Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
the cypd4226 FW for yoga 920 is available on Lenovo website as exe file :
[url]https://pcsupport.lenovo.com/ca/en/products/laptops-and-netbooks/yoga-series/yoga-920-13ikb/downloads/ds501972-type-c-firmware-for-windows-10-64-bit-yoga-920-13ikb-yoga-920-13ikb-glass[/url]
1-cypd4226_920_version.exe
2-cypd4226v55.exe
If your laptop is still turning on with a battery, try to run those files but first you have to solder the new chip first. Maybe it will work....
TranaRiparDis
Member
Last Activity: 02-03-2024, 07:22 PM
Joined: 03-26-2021
Location: Montreal
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
According to this thread on cypress forum :
[url]https://community.cypress.com/t5/PSoC-5-3-1-MCU/How-to-get-usable-HEX-firmware-from-psoc-device/m-p/211409[/url]
it is possible de to relative the firmware as text data. Do you know if text data can be useful?Re: Lenovo yoga c930 NM-B741 Doesn't...p/211409[/url]Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
I never done this before but from the research i made you need to have PSoC programmerLeave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
How do I know when it is a bios problem ?Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
...Last edited by TranaRiparDis; 04-08-2021, 05:00 PM.Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
I charged the battery and I was expecting the PC to turn on but it seems there is another problem.
The power Led is blinking 3 times. Do Anyone know what does that mean ?
...Last edited by TranaRiparDis; 04-08-2021, 03:40 PM.Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Force charging
😈
of couse not sleeping and leaving this on...Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Lenovo forum is suggesting to install Thunderbolt Drivers :
[url]https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/Lenovo-yoga-c930-USB-type-C-firmware/m-p/5074139?page=1#5299933[/url]
I don't think intel Drivers will be enough.Re: Lenovo yoga c930 NM-B741 Doesn't...#5299933[/url]Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Thank you very much for the help I appreciate it.
I received the part and soldered on board but the Vbus is still locked at 5V. I took some measures without the piece on board and there was 0V On Vbus. So I think there is communication between the charger and the chip on CC.
I asked a question on the Cypress Forum too about the firmware :
[url]https://community.cypress.com/t5/USB-EZ-PD-Type-C/I-ordered-a-CYPD4226-40LQXI-for-my-laptop-does-it-work-out-of/td-p/272812[/url]...Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
I tried to contact Lenovo today with chat and phone they were not helpful they said that my device is out of warranty so they can not help me. I asked a question on their forum for the firmware :
[url]https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/Lenovo-yoga-c930-USB-type-C-firmware/m-p/5074139?page=1#5299430[/url]
I don't expect they will answer me. This guy asked a similar question and no one answered him :
[url]https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/yoga-c930-usb-c-not-charging/m-p/5029831?page=1#5299399[/url]...Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Unfortunately, This is the only chip on the motherboard and it seems that this repair is not possible with a blank chip. Not sure if it is worth spending more money and time on this laptop. I will try to find a preflashed cypd4226 for this laptop if I don't find maybe I will try out a blank chip and share my experience.Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
I am still a newbie to USB C PD and I did some research about the suspect but I found it quit difficult after seeing the 600 pages of USB C specification document. But I understand some basics.
some notes I took about the topic back then
Before I order the cypd4226 from mouser, Do you think maybe Lenovo is running a custom code on this chip for their laptop? or it should work normally out of the box....Leave a comment:
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Going through the datasheet again I saw my mistake
This device need PD 3.0 not PD 2.0. Do you think I may created more damage by installing the Cypd4225 ?
CYPD4226 is not available at digikey or mouser. Do you know other than Aliexpress to buy this part? I don't want to wait a month for this part.
Thanks for your remark....Leave a comment:
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Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Hi everyone,
This is my second board level repair. My first one was on an Iphone 6 changing Usb controller 2 years. I didn't expect the phone to work again after the mess I did last time but it did and I was super proud. This time it seems more complicated.
When I first opened the laptop and plug it in I felt that the Cypd4226 (Usb type-c port controller) is getting hot so I remove it from the board and I found out that VCCD was shorted to GND on this chip so I ordered a new one but I didn't found the 4226 so I took the 4225. According to the datasheet they have... -
Re: Lenovo C930-13IKB EYG70 NM-B741
My first contribution
had to buy it
enjoy...Leave a comment:
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Re: Lenovo C930-13IKB EYG70 NM-B741
unfortunately, it's not the sameLeave a comment:
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Re: Lenovo C930-13IKB EYG70 NM-B741
Me too I need the schematic for this laptop. What's the problem with yours ? mine doesn't charge at all.Last edited by TranaRiparDis; 03-31-2021, 03:52 PM.Leave a comment:
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Re: New Members - please post your introductions here
I am like you all guys seeking to find the truth behind those components
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