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X1C6 charging problem: charging LED stuck "on" even unplugged & reports repeatedly unplugged/plugged
Hi.
I have recently a charging problem with my X1C6.
Yesterday, I have plugged the USB-C charger into the USB-C port.
Then Windows repeatedly notices that the charger was plugged, then unplugged, then plugged (many events in Windows Event Viewer) and the Thunderbolt software (in systray keeps crashing/restarting).
The problem continued even with the charger unplugged, even after a reboot.
The charging orange LED was stuck "on" even with the charger unplugged (also with the computer off):
I had to restart the computer and disable the internal battery in the BIOS to restore the computer to a normal state.
In the Windows reliability monitor, I can see many Windows Hardware Error (related to USB-C UCM/USCI system : LKD_0x1D4_COMMAND_TIMEOUT_9_UcmUcsiAcpiClient_UcmUcsiCx!UcmUcsiCx::CxDevice::UnrecoverableFailureEncountered) and many Thunderbolt software and services crashes.
The battery was already replaced due to another problem (random 0% charge level reporting).
This charging problem had happened with the old one and the new one.
Anybody had already encountered this problem ?
Do you think it's a rather a USCI/EC/BIOS firmware problem or a faulty hardware ?
I think I will ask a motherboard replacement under warranty.
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برچسب : نویسنده : lenovo1 بازدید : 366