Re: Dell Inspiron 3421 USB Port not working
D+ and D- in all usb ports are ranging from 0.2v to 0.5v.
all option of usb are enabled on the bios....
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Re: Dell Inspiron 3421 USB Port not working
Hello again.
I'm going to test it now at night when I get home from work to know the D+ and D-.
this computer are used and i bought it, according to the person I negotiated with, it was a nephew who traveled and ended up leaving the equipment, which had been idle for a long time. first sight all ok but in home i noted the problem in usb ports, I tested it when I bought it but I didn't test everything (see usb ports) but otherwise everything is ok.
Notebook is very expensive here in Brazil...
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Re: Dell Inspiron 3421 USB Port not working
if the PCH is really bad, it wasn't for everything is bad?
I may be talking nonsense, I'm new in the area of electronic maintenance...
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Re: Dell Inspiron 3421 USB Port not working
when I get home I send the measurements.
when I connect any usb it doesn't work, I've already put a mouse, a pen drive in all the ports and nothing
sorry for my bad english....
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Re: Dell Inspiron 3421 USB Port not working
yes, the webcam works fine.
the voltage are the same in the ports: 5v
I'm new to board repair, sorry if I didn't give you any correct information....Last edited by oziel1; 07-05-2021, 04:41 PM.
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Re: Dell Inspiron 3421 USB Port not working
Hello friend, you solve your problem?
I have the same issue and i need to solve....
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