not ewspond to holding down power button for 10 seconds.Leave a comment:
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Need: ASUS UX32LA-LN Schematics and boardview
Hi,
Anybody have the Schematics and boardview for ASUS UX32LA-LN ?
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Re: need bios for 820-2507-A A1312 (EMC 2309)
EMC 2309 A1312 Core2 Duo does NOT have ME region?
It is not EFI?
If you drop the BIOS bin file on ME analyzer, it says: "File does not contain Intel Engine firmware"
If it really does have ME region and ME firmware, how do we clean ME region in this model?...Last edited by GIFixed; 12-03-2019, 05:10 AM.Leave a comment:
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Need schematic for HP Folio 13 QAZ60 LA-8043P
Hi,
Please, I need schematic and boardview, if available,for:
Laptop: HP Folio 13
Board: QAZ60 LA-8043P
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Re: Yoga 700 14-ISK
I didn't have the time to try your suggestion.
By the way, we have bought a new IT8396VG from AliExpress. Will arrive in 3 weeks.
I will post a result when the new one is tested....Leave a comment:
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Re: Yoga 700 14-ISK
On pic, red arrow indicates pin shorted to ground.
Green line indicates these three pins are on board connected together to the +3VLP (100 mA) LDO output line from PU201.
When one of these pins is shorted on the EC itself, the +3VLP is shorted to ground.
Click on picture to see it clearly....Last edited by GIFixed; 11-19-2019, 06:54 AM.Leave a comment:
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Re: Yoga 700 14-ISK
Removed the EC and the 4 ohm short is gone.
The EC in photo is flipped on its back vertically (up-down). Left-right is correct....Leave a comment:
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Re: Yoga 700 14-ISK
I will try removing the EC IC and check underneath.
Attached photo of the EC getting worm in a specific area about the "v" in Lonovo word on it.
The other photo showing type number.
Could not find datasheet for it. And buying over eBay/Aliexpress takes too long time to arrive.
Anybody knows if I can buy this chip in Germany or in Europe?...Last edited by GIFixed; 11-19-2019, 03:44 AM.Leave a comment:
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Re: Yoga 700 14-ISK
Reflowed the EC (IT8396VG). Still shorted, mabye 5 ohm to ground.
Any other boards using this EC?Leave a comment:
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Re: Yoga 700 14-ISK
So, I worked more on this motherboard today. Here what I found:
The PU201 generates 3.3V internally. This 3.3V is connected to the +3VALW_EC thru the zero ohm resistor shown on attached photo. From the other side of the resistor connected to EC and reset circuit for the EC: diode, resistor and capacitor.
This 3.3V was shorted to ground by the EC. When I removed the 0 ohm resistor, it was back on. But the 3V output of the PU201 was not available.
If I inject 3V after the resistor, the EC gets hot where I marked with...Leave a comment:
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Re: Yoga 700 14-ISK
Thank you for your reply.
I would post photos, but I should recharge the camera first.
Sorry, I missed the MB code:
[B]BYG43 NM-A601[/B]
After posting my question, I came across a russian forum mentioning the AWV5KC and AWW5LB from a different laptop. One member answered these two should be:
[B]SY8286B (3V) and SY8286С (5V)[/B].
I could not find data sheet for SY8286B nor SY8286C, but for SY8286[B]A[/B]
Using that data sheet, I found following for SY8286A:
[url]https://cdn.badcaps-static.com/pdfs/24b9ee7ede1b1b603ebd2c3aa9aa7b22.pdf[/url]...Last edited by GIFixed; 11-13-2019, 12:42 PM.Leave a comment:
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Yoga 700 14-ISK
Yoga 700 14-ISK
Dear all,
Our customer came in with a lonovo yoga 14-ISK, that "suddenly died".
No history.
No water damage.
It seems the RAM socket was changed: flux residue and not 100% perfectly aligned.
On some power jumper there are 9V generated from AC-IN:
PJ201 9V
PJ204 9V
PJ802 9V
PJ803 9V
PJ301 9V
PJ801 9V (AT BACKSIDE)
PJ103: -0.94V (AT BACKSIDE)
PJ302: 0V
PJ101: 19.3V
PJ102: 7.3V -> PF101 (X MARK, OK) ->... -
Re: HP EliteDesk 800 G2 BIOS corrupted by HP bios update
I no longer have this G2 machine. The seller did exchange it for me with a better G3.
Thanks for your help....Leave a comment:
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Re: Lenovo Yoga 2 Pro 20266 Stuck in sleep mode
Sorry for late update.
I have reflowed RAM chips - did not help.
I have reflowed CPU - did not help.
Now work on this machine is stopped. It will come back to customer urepaired
Thanks for all your support and help.Leave a comment:
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Schematics needed: HP Elite Desk 800 G2
Hello,
Anybody have schematics for HP Elite Desk 800 G2?
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Re: Yoga 260 endless Power Cycling
I have Lenovo Yoga 2 pro too, it power cycles. All power rails are OK. Tried different BIOS flash files. One one bios make it not power cycling but doesn't turn fully on. No POST.
Do you have a working BIOS dump for this machine?
My thread is:
[URL="https://www.badcaps.net/forum/showthread.php?t=79526"]https://www.badcaps.net/forum/showthread.php?t=79526[/URL]
KvnTM and piernov helped me a lot.
Their last suggestion was to reflow onboard RAM. I did not...Leave a comment:
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Re: Lenovo Yoga 2 Pro 20266 Stuck in sleep mode
Sorry, no updates yet.
My chef should reflow it for me (I am not so trained at reflowing). But he is busy.
I will update when it is done.
Thanks for all your help and patience....Leave a comment:
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Re: HP EliteDesk 800 G2 BIOS corrupted by HP bios update
Thanks.
Could it be the EC bios that is corrupted?...Leave a comment:
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Re: HP EliteDesk 800 G2 BIOS corrupted by HP bios update
Nobody has an answer to why there are two flash chips on this elite desk 800 g2 model?Leave a comment:
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