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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 Bad USB driver on site?
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taadv

USA
10 Posts

Posted - 05/20/2019 :  12:19:13  Show Profile  Reply with Quote
After the error below, I've tried:
1) Deleting the 'installed' driver due to "Unknown USB device: Device Descriptor Request Failed".
2) Rebooting
3) Reinstalling driver from site yesterday: CH341SER.EXE
4) Plugging in GQ 390. (Boots with QG 380 message?)

>>>The same problem no matter how many times it's tried.<<<

Can someone please direct me to a solid driver or a clue as to why it's not installing even though it claims 'success' on CH341ser.exe?

Thanks,
T

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95126 bytes
Reply #1

taadv

USA
10 Posts

Posted - 05/20/2019 :  12:22:14  Show Profile  Reply with Quote
Another try on device manager errors screen.

Image Insert:

95126 bytes

Looks again, like a broken image; perhaps it's the server icon.

Edited by - taadv on 05/20/2019 12:23:05
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Reply #2

EmfDev

847 Posts

Posted - 05/20/2019 :  12:43:09  Show Profile  Reply with Quote
Hi taady, which version of windows are you using?
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Reply #3

taadv

USA
10 Posts

Posted - 05/20/2019 :  16:37:24  Show Profile  Reply with Quote
Sorry, Windows 10; the worst version ever!
(Spyware and BLOATWARE!)
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Reply #4

EmfDev

847 Posts

Posted - 05/21/2019 :  08:36:17  Show Profile  Reply with Quote
Try to uninstall the driver, Maybe you don't need the driver to run it on Windows 10.
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Reply #5

taadv

USA
10 Posts

Posted - 05/23/2019 :  18:53:21  Show Profile  Reply with Quote
That was it, btw.
Thanks!
quote:
Originally posted by EmfDev

Try to uninstall the driver, Maybe you don't need the driver to run it on Windows 10.

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Reply #6

cawauk

United Kingdom
1 Posts

Posted - 06/19/2019 :  02:21:10  Show Profile  Reply with Quote
I had this issue with Win7 and got around it by using 7zip: right click the .exe installer downloaded from GQelectronics and select 'unzip'. This extracted the contents of the executable to a folder where a setup.exe could then be run without problems. I think something was badly configured when creating the installer package.
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