Hello good.
The screen went black after updating bios from the hp page.
When I have unzipped the files I get 5 files .bin and I don't know which one to choose.
My laptop is an hp 15-bs127-ns and the s/n: CND8125KMX
I have also received the CH341A usb but I cannot locate the chip on the motherboard either.
Thank you very much, you do an incredible job.
Best regards
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