Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Yes I tried with the jumper or without the jumper already, same. tried win 10 and win 11. tried second IC as well ( I ordered two just in case from mouser)
did you flash it with the original charger plugged in, or the 5v one? or without any of them?
and your machine is C930 as well right?
thank you...
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Thank you so much for the input!
As suggested, I ordered a 5v usb-c charger with 3A and finally charged the battery up to 80%.
downloaded the firmware to flash, but it encountered errors, tried couple times and installed studio x86 as well, but ended up with same error.
it says
Updating flash row 20....
[Error Code 17] retrying....
Updating flash row 20....
[Error Code 17] retrying....
Updating flash row 20....
[Error Code 17] retrying.......Last edited by rtcomputer1; 10-25-2023, 08:10 AM.
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Re: Lenovo yoga c930 NM-B741 Doesn't boot or charge USB type-C controller issue.
Hi there,
Can you please elaborate how to flash the chip to and make it work?
I had the exact same issue, shorted on old 4226. ordered one from digit key but doesn't output CCG4_VBUS_C_CTRL_P1, CCG4_VBUS_C_CTRL_P2
seems like issue with no firmware in the chip.
so i jumped the wire from pin 9 to u38/u227 to force the IC to output the CTRL signal
then when I connect the charger, it shows 5v(through usb-c amp meter)...
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